2205钢棒材冲击性能不良的原因
Cause for Poor Impact Property of 2205 Steel Bars
刘智勇1
作者信息
- 1. 沈阳科金特种材料有限公司,辽宁沈阳 110101
- 折叠
摘要
某热处理厂一批经固溶处理、尺寸为φ120 mm×1 200 mm的2205钢棒材冲击韧度较差.为此复查了棒材的化学成分、力学性能、显微组织和冲击试样的断口形貌.结果表明:棒材含有较多的非金属夹杂物,破坏了基体的连续性,因而这批棒材的塑性和韧性较差.
Abstract
A lot of 2205 steel bars 120 mm in diameter by 1 200 mm long solution treated exhibited relatively poor impact toughness in a heat treatment plant.For this reason,the chemical composition,mechanical properties and microstructure of the bars as well as the pattern of impact specimen fracture were reexamined.The results showed that the bar contained many non-metallic inclusions which destroyed the continuity of the matrix,and,as a result,this batch of bars exhibited relatively poor plasticity and toughness.
关键词
冲击性能/非金属夹杂物/微观组织/固溶处理Key words
impact property/non-metallic inclusion/microstructure/solution treatment引用本文复制引用
出版年
2024
NETL
NSTL
万方数据