气候变化领域集成服务门户(CCPortal): Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys

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DOI	10.1073/pnas.2023181118
	Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys
	Dong Z.; Li W.; Schönecker S.; Jiang B.; Vitos L.
发表日期	2021
ISSN	00278424
卷号	118 期号:14
英文摘要	The Invar anomaly is one of the most fascinating phenomena observed in magnetically ordered materials. Invariant thermal expansion and elastic properties have attracted substantial scientific attention and led to important technological solutions. By studying planar faults in the high-temperature magnetically disordered state of Ni1-ϵFec , here we disclose a completely different anomaly. An invariant plastic deformation mechanism is characterized by an unchanged stacking fault energy with temperature within wide concentration and temperature ranges. This anomaly emerges from the competing stability between the face-centered cubic and hexagonal close-packed structures and occurs in other paramagnetic or nonmagnetic systems whenever the structural balance exists. The present findings create a platform for tailoring high-temperature properties of technologically relevant materials toward plastic stability at elevated temperatures. © 2021 National Academy of Sciences. All rights reserved.
英文关键词	High-temperature alloys; Invar; Paramagnetism; Plasticity
语种	英语
来源期刊	Proceedings of the National Academy of Sciences of the United States of America
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/180019
作者单位	State Key Laboratory of Mechanical Transmissions, College of Materials Science and Engineering, Chongqing University, Chongqing, 400044, China; National Engineering Research Center for Magnesium Alloys, Chongqing University, Chongqing, 400044, China; Applied Materials Physics, Department of Materials Science and Engineering, KTH Royal Institute of Technology, Stockholm, SE-10044, Sweden; Department of Physics and Astronomy, Division of Materials Theory, Uppsala University, Uppsala, SE-75120, Sweden; Research Institute for Solid State Physics and Optics, Wigner Research Center for Physics, Budapest, H-1525, Hungary
推荐引用方式 GB/T 7714	Dong Z.,Li W.,Schönecker S.,et al. Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys[J],2021,118(14).
APA	Dong Z.,Li W.,Schönecker S.,Jiang B.,&Vitos L..(2021).Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys.Proceedings of the National Academy of Sciences of the United States of America,118(14).
MLA	Dong Z.,et al."Invariant plastic deformation mechanism in paramagnetic nickel-iron alloys".Proceedings of the National Academy of Sciences of the United States of America 118.14(2021).