热处理参数对Ti80钛合金板材表面污染层的影响

doi:10.13251/j.issn.0254-6051.2025.02.032

摘要/Abstract

摘要： 采用金相法研究了大气条件和表面涂覆/未涂覆防氧化涂料条件下热处理温度和保温时间对Ti80合金板材表面污染层的影响规律。结果表明,表面未涂覆防氧化涂料时,随着热处理温度升高及保温时间延长,Ti80合金板材表面污染层厚度不断增加,在800~900 ℃热处理时,表面污染层较薄容易去除,在965~990 ℃热处理时,表面污染层较厚去除困难。表面涂覆防氧化涂料时,防氧化涂料配比和涂覆厚度对Ti80合金板材表面污染层厚度均会产生较大影响,选择合适型号的涂料并保证一定的涂层厚度可以大幅减少Ti80合金板材高温热处理后表面污染层厚度,但不能完全消除表面污染层。

关键词: Ti80钛合金, 板材, 热处理, 防氧化涂料, 表面污染层

Abstract: Effects of heat treatment temperature and holding time on surface contamination layer of the Ti80 titanium alloy plate under atmospheric conditions and with/without surface anti-oxidation coating were studied by using metallographic method. The results show that when without surface anti-oxidation coating, as the heat treatment temperature increases and the insulation time prolongs, the thickness of the surface contamination layer on the Ti80 alloy plate continues to increase. When heat treated at 800-900 ℃, the surface contamination layer is relatively thin and easy to remove. However, when heat treated at 965-990 ℃, the removal of the surface contamination layer is difficult. When with surface anti-oxidation coating, the coating composition and coating thickness have a significant impact on the thickness of surface contamination layer on the Ti80 alloy plate. Choosing the appropriate type of coating and ensuring a certain coating thickness can significantly reduce the thickness of surface contamination layer on the Ti80 alloy plate after high temperature heat treatment, but it can not completely eliminate the surface contamination layer.

Key words: Ti80 titanium alloy, plate, heat treatment, anti-oxidation coating, surface contamination layer

中图分类号:

TG146.2⁺3

张强, 刘峰, 郝晓博, 王非, 于冬冬, 刘喜波, 李渤渤. 热处理参数对Ti80钛合金板材表面污染层的影响[J]. 金属热处理, 2025, 50(2): 206-211.

Zhang Qiang, Liu Feng, Hao Xiaobo, Wang Fei, Yu Dongdong, Liu Xibo, Li Bobo. Effect of heat treatment parameters on surface contamination layer of Ti80 titanium alloy plate[J]. Heat Treatment of Metals, 2025, 50(2): 206-211.

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