Transactions of Nonferrous Metals Society of China The Chinese Journal of Nonferrous Metals

您目前所在的位置:首页 - 期刊简介 - 详细页面


Transactions of Nonferrous Metals Society of China

Vol. 32    No. 8    August 2022

[PDF Download]        


Effect of annealing temperature on microstructure and mechanical properties of cold-rolled commercially pure titanium sheets
Shuai ZHAO1, Yang WANG1, Lin PENG1,2, Yuan-xiang ZHANG1, Rong RAN1, Guo YUAN1

1. State Key Laboratory of Rolling and Automation, Northeastern University, Shenyang 110819, China;
2. Pangang Group Research Institute Company Limited, Panzhihua 617067, China

Abstract:The strength of traditional commercially pure titanium (CP-Ti) alloys often fails to meet the demand of structural materials. In order to enhance their mechanical properties, the cold-rolled CP-Ti alloys were annealed at different temperatures, and the recrystallization behavior and texture evolution were investigated. It was found that the bimodal microstructure (equiaxed and elongated grains) was formed after partial recrystallization, and the corresponding sample exhibited an excellent combination of ultimate tensile strength (702 MPa) and total elongation (36.4%). The recrystallization nucleation of CP-Ti sheets occurred preferentially in the high strain and the high-angle grain boundaries (HAGBs) regions. Meanwhile, the internal misorientations of the deformed heterogeneous grains increased and transformed into HAGBs, which further promoted the recrystallization nucleation. The main recrystallization texture was basal TD-split texture transformed from cold-rolled basal RD-split texture, and the oriented nucleation played a dominated role during recrystallization.


Key words: commercially pure titanium; recrystallization nucleation; bimodal microstructure; mechanical properties; texture

ISSN 1004-0609
CN 43-1238/TG

ISSN 1003-6326
CN 43-1239/TG

主管:中国科学技术协会 主办:中国有色金属学会 承办:中南大学
湘ICP备09001153号 版权所有:《中国有色金属学报》编辑部
地 址:湖南省长沙市岳麓山中南大学内 邮编:410083
电 话:0731-88876765,88877197,88830410   传真:0731-88877197   电子邮箱