摘要
采用SEM、EDS能谱仪、金相显微镜对3003合金热轧过程中在厚度方向上产生的贯穿性开裂孔洞进行了分析。开裂的主要原因是铸锭局部存在粗大硬质相,在变形过程中在硬质相上形成应力集中,硬质相破碎形成裂纹。根据开裂原因提出了对铸锭进行610℃×6 h均匀化的改进预防措施。
The perforative cracking holes(in the direction of thickness)of 3003 alloy during hot rolling were analyzed by means of SEM,EDS and metallographic microscope.The results show that the main reason for cracking is that the coarse hard phase exists in the ingot,and causes the stress concentration during deformation,finally the hard phase breaks to form a crack.According to the cause of cracking,the process improvement and preventive measures of 610℃×6 h homogenization treatment was put forward.
作者
李广钦
翟德斌
王继成
魏长传
LI Guangqin;ZHAI Debin;WANG Jicheng;WEI Changchuan(Hexing Aeronautical Materials(Tianjin)Technology Co.,Ltd.,Tianjin 300300,China)
出处
《热加工工艺》
北大核心
2023年第7期160-162,共3页
Hot Working Technology
关键词
3003合金
热轧
开裂
硬质相
均匀化
3003 alloy
hot rolling
cracking
hard phase
homogenization