Failure Analysis of WC–2Ni–1Co Rotor Part
Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Faraz, M. [verfasserIn] |
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| Format: |
E-Artikel |
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| Sprache: |
Englisch |
| Erschienen: |
2010 |
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| Schlagwörter: |
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| Anmerkung: |
© ASM International 2010 |
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| Übergeordnetes Werk: |
Enthalten in: Practical failure analysis - Springer New York, 2001, 10(2010), 4 vom: 18. Mai, Seite 312-321 |
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| Übergeordnetes Werk: |
volume:10 ; year:2010 ; number:4 ; day:18 ; month:05 ; pages:312-321 |
| Links: |
|---|
| DOI / URN: |
10.1007/s11668-010-9358-3 |
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SPR021665028 |
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| 520 | |a Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. | ||
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| 700 | 1 | |a Ali, Ashraf |4 aut | |
| 700 | 1 | |a Naz, Nausheen |4 aut | |
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10.1007/s11668-010-9358-3 doi (DE-627)SPR021665028 (SPR)s11668-010-9358-3-e DE-627 ger DE-627 rakwb eng Faraz, M. verfasserin aut Failure Analysis of WC–2Ni–1Co Rotor Part 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © ASM International 2010 Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. WC–Co (dpeaa)DE-He213 Brittle fracture (dpeaa)DE-He213 Embrittlement (dpeaa)DE-He213 Fractography (dpeaa)DE-He213 Corrosion (dpeaa)DE-He213 Dissolution (dpeaa)DE-He213 Microhardness (dpeaa)DE-He213 Tariq, Fawad aut Ali, Ashraf aut Naz, Nausheen aut Enthalten in Practical failure analysis Springer New York, 2001 10(2010), 4 vom: 18. Mai, Seite 312-321 (DE-627)886125871 (DE-600)2893589-5 5555-1313 nnns volume:10 year:2010 number:4 day:18 month:05 pages:312-321 https://dx.doi.org/10.1007/s11668-010-9358-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 10 2010 4 18 05 312-321 |
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10.1007/s11668-010-9358-3 doi (DE-627)SPR021665028 (SPR)s11668-010-9358-3-e DE-627 ger DE-627 rakwb eng Faraz, M. verfasserin aut Failure Analysis of WC–2Ni–1Co Rotor Part 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © ASM International 2010 Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. WC–Co (dpeaa)DE-He213 Brittle fracture (dpeaa)DE-He213 Embrittlement (dpeaa)DE-He213 Fractography (dpeaa)DE-He213 Corrosion (dpeaa)DE-He213 Dissolution (dpeaa)DE-He213 Microhardness (dpeaa)DE-He213 Tariq, Fawad aut Ali, Ashraf aut Naz, Nausheen aut Enthalten in Practical failure analysis Springer New York, 2001 10(2010), 4 vom: 18. Mai, Seite 312-321 (DE-627)886125871 (DE-600)2893589-5 5555-1313 nnns volume:10 year:2010 number:4 day:18 month:05 pages:312-321 https://dx.doi.org/10.1007/s11668-010-9358-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 10 2010 4 18 05 312-321 |
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10.1007/s11668-010-9358-3 doi (DE-627)SPR021665028 (SPR)s11668-010-9358-3-e DE-627 ger DE-627 rakwb eng Faraz, M. verfasserin aut Failure Analysis of WC–2Ni–1Co Rotor Part 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © ASM International 2010 Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. WC–Co (dpeaa)DE-He213 Brittle fracture (dpeaa)DE-He213 Embrittlement (dpeaa)DE-He213 Fractography (dpeaa)DE-He213 Corrosion (dpeaa)DE-He213 Dissolution (dpeaa)DE-He213 Microhardness (dpeaa)DE-He213 Tariq, Fawad aut Ali, Ashraf aut Naz, Nausheen aut Enthalten in Practical failure analysis Springer New York, 2001 10(2010), 4 vom: 18. Mai, Seite 312-321 (DE-627)886125871 (DE-600)2893589-5 5555-1313 nnns volume:10 year:2010 number:4 day:18 month:05 pages:312-321 https://dx.doi.org/10.1007/s11668-010-9358-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 10 2010 4 18 05 312-321 |
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10.1007/s11668-010-9358-3 doi (DE-627)SPR021665028 (SPR)s11668-010-9358-3-e DE-627 ger DE-627 rakwb eng Faraz, M. verfasserin aut Failure Analysis of WC–2Ni–1Co Rotor Part 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © ASM International 2010 Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. WC–Co (dpeaa)DE-He213 Brittle fracture (dpeaa)DE-He213 Embrittlement (dpeaa)DE-He213 Fractography (dpeaa)DE-He213 Corrosion (dpeaa)DE-He213 Dissolution (dpeaa)DE-He213 Microhardness (dpeaa)DE-He213 Tariq, Fawad aut Ali, Ashraf aut Naz, Nausheen aut Enthalten in Practical failure analysis Springer New York, 2001 10(2010), 4 vom: 18. Mai, Seite 312-321 (DE-627)886125871 (DE-600)2893589-5 5555-1313 nnns volume:10 year:2010 number:4 day:18 month:05 pages:312-321 https://dx.doi.org/10.1007/s11668-010-9358-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 10 2010 4 18 05 312-321 |
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10.1007/s11668-010-9358-3 doi (DE-627)SPR021665028 (SPR)s11668-010-9358-3-e DE-627 ger DE-627 rakwb eng Faraz, M. verfasserin aut Failure Analysis of WC–2Ni–1Co Rotor Part 2010 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier © ASM International 2010 Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. WC–Co (dpeaa)DE-He213 Brittle fracture (dpeaa)DE-He213 Embrittlement (dpeaa)DE-He213 Fractography (dpeaa)DE-He213 Corrosion (dpeaa)DE-He213 Dissolution (dpeaa)DE-He213 Microhardness (dpeaa)DE-He213 Tariq, Fawad aut Ali, Ashraf aut Naz, Nausheen aut Enthalten in Practical failure analysis Springer New York, 2001 10(2010), 4 vom: 18. Mai, Seite 312-321 (DE-627)886125871 (DE-600)2893589-5 5555-1313 nnns volume:10 year:2010 number:4 day:18 month:05 pages:312-321 https://dx.doi.org/10.1007/s11668-010-9358-3 lizenzpflichtig Volltext GBV_USEFLAG_A SYSFLAG_A GBV_SPRINGER AR 10 2010 4 18 05 312-321 |
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Failure Analysis of WC–2Ni–1Co Rotor Part |
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Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. © ASM International 2010 |
| abstractGer |
Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. © ASM International 2010 |
| abstract_unstemmed |
Abstract This study deals with the analysis of an ink-producing machine rotor part composed of WC–2Ni–1Co which failed in brittle manner during service. The part was made by powder metallurgy techniques and is being used in ink-grinding machines due to its high hardness and wear resistance. Similar parts had worked satisfactorily for many ink compositions, but the part under investigation failed prematurely. Investigation was considered important because the part is expensive, and other identical components frequently failed after a short service life. Moreover, replacement of the part requires complete dismantling of the machine which reduces the production rate. Spectroscopic analysis, density, optical and scanning electron microscopy, SEM–EDS analysis, fractography, X-ray diffraction, and microhardness measurements were carried out on failed parts to find out the root causes of the failure. Results revealed that the part cracked due to combined effects of selective dissolution of metal binder-caused corrosive action of ink solution and hydrogen-induced deterioration of WC and Ni–Co phases. Localized removal of binder phase left the hard WC phase unsupported. Cracks were found initiating from the root of the machined slot which acted as a stress concentration point and resulted in brittle fracture. © ASM International 2010 |
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Failure Analysis of WC–2Ni–1Co Rotor Part |
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https://dx.doi.org/10.1007/s11668-010-9358-3 |
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Tariq, Fawad Ali, Ashraf Naz, Nausheen |
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Tariq, Fawad Ali, Ashraf Naz, Nausheen |
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10.1007/s11668-010-9358-3 |
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2024-07-03T23:51:47.241Z |
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