A FeNiMnC alloy with strain glass transition

A FeNiMnC alloy with strain glass transition

Recent experimental and theoretical investigations suggested that doping sufficient point defects into a normal ferroelastic/martensitic alloy systems could lead to a frozen disordered state of local lattice strains (nanomartensite domains), thereby suppressing the long-range strain-ordering martens...

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Main Authors: Hui Ma, Jianmin Yang, Fengshuang Lu, Fangyu Qin, Wenlong Xiao, Xinqing Zhao
Format: Article
Language:English
Published: Elsevier 2018-02-01
Series:Progress in Natural Science: Materials International
Online Access:http://www.sciencedirect.com/science/article/pii/S1002007118300352
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spelling doaj-855894baf62e4231a44f959ed066563d2020-11-24T23:06:38ZengElsevierProgress in Natural Science: Materials International1002-00712018-02-012817477A FeNiMnC alloy with strain glass transitionHui Ma0Jianmin Yang1Fengshuang Lu2Fangyu Qin3Wenlong Xiao4Xinqing Zhao5School of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaFunctional Materials Research Institute, Central Iron and Steel Research Institute, Beijing 100081, China; Corresponding authors.School of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, ChinaSchool of Materials Science and Engineering, Beihang University, Beijing 100191, China; Corresponding authors.Recent experimental and theoretical investigations suggested that doping sufficient point defects into a normal ferroelastic/martensitic alloy systems could lead to a frozen disordered state of local lattice strains (nanomartensite domains), thereby suppressing the long-range strain-ordering martensitic transition. In this study, we attempt to explore the possibility of developing novel ferrous Elinvar alloys by replacing nickel with carbon and manganese as dopant species. A nominal Fe89Ni5Mn4.6C1.4 alloy was prepared by argon arc melting, and XRD, DSC, DMA and TEM techniques were employed to characterize the strain glass transition signatures, such as invariance in average structure, frequency dispersion in dynamic mechanical properties (storage modulus and internal friction) and the formation of nanosized strain domains. It is indicated that doping of Ni, Mn and C suppresses γ→α long-range strain-ordering martensitic transformation in Fe89Ni5Mn4.6C1.4 alloy, generating randomly distributed nanosized domains by strain glass transition. Keywords: Strain glass transition, Elinvar alloys, Point defects, Nanosized domainshttp://www.sciencedirect.com/science/article/pii/S1002007118300352
collection DOAJ
language English
format Article
sources DOAJ
author Hui Ma
Jianmin Yang
Fengshuang Lu
Fangyu Qin
Wenlong Xiao
Xinqing Zhao
spellingShingle Hui Ma
Jianmin Yang
Fengshuang Lu
Fangyu Qin
Wenlong Xiao
Xinqing Zhao
A FeNiMnC alloy with strain glass transition
Progress in Natural Science: Materials International
author_facet Hui Ma
Jianmin Yang
Fengshuang Lu
Fangyu Qin
Wenlong Xiao
Xinqing Zhao
author_sort Hui Ma
title A FeNiMnC alloy with strain glass transition
title_short A FeNiMnC alloy with strain glass transition
title_full A FeNiMnC alloy with strain glass transition
title_fullStr A FeNiMnC alloy with strain glass transition
title_full_unstemmed A FeNiMnC alloy with strain glass transition
title_sort fenimnc alloy with strain glass transition
publisher Elsevier
series Progress in Natural Science: Materials International
issn 1002-0071
publishDate 2018-02-01
description Recent experimental and theoretical investigations suggested that doping sufficient point defects into a normal ferroelastic/martensitic alloy systems could lead to a frozen disordered state of local lattice strains (nanomartensite domains), thereby suppressing the long-range strain-ordering martensitic transition. In this study, we attempt to explore the possibility of developing novel ferrous Elinvar alloys by replacing nickel with carbon and manganese as dopant species. A nominal Fe89Ni5Mn4.6C1.4 alloy was prepared by argon arc melting, and XRD, DSC, DMA and TEM techniques were employed to characterize the strain glass transition signatures, such as invariance in average structure, frequency dispersion in dynamic mechanical properties (storage modulus and internal friction) and the formation of nanosized strain domains. It is indicated that doping of Ni, Mn and C suppresses γ→α long-range strain-ordering martensitic transformation in Fe89Ni5Mn4.6C1.4 alloy, generating randomly distributed nanosized domains by strain glass transition. Keywords: Strain glass transition, Elinvar alloys, Point defects, Nanosized domains
url http://www.sciencedirect.com/science/article/pii/S1002007118300352
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