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对CuCr50合金在5GPa压力下进行950℃保温20 min的高温高压处理,借助光学显微镜、扫描电镜、透射电镜对经高温高压处理前后CuCr50合金中Cr相进行观察,并用纳米压痕技术对Cr相的微观力学性能进行测试,探讨了高温高压处理对CuCr50合金中Cr相的微观力学性能的影响。结果表明:高温高压处理能使CuCr50合金中Cr相更加致密,增大Cr相的硬度、弹性模量、硬弹比和弹性回复系数,减小摩擦系数。
The CuCr50 alloy was treated under high pressure and high pressure at 950 ℃ for 20 min at 5GPa pressure. The Cr phase in CuCr50 alloy was observed with optical microscope, scanning electron microscope and transmission electron microscope before and after high temperature and high pressure treatment. The mechanical properties of CuCr50 alloy were investigated. The effects of high temperature and high pressure on the micro mechanical properties of Cr phase in CuCr50 alloy were discussed. The results show that the high temperature and high pressure treatment can make the Cr phase in CuCr50 alloy more compact, and increase the hardness, elastic modulus, elastic ratio and elastic recovery coefficient of Cr phase, and reduce the friction coefficient.