铸造2013，Vol.62Issue(8)：777-780,4.
热处理对超临界材料C12A钢组织与性能的影响
Effect of Heat Treatment for Microstructure and Properties of Super-Critical C12A Steel
韩刚 1刘仲礼 1武明 1王明佳1
作者信息
- 1. 烟台台海玛努尔核电设备股份有限公司技术中心,山东烟台264003
- 折叠
摘要
Abstract
In this paper,the effect of tempering temperature on microstructure and properties of C12A heat-resistant steel was studied.The results show that the microstructure of as-cast C 12A comprises lath-type martensite and a small amount of ferrite,however,the morphology lath-type martensite changed to polygon,among which there exist some carbonitride after normalizing and tempering.With higher tempering temperature,obvious changes ofmartensite morphology and precipitation distribution take place.As a result,at the range of 730-810 ℃,the tensile strength decrease with the tempering temperature increase,but increase when above 810 ℃,while the elongation has the opposite results.When tempering at the range of 750-770 ℃,this kind of material has good comprehensive properties.关键词
C12A钢/热处理/强度/伸长率Key words
C12 steel/ heat treatment/ strength/ elongation分类
矿业与冶金引用本文复制引用
韩刚,刘仲礼,武明,王明佳..热处理对超临界材料C12A钢组织与性能的影响[J].铸造,2013,62(8):777-780,4.
