热处理对中碳Cr2MnSiV耐磨铸钢组织性能的影响
Effect of Heat Treatment on Microstructure and Properties of Medium-carbon Wear-resistance Cast Steel Cr2MnSiV
刘澌思, 黄维刚
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作者单位：(四川大学 材料科学与工程学院, 四川 成都 610065)
中文关键字：耐磨铸钢； 热处理； 冲击韧度
英文关键字：wear-resistant cast steel; heat treatment; impact toughness
中文摘要：研究了淬火和回火温度对中碳Cr2MnSiV耐磨铸钢的组织和力学性能的影响。结果表明：实验钢的硬度随淬火温度的升高基本保持不变，硬度值为54～53 HRC，冲击韧度随淬火温度的升高显著提高，1050 ℃淬火、250 ℃回火后达到60 J/cm2。回火温度超过250 ℃，硬度和冲击韧度均下降。
英文摘要：The effects of quenching and tempering temperature on microstructure and properties of medium-carbon wear-resistant cast steel Cr2MnSiV were investigated. The results show that the hardness keeps higher value (54～53 HRC) and the impact toughness increases significantly with the increase of quenching temperature. The impact toughness is up to 60 J/cm2 by quenching at 1050 ℃and tempering at 250 ℃. When tempering temperature is above 250 ℃, the hardness and impact toughness decrease.