采用圆环压缩法,研究了A5玻璃和石墨在TC4钛合金高温变形过程中的润滑性能.结果表明:用A5玻璃作润滑剂,摩擦因子m随温度的升高而减小,但在应变速率小于0.05s-1,温度高于950℃时,m随温度的升高而增大;温度低于950℃时,应变速率对m影响不大,而温度高于950℃时,m随应变速率的增大而减小.用石墨作润滑剂时,摩擦因子m随温度的升高和应变速率的减小而增加.
参考文献
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