闵小华

个人信息Personal Information

教授

博士生导师

硕士生导师

性别:男

毕业院校:埼玉大学

学位:博士

所在单位:材料科学与工程学院

学科:材料学. 材料加工工程

办公地点:材料馆304室

联系方式:辽宁省大连市甘井子区凌工路2号 大连理工大学 材料科学与工程学院 116024 办公电话0411-84708189 手机13149898722

电子邮箱:minxiaohua@dlut.edu.cn

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Mechanical twinning and dislocation slip multilayered deformation microstructures in beta-type Ti-Mo base alloy

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论文类型:期刊论文

发表时间:2015-06-01

发表刊物:SCRIPTA MATERIALIA

收录刊物:SCIE、EI、Scopus

卷号:102

页面范围:79-82

ISSN号:1359-6462

关键字:Titanium alloys; Twinning; Multilayered deformation microstructures; Interface; Ductility

摘要:A 10-layer Ti-10Mo-1Fe/Ti-10Mo-3Fe alternating stack material was manufactured by hot-roll bonding and heat treatment. The interfaces between layers could not be detected except for transition region in Fe concentration. However, the interfaces prevented {3 3 2}<1 1 3> twinning in the Ti-10Mo-1Fe region from expanding throughout Ti-10Mo-3Fe region which was deformed by dislocation slips despite having the same crystallographic character. The artificially multilayered twinning/dislocation slip deformation microstructures provide a novel approach for controlling the balance between uniform elongation and yield strength in beta-type titanium alloys. (C) 2015 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.