不锈钢槽道疲劳性能研究
Research on the Fatigue Performance of Stainless Steel Channel
王辉绵1
作者信息
- 1. 山西太钢不锈钢股份有限公司,山西 太原 030003
- 折叠
摘要
以S30478为原材料的30/20热轧预埋槽道为研究对象,通过疲劳试验,对多批次的疲劳破坏试样进行了外观、金相组织及扫描电镜分析,找出不锈钢槽道疲劳试验提前破坏的原因,发现槽道锚杆的铆接方式、槽道角部表面质量及固溶热处理工艺会影响疲劳开裂,其中槽道内角部表面凹陷或皱褶是主要原因.
Abstract
Using S30478 as the raw material,the 30/20 hot-rolled pre-embedded groove was taken as the research object.Through fatigue testing,the appearance,metallographic structure,and scanning electron microscopy analysis of multiple batches of fatigue failure samples were carried out to identify the reasons for the early failure of stainless steel groove fatigue testing.It was found that the riveting method of the groove anchor rod,the surface quality of the groove comer,and the solid solution heat treatment process were the reasons for fatigue cracking.The main reason is the concave or wrinkled surface at the inner comers of the groove.
关键词
不锈钢槽道/疲劳性能/角部/表面质量Key words
stainless steel channel/fatigue performance/come/surface quality引用本文复制引用
出版年
2024
NETL
NSTL
万方数据