钛含量对00Cr13Co9Ni5Mo5马氏体时效不锈钢冲击韧性的影响  

Effect of Ti Content on the Impact Toughness of Maraging Stainless Steel 00Cr13Co9Ni5Mo5

作　　者：罗静[1,2] 裴明哲[3] 雍岐龙[1] 苏杰[2] 杨卓越[2] 

机构地区：[1]昆明理工大学材料科学与工程学院,云南昆明650093 [2]钢铁研究总院结构材料研究所,北京100081 [3]航天推进技术研究院第十一研究所,陕西西安710100

出　　处：《钢铁》2010年第12期77-80,共4页Iron and Steel

摘　　要：通过具有不同钛含量的3炉试验钢,研究了钛含量对00Cr13Co9Ni5Mo5马氏体时效不锈钢的力学性能、金相组织和奥氏体含量的影响。研究结果表明:添加较多的Ti可显著降低基体组织中的有效C、N含量,大幅降低固溶、时效处理后残余/逆转变奥氏体含量,最终使冷脆转化温度显著上升,在提高强度的同时降低了钢的韧性。The effect of the Ti content on mechanical properties,microstructure and austenite content of maraging stainless steel 00Cr13Co9Ni5Mo5 was studied upon three tested steels with different Ti content.The results show that the effective content of C and N in martix can be reduced obviously by adding more Ti,which may significantly decrease the residual/reverted austenite content after solution and aging treatment,and the ductile-brittle transition temperature may be raised obviously which can improve the strength and reduce the toughness.

关 键 词：马氏体时效不锈钢 钛含量 残余/逆转变奥氏体量 冲击韧性 

分 类 号：TG142.71[一般工业技术—材料科学与工程]