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对复合添加铟锶新型机械刀片硬质合金试样进行了常规淬火、分级淬火和磁场淬火处理,并进行了热疲劳性能和不同温度的耐磨损性能测试。结果表明,与常规淬火相比,分级淬火的合金25℃磨损体积基本不变,600℃磨损体积减小36%,热疲劳裂纹级别从9级变为7级;磁场淬火的合金在25℃和600℃测试条件下的磨损体积分别减小39%和58%,热疲劳裂纹级别从9级变为2级。该硬质合金热处理工艺优选磁场淬火。
A new type of indium-strontium compound mechanical sample was added to harden the samples, quenched by conventional quenching, quenching and magnetic quenching, and tested for their thermal fatigue properties and wear resistance under different temperatures. The results show that compared with the conventional quenching, the wear volume of the alloy hardened at 25 ℃ is basically the same, the wear volume of the alloy at 600 ℃ is reduced by 36%, the thermal fatigue crack is changed from 9 to 7, and the alloy hardened at 25 ℃ and The wear volume decreases by 39% and 58% respectively at 600 ℃ and the thermal fatigue crack level changes from 9 to 2. The cemented carbide heat treatment process is preferably field quenching.