摘要
介绍了国内外热装微合金化中厚板产生表面裂纹状况,归纳了热轧中厚板出现各种表面裂纹的原因,如铸坯原始纵裂纹延续性、残余有害元素、热装温度、微合金化元素形成碳氮化物析出行为及轧制压下量等。讨论了国内外学者对热轧中厚板表面裂纹的研究成果,分析目前研究中存在的不足之处,并进一步提出未来研究的重点与方向。
The research status of surface crack in microalloy steel medium and heavy plate domestic and overseas is introduced. A variety of reasons are summarized and analyzed, the influence of original slab cracks, residual harmful elements, hot charging temperature, carbonitride precipitation behavior resulting from microalloy elements, rolling reduction summed up. The problems existing in microalloy steel medium and heavy plate was analyzed and put forward the orientation of the research in the future.
出处
《炼钢》
CAS
北大核心
2011年第4期74-78,共5页
Steelmaking
基金
国家自然科学基金资助项目(51074022)
关键词
微合金化钢
中厚板
表面裂纹
组织结构
析出物
mieroalloy steel
medium and heavy plate
surface crack
crystal structure
precipitation
