铸造技术2011，Vol.32Issue(5)：650-653,4.
中碳Cr-Si-Mn系耐磨铸钢的组织与性能
Microstructure and Mechanical Properties of Medium-carbon Cr-Si-Mn Wear-resistant Cast Steel
肖程 1黄维刚1
作者信息
- 1. 四川大学材料科学与工程学院,四川,成都,610065
- 折叠
摘要
Abstract
The effects of quenching and tempering temperatures and cooling rate on microstructure and properties of medium-carbon Cr-Si-Mn wear-resistant cast steel were investigated.The results reveal that the hardness keeps its value at 50 ～52 HRC and the impact toughness increases significantly with the increase of quenching temperature.The impact toughness is up to 75 J.cm-2 by quenching at 1 050 ℃.When tempering temperature was above or below 250 ℃, the hardness and the impact toughness decreased.When the cooling rate came to about 9 ℃/min, the bainite/martensite duplex microstructure with 5 ％ retained austenite was obtained.The hardness and impact toughness of tested steel are 45 HRC and 125 J ·cm-2 respectively.关键词
耐磨铸钢/热处理工艺/残余奥氏体/力学性能Key words
Cast steel/ Heat treatment/ Retained austenite/ Mechanical properties分类
矿业与冶金引用本文复制引用
肖程,黄维刚..中碳Cr-Si-Mn系耐磨铸钢的组织与性能[J].铸造技术,2011,32(5):650-653,4.
