支承辊用Cr5钢线接触滚动疲劳性能  

Line Contact Rolling Fatigue Properties of Cr5 Steels for Backup Roll

作　　者：王玉辉[1] 廖波[1] 肖福仁[1] 蔡大勇[1] 

机构地区：[1]燕山大学亚稳材料制备技术与科学国家重点实验室,河北秦皇岛066004

出　　处：《金属热处理》2006年第9期25-29,共5页Heat Treatment of Metals

摘　　要：研究了940℃淬火450℃、535℃回火，两种热处理工艺下Cr5型支承辊用钢的线接触滚动疲劳性能，测定了其P-σ-N曲线。结果表明，Cr5钢450℃回火后硬度为51～52HRC的试样，比535℃回火后得到硬度为45～46HRC的试样能承受更高的疲劳应力。The line contact rolling fatigue properties of Cr5 steels for backup roll under two kinds of heat treatment 940℃ quenching and 450℃, 535℃ tempering were studied and the P-σ-N curves were also measured. The results show that the fatigue performances of Cr5 steel with hardness 51 ～ 52 HRC when tempered at 450℃ were remarkably better than that of Cr5 steel with hardness 45～46 HRC when tempered at 535℃.

关 键 词：支承辊 线接触滚动疲劳 回火 P-σ-N曲线 

分 类 号：TG113.255[金属学及工艺—物理冶金]