【摘 要】
：
砂型铸造工艺制备了BTMCr20港机衬板,对衬板的低温回火组织和性能进行了研究。研究表明,BTMCr20衬板的平均硬度为62HRC,冲击韧性为3 J/cm2,室温组织为回火马氏体、碳化物和残
【基金项目】
：
青岛港湾职业技术学院自然科学项目（QDGW2012Z03,QDGW2013Z08）
论文部分内容阅读
砂型铸造工艺制备了BTMCr20港机衬板,对衬板的低温回火组织和性能进行了研究。研究表明,BTMCr20衬板的平均硬度为62HRC,冲击韧性为3 J/cm2,室温组织为回火马氏体、碳化物和残余奥氏体,碳化物呈断续网状,弥散分布在金属基体之间,使衬板具备了良好的抗冲击磨损性能。通过在青岛港矿石码头的初步试验,BTMCr20衬板具有良好的硬度和抗冲击韧性,可大幅提高服役寿命,缩短维护周期。
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