Phase separation in ion bombarded feni invar alloys
Autor(a) principal: | |
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Data de Publicação: | 1991 |
Outros Autores: | , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Institucional da UFRGS |
Texto Completo: | http://hdl.handle.net/10183/95399 |
Resumo: | Studies of the effects of ion bombardment on the phase equilibria and ordering of FeNi alloys with 30.6 and 39.5 at. % Ni were performed. The FeNi samples were bombarded with Ne, Ar, and Kr at different doses and temperatures, and analyzed using the conversion electron Mössbauer spectroscopy (CEMS) technique with 57Fe. The changes in the CEMS spectra of Fe69.4Ni30.6 and Fe60.5Ni39.5 alloys, bombarded with Ne and Ar, indicate a phase separation, but no evidence of ordering. The Kr bombardment does not produce any change, however samples of 39.5 at. % Ni already showing phase separation returned to the single phase state after Kr irradiation. Our results give strong evidences of a prevalence of displacement mixing for bombardment with heavier ions, and of radiation enhanced diffusion for bombardment with lighter ions. |
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Gallas, Marcia RussmanAmaral, LivioJornada, Joao Alziro Herz da2014-05-20T02:04:46Z19910021-8979http://hdl.handle.net/10183/95399000056372Studies of the effects of ion bombardment on the phase equilibria and ordering of FeNi alloys with 30.6 and 39.5 at. % Ni were performed. The FeNi samples were bombarded with Ne, Ar, and Kr at different doses and temperatures, and analyzed using the conversion electron Mössbauer spectroscopy (CEMS) technique with 57Fe. The changes in the CEMS spectra of Fe69.4Ni30.6 and Fe60.5Ni39.5 alloys, bombarded with Ne and Ar, indicate a phase separation, but no evidence of ordering. The Kr bombardment does not produce any change, however samples of 39.5 at. % Ni already showing phase separation returned to the single phase state after Kr irradiation. Our results give strong evidences of a prevalence of displacement mixing for bombardment with heavier ions, and of radiation enhanced diffusion for bombardment with lighter ions.application/pdfengJournal of Applied Physics. Woodbury. Vol. 70, n. 1 (July 1991), p. 131-134Física da matéria condensadaBombardeamento de ionsLigasLigas invarEfeito mossbauerImplantação de íonsPhase separation in ion bombarded feni invar alloysEstrangeiroinfo:eu-repo/semantics/articleinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/openAccessreponame:Repositório Institucional da UFRGSinstname:Universidade Federal do Rio Grande do Sul (UFRGS)instacron:UFRGSORIGINAL000056372.pdf000056372.pdfTexto completo (inglês)application/pdf619025http://www.lume.ufrgs.br/bitstream/10183/95399/1/000056372.pdfde03a11140065da57d909fa56e84059eMD51TEXT000056372.pdf.txt000056372.pdf.txtExtracted Texttext/plain18249http://www.lume.ufrgs.br/bitstream/10183/95399/2/000056372.pdf.txta1de4c25d1a87b0ce4850cceb2386994MD52THUMBNAIL000056372.pdf.jpg000056372.pdf.jpgGenerated Thumbnailimage/jpeg1565http://www.lume.ufrgs.br/bitstream/10183/95399/3/000056372.pdf.jpg3ce3c3f19b6e3e1462f7e43e4287be2bMD5310183/953992022-02-22 05:17:27.092204oai:www.lume.ufrgs.br:10183/95399Repositório de PublicaçõesPUBhttps://lume.ufrgs.br/oai/requestopendoar:2022-02-22T08:17:27Repositório Institucional da UFRGS - Universidade Federal do Rio Grande do Sul (UFRGS)false |
dc.title.pt_BR.fl_str_mv |
Phase separation in ion bombarded feni invar alloys |
title |
Phase separation in ion bombarded feni invar alloys |
spellingShingle |
Phase separation in ion bombarded feni invar alloys Gallas, Marcia Russman Física da matéria condensada Bombardeamento de ions Ligas Ligas invar Efeito mossbauer Implantação de íons |
title_short |
Phase separation in ion bombarded feni invar alloys |
title_full |
Phase separation in ion bombarded feni invar alloys |
title_fullStr |
Phase separation in ion bombarded feni invar alloys |
title_full_unstemmed |
Phase separation in ion bombarded feni invar alloys |
title_sort |
Phase separation in ion bombarded feni invar alloys |
author |
Gallas, Marcia Russman |
author_facet |
Gallas, Marcia Russman Amaral, Livio Jornada, Joao Alziro Herz da |
author_role |
author |
author2 |
Amaral, Livio Jornada, Joao Alziro Herz da |
author2_role |
author author |
dc.contributor.author.fl_str_mv |
Gallas, Marcia Russman Amaral, Livio Jornada, Joao Alziro Herz da |
dc.subject.por.fl_str_mv |
Física da matéria condensada Bombardeamento de ions Ligas Ligas invar Efeito mossbauer Implantação de íons |
topic |
Física da matéria condensada Bombardeamento de ions Ligas Ligas invar Efeito mossbauer Implantação de íons |
description |
Studies of the effects of ion bombardment on the phase equilibria and ordering of FeNi alloys with 30.6 and 39.5 at. % Ni were performed. The FeNi samples were bombarded with Ne, Ar, and Kr at different doses and temperatures, and analyzed using the conversion electron Mössbauer spectroscopy (CEMS) technique with 57Fe. The changes in the CEMS spectra of Fe69.4Ni30.6 and Fe60.5Ni39.5 alloys, bombarded with Ne and Ar, indicate a phase separation, but no evidence of ordering. The Kr bombardment does not produce any change, however samples of 39.5 at. % Ni already showing phase separation returned to the single phase state after Kr irradiation. Our results give strong evidences of a prevalence of displacement mixing for bombardment with heavier ions, and of radiation enhanced diffusion for bombardment with lighter ions. |
publishDate |
1991 |
dc.date.issued.fl_str_mv |
1991 |
dc.date.accessioned.fl_str_mv |
2014-05-20T02:04:46Z |
dc.type.driver.fl_str_mv |
Estrangeiro info:eu-repo/semantics/article |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
format |
article |
status_str |
publishedVersion |
dc.identifier.uri.fl_str_mv |
http://hdl.handle.net/10183/95399 |
dc.identifier.issn.pt_BR.fl_str_mv |
0021-8979 |
dc.identifier.nrb.pt_BR.fl_str_mv |
000056372 |
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0021-8979 000056372 |
url |
http://hdl.handle.net/10183/95399 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.relation.ispartof.pt_BR.fl_str_mv |
Journal of Applied Physics. Woodbury. Vol. 70, n. 1 (July 1991), p. 131-134 |
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info:eu-repo/semantics/openAccess |
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openAccess |
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application/pdf |
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