研究了激光直接沉积成形A-100钢沉积态及热处理态组织,通过调整热处理工艺获得激光直接沉积成形A-100钢回火马氏体+回火贝氏体混合基体组织.不同热处理工艺下性能对比结果表明,相比淬火马氏体组织,回火贝氏体+回火马氏体混合组织具有更高的强度,但塑性有所下降.%The microstructure of the deposited material and laser deposited A-100 steel got by adjusting heat treatment methods were studied.The results show that the mixed martensite-bainite microstructure specimens have a high tensile strength with a low plasticity compared with the quenched martensite microstructure specimens after different heat treatment.
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