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用不同种类的 P/M(粉末冶金)钼合金轧制板材,经1900℃,1小时再结晶处理,在蠕变试验温度为1700～1900℃,蠕变应力为4.9～39.2MPa 下,研究了晶粒形态和尺寸以及合金元素和蠕变应力对稳态蠕变速率的影响。估算了蠕变变形的激活能和应变指数。
The plates were rolled with different types of P / M (powder metallurgy) molybdenum alloy and recrystallized at 1900 ° C for 1 hour. With creep test temperature of 1700-1900 ° C and creep stress of 4.9-39.2 MPa, Effect of grain shape and size, and alloying elements and creep stress on steady-state creep rate. The activation energy and strain index of creep deformation are estimated.