淬火介质对耐磨铸钢组织和性能的影响
发布时间：2019-05-09 14:56
【摘要】：分别研究了以水和机油作为淬火介质的42CrMo钢和双相耐磨钢淬火+回火后的显微组织和性能.确定了双相耐磨钢和42CrMo钢的最佳热处理工艺及性能.结果表明:双相耐磨钢经水淬和油淬回火后的显微组织均为板条马氏体+针状贝氏体+碳化物;42CrMo钢经水淬和油淬回火后的显微组织分别为回火马氏体+残余奥氏体和回火马氏体+铁素体+贝氏体.经过480h的低应力磨料磨损实验发现,水淬+280℃回火处理的42CrMo钢耐磨性能最好,其相对耐磨性可达高锰钢的1.558倍.
[Abstract]:The microstructure and properties of 42CrMo steel and dual-phase wear-resistant steel quenched and tempered with water and oil as quenching medium were studied respectively. The optimum heat treatment process and properties of dual phase wear resistant steel and 42CrMo steel were determined. The results show that the microstructure of the dual-phase wear-resistant steel after water quenching and oil quenching tempering is lath martensite acicular bainite carbide. The microstructure of 42CrMo steel after water quenching and oil quenching tempering is tempered martensite retained austenite and tempered martensite ferrite bainite, respectively. After 480 h low stress abrasive wear test, it is found that 42CrMo steel tempered at 280 鈩，
本文编号：2472852
[Abstract]:The microstructure and properties of 42CrMo steel and dual-phase wear-resistant steel quenched and tempered with water and oil as quenching medium were studied respectively. The optimum heat treatment process and properties of dual phase wear resistant steel and 42CrMo steel were determined. The results show that the microstructure of the dual-phase wear-resistant steel after water quenching and oil quenching tempering is lath martensite acicular bainite carbide. The microstructure of 42CrMo steel after water quenching and oil quenching tempering is tempered martensite retained austenite and tempered martensite ferrite bainite, respectively. After 480 h low stress abrasive wear test, it is found that 42CrMo steel tempered at 280 鈩，
本文编号：2472852
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