Hall–Petch k dependencies in nanopolycrystals

Author:

Armstrong Ronald William1

Affiliation:

1. Professor Emeritus, Center for Energetic Concepts Development, Department of Mechanical Engineering, University of Maryland, College Park, MD, USA

Abstract

Measurements at nanopolycrystal grain sizes of the Hall–Petch plastic flow stress dependence on the reciprocal square root of polycrystal grain diameter occasionally fall short of expectations. The present report reviews experimental and theoretical aspects of such behaviours for a number of metal systems. Comparison with the results on copper had led to prediction on a dislocation pile-up mechanics basis of an even stronger grain size dependence that is now shown to carry over to explanation of similar results reported recently for cold-drawn eutectoid steel wires. In the current review, emphasis is given on additional important results achieved on the production of nanoscale zinc and tungsten carbide materials by Professor Jay Narayan and colleagues at North Carolina State University.

Publisher

Thomas Telford Ltd.

Subject

Condensed Matter Physics,General Materials Science

同舟云学术

1.学者识别学者识别

2.学术分析学术分析

3.人才评估人才评估

"同舟云学术"是以全球学者为主线,采集、加工和组织学术论文而形成的新型学术文献查询和分析系统,可以对全球学者进行文献检索和人才价值评估。用户可以通过关注某些学科领域的顶尖人物而持续追踪该领域的学科进展和研究前沿。经过近期的数据扩容,当前同舟云学术共收录了国内外主流学术期刊6万余种,收集的期刊论文及会议论文总量共计约1.5亿篇,并以每天添加12000余篇中外论文的速度递增。我们也可以为用户提供个性化、定制化的学者数据。欢迎来电咨询!咨询电话:010-8811{复制后删除}0370

www.globalauthorid.com

TOP

Copyright © 2019-2024 北京同舟云网络信息技术有限公司
京公网安备11010802033243号  京ICP备18003416号-3