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超硬高速鋼W12Mo3Cr4V3N的組織和性能

  • 摘要: V3N鋼工業生產鋼材之碳化物顆粒比普通18-4-1鋼及相同W、Mo、V含量的含鈷鋼細小,機械性能基本達到在研制初期所報導的水平,硬度、強度及韌性與M42及HSP-15鋼基本相同,但高硬度(HRC69)下的脆化傾向較小;抗回火軟化性較高,但高溫硬度較低。加工幾種典型的難切材料時,切削性能達到含5-8%鈷的超硬型高速鋼之水平。

     

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