热处理条件对30CrNiMoV钢力学性能的影响  

EFFECT OF HEAT TREATMENT CONDITIONS ON MECHANICAL PROPERTY OF 30CrNiMoV STEEL

作　　者：莫立华[1] 徐全礼 齐瑞昌[1] 毕敬[1] 李东[1] 徐勇 

机构地区：[1]中国科学院金属研究所,沈阳110015 [2]沈阳市锅炉与压力容器检验所,沈阳110031

出　　处：《理化检验（物理分册）》2000年第8期345-348,共4页Physical Testing and Chemical Analysis(Part A:Physical Testing)

摘　　要：研究了不同热处理条件对 30 Cr Ni Mo V高强钢力学性能的影响。实验结果表明 ,淬火温度为 860～ 92 0°C,回火温度为 550～ 60 0°C时 ,该钢的低温冲击韧性、断裂韧性和抗拉强度可获良好的匹配。疲劳裂纹扩展速率在稳定扩展区对组织结构不敏感 ,而在门槛区或近门槛区 ,则对组织结构敏感。The influence of heat treatment conditions on mechanical property of 30CrNiMoV steel was investigated. The results show that better combination of low temperature impact toughness, fracture toughness and tensile strength can be obtained by quenching at between 860°C and 920°C and tempering at from 550°C to 600°C. Fatigue crack growth rate is insensitive to the microstructure in mid range, but is sensitive in the near threshold and threshold region.

关 键 词：淬火 温度 力学性能 热处理 30CrNiMoV钢 回火 

分 类 号：TG161[金属学及工艺—热处理]