M42热处理中淬火温度对碳化物转变机制的影响
发布时间：2018-08-02 17:54
【摘要】：以精锻M42喷射成形高速钢为原料,通过热处理正交试验,优化了材料热处理工艺,并分析了不同热处理制度下材料显微组织、硬度、抗弯强度及碳化物的演变规律。结果显示,最佳热处理工艺为:淬火保温温度1180℃,回火温度540℃,回火3次,每次1 h。该工艺下,M42洛氏硬度达到67.2 HRC,抗弯强度达到3115 MPa。淬火保温温度通过控制M_6C型碳化物的溶解量,影响最终碳化物的尺寸。淬火温度为1190℃时,M_6C型碳化物充分溶解,回火过程碳化物均匀弥散析出。
[Abstract]:The heat treatment process of precision forging M42 spray formed high speed steel was optimized by orthogonal test of heat treatment. The evolution of microstructure, hardness, bending strength and carbides were analyzed under different heat treatment conditions. The results show that the optimum heat treatment process is as follows: quenching temperature 1180 鈩，
本文编号：2160216
[Abstract]:The heat treatment process of precision forging M42 spray formed high speed steel was optimized by orthogonal test of heat treatment. The evolution of microstructure, hardness, bending strength and carbides were analyzed under different heat treatment conditions. The results show that the optimum heat treatment process is as follows: quenching temperature 1180 鈩，
本文编号：2160216
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