报道了硬度ＨＲＣ为２０和４０的两种３０ＣｒＭｎＳｉ材料在１００─９００℃的力学性能及升温率、应变率和热处理条件对抗拉强度、屈服强度的影响。在低温区，材料性能随温度的升高，呈现缓慢下降，其数值与常温相差不多，热处理状态对该区影响甚大，升温率有一定影响；在高温区，材料强度大大降低，其数值随温度变化不大，不同升温速率的影响及热处理状态影响消失；在中温区，材料性能随温度升高呈现快速下降趋势，热处理状态对材料性能影响大，不同升温率对材料性能影响不大。
The influence of temperature, heating rate and strain rate on the tensile and yield strength of 30CrMnSi at the temperature range from 100℃ to 900℃ has been investigated. At low temperature region the performance parameters of material with a rise of temperature is dropped slowly and the heat treated condition has a great effect on the behavior of material, but the effect of elevating temperature rate can not be neglected. At high temperature region the material strength reduced greatly is not changed notably with the increase of temperature, heating rate and the heat treated condition. At the middle temperature region,the performance of material is fast dropped with the increase of temperature and the effects of the elevating temperature rate and the heat treated condition are not obvious.Correspondent: WANG Chunkui, associate professor,Institute of Mechanics, Chinese Academy of Sciences,Beijing ,100080
参考文献
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