铸造技术2017，Vol.38Issue(4)：843-846,4.DOI:10.16410/j.issn1000-8365.2017.04.027
正火与回火处理对低合金铸钢组织和性能的影响
Effects of Normalizing and Tempering Treatment on Microstructure and Properties of Low Alloy Cast Steel
王佐铭1
作者信息
- 1. 潍坊科技学院机械工程学院,山东潍坊262700
- 折叠
摘要
Abstract
Effects of normalizing and tempering temperature on the microstructure and mechanical properties of low alloy cast steel were investigated by means of metallographic structure analysis and mechanical property testing.The results show that the microstructure of the low alloy steel after normalizing transforms from bulky pearlite and ferrite into bainite and ferrite.The steel normalized at 890 ℃ has the highest hardness.The microstmcture becomes sorbite and ferdte which keep bainite traces when the steel is tempered at 500～650 ℃.With the increase of the tempering temperature,the hardness and tensile strength of the steel increase firstly and then decrease.The steel tempered at 560～590 ℃ owns the best comprehensive mechanical properties.关键词
正火处理/回火处理/铸钢/显微组织/力学性能Key words
normalizing treatment/tempering treatment/cast steel/microstructure/mechanical properties分类
矿业与冶金引用本文复制引用
王佐铭..正火与回火处理对低合金铸钢组织和性能的影响[J].铸造技术,2017,38(4):843-846,4.
