24小时热门版块排行榜

返回列表

【奖励】本帖被评价155次，作者qspan增加金币 122.2 个

当前只显示满足指定条件的回帖，点击这里查看本话题的所有回帖

qspan

木虫 (正式写手)

MM-EPI: 3
应助: 18 (小学生)
金币: 2822.2
帖子: 956
在线: 154.7小时
虫号: 835910

[资源] 金属所卢柯老师的2013刚发表的Science文章：超硬超稳定层状镍

Strain-Induced Ultrahard and Ultrastable Nanolaminated Structure in Nickel

X. C. Liu1,*,
H. W. Zhang1,*,
K. Lu1,2,†

+ Author Affiliations

1Shenyang National Laboratory for Materials Science, Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China.

2Herbert Gleiter Institute of Nanoscience, Nanjing University of Science and Technology, Nanjing 210094, China.

↵†Corresponding author. E-mail: lu@imr.ac.cn

↵* These authors contributed equally to this work.

Abstract
Editor's Summary

Heavy plastic deformation may refine grains of metals and make them very strong. But the strain-induced refinement saturates at large strains, forming three-dimensional ultrafine-grained (3D UFG) structures with random orientations. Further refinement of this microstructure is limited because of the enhanced mobility of grain boundaries. Very-high-rate shear deformation with high strain gradients was applied in the top surface layer of bulk nickel, where a 2D nanometer-scale laminated structure was induced. The strongly textured nanolaminated structure (average lamellar thickness of 20 nanometers) with low-angle boundaries among the lamellae is ultrahard and ultrastable: It exhibits a hardness of 6.4 gigapascal—which is higher than any reported hardness of the UFG nickel—and a coarsening temperature of 40 kelvin above that in UFG nickel

回复此楼

» 本帖附件资源列表

欢迎监督和反馈：小木虫仅提供交流平台，不对该内容负责。
本内容由用户自主发布，如果其内容涉及到知识产权问题，其责任在于用户本人，如对版权有异议，请联系邮箱：xiaomuchong@tal.com
附件 1 : 1.pdf

2013-10-18 08:49:24, 457.51 K

附件 2 : 2.pdf

2013-10-18 08:49:40, 1.26 M

» 收录本帖的淘帖专辑推荐

材料科学最新前沿热点	资源收集	Nano&Micro	先进材料
仿真建模与计算	uicorn3	科技	材料模拟与数字计算方法
科研啊努力啊希望有用啊	材料淘贴收录	金属力学性能	必学软件
无尽的前沿