Evolution of substructures in deformed NiAl single crystals oriented for single slip
We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate...
Ausführliche Beschreibung
Gespeichert in:
| Autor*in: |
Xiaoli, Shi [verfasserIn] S., Mahajan [verfasserIn] T. M., Pollock [verfasserIn] V. S., Arunachalam [verfasserIn] |
|---|
| Format: |
E-Artikel |
|---|---|
| Sprache: |
Englisch |
| Erschienen: |
1999 |
|---|
| Übergeordnetes Werk: |
Enthalten in: Philosophical magazine - London [u.a.] : Taylor and Francis, 1978, 79, 7, Seite 1555-1566 |
|---|---|
| Übergeordnetes Werk: |
volume:79 ; number:7 ; pages:1555-1566 |
| Links: |
|---|
| DOI / URN: |
10.1080/01418619908210379 |
|---|
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NLEJ253758246 |
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| 520 | |a We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. | ||
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10.1080/01418619908210379 doi (DE-627)NLEJ253758246 (TFO)8210379 DE-627 ger DE-627 rda eng Xiaoli, Shi verfasserin aut Evolution of substructures in deformed NiAl single crystals oriented for single slip 1999 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. S., Mahajan verfasserin aut T. M., Pollock verfasserin aut V. S., Arunachalam verfasserin aut Enthalten in Philosophical magazine London [u.a.] : Taylor and Francis, 1978 79, 7, Seite 1555-1566 Online-Ressource (DE-627)NLEJ253724619 (DE-600)2001649-9 (DE-576)090880773 1460-6992 nnns volume:79 number:7 pages:1555-1566 https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a Digitalisierung Deutschlandweit zugänglich ZDB-1-TFO GBV_NL_ARTICLE AR 79 7 1555-1566 |
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10.1080/01418619908210379 doi (DE-627)NLEJ253758246 (TFO)8210379 DE-627 ger DE-627 rda eng Xiaoli, Shi verfasserin aut Evolution of substructures in deformed NiAl single crystals oriented for single slip 1999 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. S., Mahajan verfasserin aut T. M., Pollock verfasserin aut V. S., Arunachalam verfasserin aut Enthalten in Philosophical magazine London [u.a.] : Taylor and Francis, 1978 79, 7, Seite 1555-1566 Online-Ressource (DE-627)NLEJ253724619 (DE-600)2001649-9 (DE-576)090880773 1460-6992 nnns volume:79 number:7 pages:1555-1566 https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a Digitalisierung Deutschlandweit zugänglich ZDB-1-TFO GBV_NL_ARTICLE AR 79 7 1555-1566 |
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10.1080/01418619908210379 doi (DE-627)NLEJ253758246 (TFO)8210379 DE-627 ger DE-627 rda eng Xiaoli, Shi verfasserin aut Evolution of substructures in deformed NiAl single crystals oriented for single slip 1999 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. S., Mahajan verfasserin aut T. M., Pollock verfasserin aut V. S., Arunachalam verfasserin aut Enthalten in Philosophical magazine London [u.a.] : Taylor and Francis, 1978 79, 7, Seite 1555-1566 Online-Ressource (DE-627)NLEJ253724619 (DE-600)2001649-9 (DE-576)090880773 1460-6992 nnns volume:79 number:7 pages:1555-1566 https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a Digitalisierung Deutschlandweit zugänglich ZDB-1-TFO GBV_NL_ARTICLE AR 79 7 1555-1566 |
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10.1080/01418619908210379 doi (DE-627)NLEJ253758246 (TFO)8210379 DE-627 ger DE-627 rda eng Xiaoli, Shi verfasserin aut Evolution of substructures in deformed NiAl single crystals oriented for single slip 1999 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. S., Mahajan verfasserin aut T. M., Pollock verfasserin aut V. S., Arunachalam verfasserin aut Enthalten in Philosophical magazine London [u.a.] : Taylor and Francis, 1978 79, 7, Seite 1555-1566 Online-Ressource (DE-627)NLEJ253724619 (DE-600)2001649-9 (DE-576)090880773 1460-6992 nnns volume:79 number:7 pages:1555-1566 https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a Digitalisierung Deutschlandweit zugänglich ZDB-1-TFO GBV_NL_ARTICLE AR 79 7 1555-1566 |
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10.1080/01418619908210379 doi (DE-627)NLEJ253758246 (TFO)8210379 DE-627 ger DE-627 rda eng Xiaoli, Shi verfasserin aut Evolution of substructures in deformed NiAl single crystals oriented for single slip 1999 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. S., Mahajan verfasserin aut T. M., Pollock verfasserin aut V. S., Arunachalam verfasserin aut Enthalten in Philosophical magazine London [u.a.] : Taylor and Francis, 1978 79, 7, Seite 1555-1566 Online-Ressource (DE-627)NLEJ253724619 (DE-600)2001649-9 (DE-576)090880773 1460-6992 nnns volume:79 number:7 pages:1555-1566 https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a Digitalisierung Deutschlandweit zugänglich ZDB-1-TFO GBV_NL_ARTICLE AR 79 7 1555-1566 |
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evolution of substructures in deformed nial single crystals oriented for single slip |
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Evolution of substructures in deformed NiAl single crystals oriented for single slip |
| abstract |
We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. |
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We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. |
| abstract_unstemmed |
We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’. |
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<?xml version="1.0" encoding="UTF-8"?><collection xmlns="http://www.loc.gov/MARC21/slim"><record><leader>01000naa a22002652 4500</leader><controlfield tag="001">NLEJ253758246</controlfield><controlfield tag="003">DE-627</controlfield><controlfield tag="005">20240215134651.0</controlfield><controlfield tag="007">cr uuu---uuuuu</controlfield><controlfield tag="008">240215s1999 xx |||||o 00| ||eng c</controlfield><datafield tag="024" ind1="7" ind2=" "><subfield code="a">10.1080/01418619908210379</subfield><subfield code="2">doi</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(DE-627)NLEJ253758246</subfield></datafield><datafield tag="035" ind1=" " ind2=" "><subfield code="a">(TFO)8210379</subfield></datafield><datafield tag="040" ind1=" " ind2=" "><subfield code="a">DE-627</subfield><subfield code="b">ger</subfield><subfield code="c">DE-627</subfield><subfield code="e">rda</subfield></datafield><datafield tag="041" ind1=" " ind2=" "><subfield code="a">eng</subfield></datafield><datafield tag="100" ind1="1" ind2=" "><subfield code="a">Xiaoli, Shi</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="245" ind1="1" ind2="0"><subfield code="a">Evolution of substructures in deformed NiAl single crystals oriented for single slip</subfield></datafield><datafield tag="264" ind1=" " ind2="1"><subfield code="c">1999</subfield></datafield><datafield tag="336" ind1=" " ind2=" "><subfield code="a">Text</subfield><subfield code="b">txt</subfield><subfield code="2">rdacontent</subfield></datafield><datafield tag="337" ind1=" " ind2=" "><subfield code="a">Computermedien</subfield><subfield code="b">c</subfield><subfield code="2">rdamedia</subfield></datafield><datafield tag="338" ind1=" " ind2=" "><subfield code="a">Online-Ressource</subfield><subfield code="b">cr</subfield><subfield code="2">rdacarrier</subfield></datafield><datafield tag="520" ind1=" " ind2=" "><subfield code="a">We have examined the deformation behaviour of NiAl single crystals, oriented for single slip, at 77 and 300 K and the resulting substructures. The macroscopic yield strength decreases by a factor of two when the deformation temperature is increased from 77 to 300 K. At 77 K, the work-hardening rate after yielding is very high, and the deformation-induced substructures consist of uniformly distributed, nearly straight edge dislocations, jogged screw dislocations and prismatic loops. The substructure observed after deformation at 300 K is comprised of walls consisting of prismatic loops and zigzag screw dislocations. We have rationalized the preceding observations in terms of the non-conservative motion of jogged screw dislocations. We have also argued that the observed microstructures may limit the motion of dislocations during additional deformation, implying that the limited ductility in NiAl at low temperatures may be ‘acquired’.</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">S., Mahajan</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">T. M., Pollock</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="700" ind1="1" ind2=" "><subfield code="a">V. S., Arunachalam</subfield><subfield code="e">verfasserin</subfield><subfield code="4">aut</subfield></datafield><datafield tag="773" ind1="0" ind2="8"><subfield code="i">Enthalten in</subfield><subfield code="t">Philosophical magazine</subfield><subfield code="d">London [u.a.] : Taylor and Francis, 1978</subfield><subfield code="g">79, 7, Seite 1555-1566</subfield><subfield code="h">Online-Ressource</subfield><subfield code="w">(DE-627)NLEJ253724619</subfield><subfield code="w">(DE-600)2001649-9</subfield><subfield code="w">(DE-576)090880773</subfield><subfield code="x">1460-6992</subfield><subfield code="7">nnns</subfield></datafield><datafield tag="773" ind1="1" ind2="8"><subfield code="g">volume:79</subfield><subfield code="g">number:7</subfield><subfield code="g">pages:1555-1566</subfield></datafield><datafield tag="856" ind1="4" ind2="0"><subfield code="u">https://www.tib.eu/de/suchen/id/tandf%3A363c7aa43c0dcd705f1d6e9ba431ed206a35d57a</subfield><subfield code="x">Digitalisierung</subfield><subfield code="z">Deutschlandweit zugänglich</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">ZDB-1-TFO</subfield></datafield><datafield tag="912" ind1=" " ind2=" "><subfield code="a">GBV_NL_ARTICLE</subfield></datafield><datafield tag="951" ind1=" " ind2=" "><subfield code="a">AR</subfield></datafield><datafield tag="952" ind1=" " ind2=" "><subfield code="d">79</subfield><subfield code="e">7</subfield><subfield code="h">1555-1566</subfield></datafield></record></collection>
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