摘要
利用化学成分分析、力学性能检验以及金相组织分析等方法,对SPA-H钢板冷弯开裂现象进行了分析。结果表明,SPA-H钢板表面带状组织级别达到4级,表面分布大量球状氧化铝夹杂是造成冷弯开裂的主要原因。
The reasons leading to cold bend cracks on the surface of a SPA-H steel plate are analyzed by such methods as chemical composition analysis, mechanical properties test and metal- lographic structure analysis. The analytical results show that the lamellar structure on the surface of the SPA-H steel plate is Level 4 which means that massive spherical alumina inclusions dis- tributed on the surface of the SPA-H steel plate are the principal reason leading to cold bend cracks.
出处
《鞍钢技术》
CAS
2013年第4期51-54,共4页
Angang Technology
关键词
SPA-H钢
缺陷
冷弯开裂
带状组织
氧化铝
SPA-H steel
defect
cold bend crack
lamellar structure
aluminum oxide
