The hardness and the wear resistance decrease after multiple tempering.
多次回火后，高钒高速钢硬度降低，耐磨粒磨损性能下降。
After tempering treatment at different conditions, the tempering stability of Fe-base hardfacing layer containing multiple alloying element was investigated.
研究了高碳高铬铸铁型硬质合金堆焊层在不同热处理工艺条件下的组织、硬度与耐磨性。
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