摘要
通过化学成分分析、硬度测试、金相检验等方法对45钢模托开裂的原因进行了分析。结果表明:45钢模托开裂是因为原材料晶粒粗大,原材料壁厚中心存在组织缺陷和微裂纹,调质后组织和硬度的不均匀性导致的。
The cracking reason of mold prop of 45 steel was analyzed by means of chemical composition analysis, hardness testing, metallographic examination and so on. The results showed that the cracking in mold prop was caused by coarse grains of raw materials, microstructure defects and microcracks in the center of wall thickness of raw materials, and inhomogeneity of microstructure and hardness after quenching and tempering.
出处
《理化检验（物理分册）》
CAS
2013年第7期479-481,485,共4页
Physical Testing and Chemical Analysis(Part A:Physical Testing)
关键词
45钢模托
开裂
粗大晶粒
组织缺陷
微裂纹
不均匀性
mold prop of 45 steel
cracking
coarse grains
microstructure defects
microcrack
inhomogeneity
