Transactions of Materials and Heat Treatment

Title：Optimization on forging temperature of new titanium alloy for mechanical fasteners

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ClassificationCode：TG146.4

year,vol(issue):pagenumber：2020,45(1):35-40

Abstract：

The forging tests of new titanium alloy for mechanical fasteners were conducted at different forging temperatures, and the wear resistance and high temperature oxidation resistance properties were tested and analyzed. The results show that the wear volume and weight gain per unit area of specimens decrease first and then increase with the increasing of initial forging temperature from 1020 ℃ to 1100 ℃. Compared with the initial forging at 1020 ℃, the wear volume and weight gain per unit area of specimens decrease by 35.48% and 36.36% respectively when the initial forging temperature is 1080 ℃. With the increasing of final forging temperature from 800 ℃ to 880 ℃, the wear volume and weight gain per unit area of specimens decrease first and then increase. However, compared with the final forging at 800 ℃, the wear volume and the weight gain per unit area of specimens decrease by 42.86% and 39.13% respectively when the final forging temperature is 860 ℃. Thus, the initial forging of Ti-3Al-5Mo-4.5V-1Sr-0.5Ce titanium alloy for mechanical fasteners is preferred to be at 1080 ℃ and the final forging temperature is not less than 860 ℃.

Funds：

重庆市自然科学基金资助项目(cstc2012jjA0004)

作者简介：周渝庆(1980-)，男，硕士，副教授 E-mail：yunguan74046@163.com

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