Cr12MoV模具钢渗扩氮中温转变复合强韧化  

Strengthening and Toughening of Die Steel Cr12MoV by Prenitriding-Diffusing and Bainitic Transformation

作　　者：王传雅[1] 徐维[1] 王莎莎[1] 徐凡娴 

机构地区：[1]大连铁道学院

出　　处：《特殊钢》1995年第6期26-31,共6页Special Steel

基　　金：国家自然科学基金

摘　　要：研究了渗扩氮中温转变对Ｃｒ１２ＭｏＶ钢的显微组织、扩氮层的显微硬度和心部力学性能的影响。结果表明，Ｃｒ１２ＭｏＶ钢经渗扩氮中温转变复合强韧化处理后，其显微组织细化，组织分布和显微硬度分布优异，力学性能明显提高，模具使用寿命显著延长．The influence of bainitic transformation of die steel or12Mov prenitrided and diffused on microstructureand microhardness distribution, and mechanical properties at core of steel Cr12MoV was studied. With treated, the fined structure, the excellent distribution of microstructure and hardness, the higher mechanical properties and longer service life of die steel CrlZMoV treated were obtained.

关 键 词：渗扩氮 中温转变 复合强韧化 模具钢 

分 类 号：TG142.45[一般工业技术—材料科学与工程]