The alteration of the strength, hardness and impact ductility of 5CrNiMo steel using three different additions of RE La element is studied in this paper. The mechanical properties of 5CrNiMo steel with RE La additions...The alteration of the strength, hardness and impact ductility of 5CrNiMo steel using three different additions of RE La element is studied in this paper. The mechanical properties of 5CrNiMo steel with RE La additions are be compared with that of the 5CrNiMo steel on the same heat-treatment condition without RE La element addition. The results show that the strength, hardness and impact ductility of 5CrNiMo steel will be improved obviously when the content of RE La element is proper, and as the content of RE La element is 0.033%(mass fraction), the 5CrNiMo steel has the best mechanical properties.展开更多
采用不同的处理温度和处理时间,对5Cr Ni Mo热作模具钢进行了钒钛铈共渗,并进行了热疲劳性能和耐磨损性能的测试与分析。结果表明:随处理温度从875℃增加至975℃,处理时间从2 h增加至8 h,热作模具钢的热疲劳性能和耐磨损性能先提高后下...采用不同的处理温度和处理时间,对5Cr Ni Mo热作模具钢进行了钒钛铈共渗,并进行了热疲劳性能和耐磨损性能的测试与分析。结果表明:随处理温度从875℃增加至975℃,处理时间从2 h增加至8 h,热作模具钢的热疲劳性能和耐磨损性能先提高后下降。适宜的热作模具钢处理温度和处理时间分别优选为:950℃、6h。展开更多
文摘The alteration of the strength, hardness and impact ductility of 5CrNiMo steel using three different additions of RE La element is studied in this paper. The mechanical properties of 5CrNiMo steel with RE La additions are be compared with that of the 5CrNiMo steel on the same heat-treatment condition without RE La element addition. The results show that the strength, hardness and impact ductility of 5CrNiMo steel will be improved obviously when the content of RE La element is proper, and as the content of RE La element is 0.033%(mass fraction), the 5CrNiMo steel has the best mechanical properties.
文摘采用不同的处理温度和处理时间,对5Cr Ni Mo热作模具钢进行了钒钛铈共渗,并进行了热疲劳性能和耐磨损性能的测试与分析。结果表明:随处理温度从875℃增加至975℃,处理时间从2 h增加至8 h,热作模具钢的热疲劳性能和耐磨损性能先提高后下降。适宜的热作模具钢处理温度和处理时间分别优选为:950℃、6h。
