本文研究了GCr15轴承钢经激光表面熔凝处理后显微组织的变化,讨论了激光表面熔凝的强化机理。激光表面熔凝强化的本质是马氏体的孪晶强化,残余奥氏体的形变强化、碳的固溶强化及枝晶细化强化等。
The microstructure of GCrl5 steel surface melted by laser has been investi-gated.The strengthening mechanisms of surface melting are discussed.It shows that thestrengthening mechanisms of surface melting are the twinning strengthening of martensite,the de
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