12Cr2Mo1R钢焊缝金属不同热处理状态下各项性能试验
Performance Tests of 12Cr2Mo1R Steel Weld Metal Under Different Heat Treatment States
王军杰 1王天先 1刘宝剑 1邱伏礼1
作者信息
- 1. 青岛兰石重型机械设备有限公司,青岛 266426
- 折叠
摘要
本文通过对12Cr2Mo1R钢焊缝金属在不同热处理状态下室温、高温力学性能以及-20℃、-30℃ KV2低温冲击韧性和硬度等的检测,对比分析焊缝金属各项性能与不同热处理温度之间的变化趋势;用试验数据说明为了防止焊缝后热消氢(DHT)时硬脆碳化物析出造成焊缝金属强度及硬度过高而使焊接接头开裂,焊缝焊后不能用后热消氢(DHT)来代替中间消除应力热处理(ISR).
Abstract
This article compares and analyzes the changes in various properties of 12Cr2Mo1R steel weld metal under different heat treatment conditions,including room temperature and high-temperature mechanical properties,as well as-20℃ and-30℃ KV2 low-temperature impact toughness and hardness.Using experimental data to illustrate that in order to prevent the precipitation of hard and brittle carbides during post weld heat dissipation(DHT),which may cause excessive strength and hardness of the weld metal and lead to cracking of the welded joint,post weld heat dissipation(DHT)cannot be used instead of intermediate stress relief heat treatment(ISR).
关键词
力学性能/后热消氢/中间消除应力热处理/碳化物Key words
mechanical properties/post heat hydrogen dissipation/intermediate stress relief/heat treatment/carbides引用本文复制引用
出版年
2024
NETL
NSTL
万方数据