Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals

Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. El...
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Autor*in:	Lewis, N. [verfasserIn] Cieslak, M. J. Savage, W. F.

Format:	Artikel
Sprache:	Englisch

Erschienen:	1987

Schlagwörter:	Ferrite Austenite Weld Metal Nickel Content Molybdenum Content

Anmerkung:	© Chapman and Hall Ltd. 1987

Übergeordnetes Werk:	Enthalten in: Journal of materials science - Kluwer Academic Publishers, 1966, 22(1987), 8 vom: Aug., Seite 2799-2810
Übergeordnetes Werk:	volume:22 ; year:1987 ; number:8 ; month:08 ; pages:2799-2810

Links:	Volltext

DOI / URN:	10.1007/BF01086474

Katalog-ID:	OLC2046148800

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520			\|a Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism.
650		4	\|a Ferrite
650		4	\|a Austenite
650		4	\|a Weld Metal
650		4	\|a Nickel Content
650		4	\|a Molybdenum Content
700	1		\|a Cieslak, M. J. \|4 aut
700	1		\|a Savage, W. F. \|4 aut
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allfields	10.1007/BF01086474 doi (DE-627)OLC2046148800 (DE-He213)BF01086474-p DE-627 ger DE-627 rakwb eng 670 VZ Lewis, N. verfasserin aut Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals 1987 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1987 Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. Ferrite Austenite Weld Metal Nickel Content Molybdenum Content Cieslak, M. J. aut Savage, W. F. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 22(1987), 8 vom: Aug., Seite 2799-2810 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:22 year:1987 number:8 month:08 pages:2799-2810 https://doi.org/10.1007/BF01086474 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_2333 GBV_ILN_4082 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4316 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4700 AR 22 1987 8 08 2799-2810
spelling	10.1007/BF01086474 doi (DE-627)OLC2046148800 (DE-He213)BF01086474-p DE-627 ger DE-627 rakwb eng 670 VZ Lewis, N. verfasserin aut Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals 1987 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1987 Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. Ferrite Austenite Weld Metal Nickel Content Molybdenum Content Cieslak, M. J. aut Savage, W. F. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 22(1987), 8 vom: Aug., Seite 2799-2810 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:22 year:1987 number:8 month:08 pages:2799-2810 https://doi.org/10.1007/BF01086474 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_2333 GBV_ILN_4082 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4316 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4700 AR 22 1987 8 08 2799-2810
allfields_unstemmed	10.1007/BF01086474 doi (DE-627)OLC2046148800 (DE-He213)BF01086474-p DE-627 ger DE-627 rakwb eng 670 VZ Lewis, N. verfasserin aut Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals 1987 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1987 Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. Ferrite Austenite Weld Metal Nickel Content Molybdenum Content Cieslak, M. J. aut Savage, W. F. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 22(1987), 8 vom: Aug., Seite 2799-2810 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:22 year:1987 number:8 month:08 pages:2799-2810 https://doi.org/10.1007/BF01086474 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_2333 GBV_ILN_4082 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4316 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4700 AR 22 1987 8 08 2799-2810
allfieldsGer	10.1007/BF01086474 doi (DE-627)OLC2046148800 (DE-He213)BF01086474-p DE-627 ger DE-627 rakwb eng 670 VZ Lewis, N. verfasserin aut Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals 1987 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1987 Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. Ferrite Austenite Weld Metal Nickel Content Molybdenum Content Cieslak, M. J. aut Savage, W. F. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 22(1987), 8 vom: Aug., Seite 2799-2810 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:22 year:1987 number:8 month:08 pages:2799-2810 https://doi.org/10.1007/BF01086474 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_2333 GBV_ILN_4082 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4316 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4700 AR 22 1987 8 08 2799-2810
allfieldsSound	10.1007/BF01086474 doi (DE-627)OLC2046148800 (DE-He213)BF01086474-p DE-627 ger DE-627 rakwb eng 670 VZ Lewis, N. verfasserin aut Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals 1987 Text txt rdacontent ohne Hilfsmittel zu benutzen n rdamedia Band nc rdacarrier © Chapman and Hall Ltd. 1987 Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. Ferrite Austenite Weld Metal Nickel Content Molybdenum Content Cieslak, M. J. aut Savage, W. F. aut Enthalten in Journal of materials science Kluwer Academic Publishers, 1966 22(1987), 8 vom: Aug., Seite 2799-2810 (DE-627)129546372 (DE-600)218324-9 (DE-576)014996774 0022-2461 nnns volume:22 year:1987 number:8 month:08 pages:2799-2810 https://doi.org/10.1007/BF01086474 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_OLC SSG-OLC-TEC GBV_ILN_11 GBV_ILN_20 GBV_ILN_23 GBV_ILN_30 GBV_ILN_31 GBV_ILN_32 GBV_ILN_40 GBV_ILN_62 GBV_ILN_65 GBV_ILN_70 GBV_ILN_2004 GBV_ILN_2006 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2057 GBV_ILN_2333 GBV_ILN_4082 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4316 GBV_ILN_4319 GBV_ILN_4323 GBV_ILN_4700 AR 22 1987 8 08 2799-2810
language	English
source	Enthalten in Journal of materials science 22(1987), 8 vom: Aug., Seite 2799-2810 volume:22 year:1987 number:8 month:08 pages:2799-2810
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topic_facet	Ferrite Austenite Weld Metal Nickel Content Molybdenum Content
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authorswithroles_txt_mv	Lewis, N. @@aut@@ Cieslak, M. J. @@aut@@ Savage, W. F. @@aut@@
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author	Lewis, N.
spellingShingle	Lewis, N. ddc 670 misc Ferrite misc Austenite misc Weld Metal misc Nickel Content misc Molybdenum Content Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals
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topic_title	670 VZ Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals Ferrite Austenite Weld Metal Nickel Content Molybdenum Content
topic	ddc 670 misc Ferrite misc Austenite misc Weld Metal misc Nickel Content misc Molybdenum Content
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title	Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals
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title_full	Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals
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author_browse	Lewis, N. Cieslak, M. J. Savage, W. F.
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doi_str_mv	10.1007/BF01086474
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title_sort	microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified cf-8m weld metals
title_auth	Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals
abstract	Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. © Chapman and Hall Ltd. 1987
abstractGer	Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. © Chapman and Hall Ltd. 1987
abstract_unstemmed	Abstract Solidification and microsegregation studies were performed on alloy CF-8M weld metal which solidified via the primary austenite/eutectic ferrite mode. All of the major alloying elements (chromium, nickel, molybdenum) were observed to segregate to interdendritic areas upon solidification. Electron microprobe analysis revealed a substantial chromium and molybdenum enrichment of the eutectic ferrite relative to the austenite dendrites even in structures water-quenched from the solidus temperature. Scanning transmission electron microscopy/energy dispersive spectrometry (STEM/EDS) profiles taken within the eutectic ferrite phase revealed a similar pattern of major element distribution as has been observed by other investigators in residual primary delta ferrite dendrites. Within the eutectic ferrite, the highest chromium and molybdenum content and the lowest nickel content was found at the eutectic ferrite/austenite boundary. STEM/EDS analyses of in situ water-quenched weld microstructures revealed that compositional modification of the eutectic ferrite had occurred upon cooling from the solidus. In particular, the chromium concentration of the eutectic-ferrite was observed to increase by approximately 3 wt% in the temperature range ∼ 1300 to ∼ 750°C. In the same temperature range, the nickel content of the eutectic-ferrite decreased by approximately 4 wt % and the molybdenum content increased within the same phase by approximately 1 wt%. The transformation of eutectic ferrite to austenite as the weld metal cools to room temperature is consistent with a volume diffusion-control mechanism. © Chapman and Hall Ltd. 1987
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title_short	Microsegregation and eutectic ferrite-to-austenite transformation in primary austenite solidified CF-8M weld metals
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