Transactions of Materials and Heat Treatment

Title：Superplastic tensile experiment by the fixed m value method at high-temperature for titanium alloy TB6

Authors： Ma Chao Wang Gaochao

Unit： Chengdu Aeronautic Polytechnic Nanchang Hangkong University

KeyWords： TB6 titanium alloy superplasticity tensile strain rate sensitivity index m elongation A

ClassificationCode：V261.3+2

year,vol(issue):pagenumber：2016,41(10):88-91

Abstract：

On the basis of previous research results on TB6 titanium alloy, the superplastic performance of titanium alloy TB6 was studied by self-developed superplastic stretch control program of the fixed m value method. The control program has its own stretch control, real- time data acquisition, processing and analysis, drawing monitoring curve and other functions. After the full commissioning program was debugged, high temperature tensile tests of titanium alloy TB6 were conducted with different strain rates sensitivity index m being 0.30,0.35,0.40,0.45 respectively at deformation temperature 750 ℃, and the elongation A was obtained by collecting data as 285%, 318%, 337%, 367% respectively. Then, after processing and analyzing the experimental results, the relationship curves between strain rate sensitivity index m and elongation A were plotted, and then by regression analysis, the equation between superplastic strain rate sensitivity index m and elongation A was obtained.

Funds：

国家自然科学基金资助项目（51075196）

作者简介：马超（1986-），男，硕士，讲师 E-mail：machao09JY@163.com

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