超快冷工艺对Q390C钢组织与性能的影响  

EFFECT OF ULTRA FAST COOLING ON MICROSTRUCTURE AND PROPERTIES OF Q390C STEEL

作　　者：吴良芹[1] 任娟[1] 

机构地区：[1]沙洲职业工学院机电工程系,江苏张家港215600

出　　处：《上海金属》2013年第6期31-33,37,共4页Shanghai Metals

基　　金：江苏省高等职业院校高级访问工程师计划资助项目(2013)

摘　　要：研究了热轧后超快冷工艺对Q390C钢组织与性能的影响。结果表明:超快冷后Q390C钢的组织为珠光体和铁素体,其屈服强度、抗拉强度和断后伸长率分别可达388 MPa、548 MPa和27.3%,-20℃的冲击功为47 J;超快冷工艺提高了Q390C钢的力学性能。The effect of ultra fast cooling process on microstructure and properties of hot rolled Q390C steel was researched. The results showed that through ultra fast cooling process, the microstructure of Q390C steel was pearlite and ferrite, the yield strength, tensile strength and elongation were 388 MPa, 548 MPa and 27.3% respectively, and impact energy at -20 ℃ was 47 J. The ultra fast cooling process improved the mechanical properties of Q390C steel.

关 键 词：超快冷工艺 力学性能 组织 珠光体 铁素体 

分 类 号：TG146.2[一般工业技术—材料科学与工程]