Transactions of Materials and Heat Treatment

Title：Influence of claddingrolling conditions on microstructure and properties of Ti64 titanium alloy

Authors： Xia Xiangchun

Unit： (Department of Electrical and Mechanical Engineering Yongcheng Vocational College Yongcheng 476600 China)

KeyWords： titanium alloy claddingrolling microstructure mechanical property Schmidt factor

ClassificationCode：TG146

year,vol(issue):pagenumber：2019,44(2):182-188

Abstract：

In order to study the influence of claddingrolling conditions on the structure and properties of Ti64 titanium alloy, Ti64 titanium alloy sheets were coated and rolled under different temperatures and reduction ratios. Then, the specimens were made, and the microstructure, texture and tensile mechanical properties of Ti64 titanium alloy were analyzed by optical microscope, EBSD and tensile tester. The results show that Ti64 titanium alloy coated and rolled at 930 ℃ exhibits a twophase structure, and its tensile strength and elongation in the direction of RD and TD are both larger than that of coated and rolled at 1050 ℃. Increasing the rolling reduction ratio is beneficial to promote the full recrystallization of alloy, and the comprehensive mechanical properties of Ti64 titanium alloy prepared at 930 ℃ and rolling compression rate of 87% are the best. All the Ti64 titanium alloy coated and rolled at 1050 ℃ exhibits a Widmanstatten structure, and the Schmidt factor of 1050 ℃-87% sample fluctuates greatly and exhibits a diversified slip system. So the tensile mechanical properties anisotropy becomes smaller.

Funds：

基金项目:河南省科技发展计划基金(092300410135)；河南省高等学校重点科研基金 (16B460009)

作者简介：夏祥春 (1981-)，男，学士，讲师 Email：wt.lewis@foxmail.com

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