低温形变热处理对20CrMnTi钢冲击韧度的影响  

The Effect of Low Temperature Thermmechanical Treatment on Impact-Toughness for 20CrMnTi

作　　者：李保成[1] 赵家萍[1] 张治民[1] 

机构地区：[1]华北工学院材料工程系,山西太原030051

出　　处：《热加工工艺》2003年第4期55-55,57,共2页Hot Working Technology

摘　　要：将20CrMnTi钢在较低温度下(在两相区附近)以不同的变形量进行塑性变形后淬火-回火,然后研究其力学性能和微观组织。试验表明,变形温度越高和变形量越大硬度也越高,但冲击韧度则是在较低的温度下有好的效果。The mechanic property and microstructure of steel 20CrMnTi deformed at low temperature (about section α+γ ) , and after quenching and temper was studied. Results show hardness is increasing along with increase of deforming temperature and deforming degree, but impacttoughness is increasing observably at low temperature.

关 键 词：形变热处理 硬度 冲击韧度 

分 类 号：TG142.41[一般工业技术—材料科学与工程] TG156.93[金属学及工艺—金属材料]