正火工艺对A537CL.1性能与组织的影响  

Effect of Normalizing Process on Performance and Microstructure of Steels GRD. A537CL.1

作　　者：钟小杰[1,2] 刘小林[2] 赵鸿金[1] 

机构地区：[1]江西理工大学,江西赣州341000 [2]新余钢铁集团有限公司,江西新余338001

出　　处：《江西冶金》2016年第2期1-3,共3页Jiangxi Metallurgy

摘　　要：采用不同的正火工艺对热轧A537CL.1试样进行系列热处理试验,利用常温拉伸试验机、摆锤式冲击试验机、金相显微镜研究热处理工艺对试验钢组织性能的影响,结果表明:热轧钢板正火后强度降低,钢板出炉后风冷与空冷相比,风冷钢板强度略有提高,但冲击值降低;在880℃保温、保温时间36 min的正火工艺条件下,试验钢综合性能优良,满足LPG低温储罐用钢的要求。A series heat treatment tests are performed on steel grd. A537CL. 1 with different normalizing processes and the evolvement of microstructure and properties of experiment steels influenced on heat treatment process are studied by tensile testing machine, pendulum impact testing machine and optical microscope. The results show that the strength values of experiment steels decrease after normalizing. Its strength slightly increases when forced air cooled compared with air cooling, but impact value decreases. Holding for 36min at 880℃, the comprehensive properties of the experiment steels are superior and meet the requirements of LPG Low Tempera- ture Storage Tanks .

关 键 词：低温储罐用钢 正火 风冷 组织性能 

分 类 号：TG142[一般工业技术—材料科学与工程] TG156.4[金属学及工艺—金属材料]