工程科学学报2016，Vol.38Issue(z1)：45-49,5.DOI:10.13374/j.issn2095-9389.2016.s1.008
过热度对轴承钢内部组织的影响
Influence of superheat on internal structure of the bearing steel
逯志方 1张治广 2赵铮铮 1王伟 2李艳霞 1和洪杰 2王成杰1
作者信息
- 1. 邢台钢铁有限责任公司，邢台054027
- 2. 河北省线材工程技术研究中心，邢台054027
- 折叠
摘要
Abstract
The influence of superheat on internal structure of the bearing steel is researched by the macrostructure inspection tech-nology of dendrite corrosion and metallographic test method of bloom and wire with quenching and tempering heat treatment. The re-sults show that the equiaxed crystal ratio of the low superheat process increase. The secondary dendrite spacing decreases. Internal metallurgical defects such as segregation, shrinkage cavity improve. But there is little difference in the wire rod pickling macrostructure and carbide nonhomogeneity. Segregation control in the mixed crystal area is more serious than that in equiaxed crystal area. And there are a large numble of large size eutectic carbides.关键词
轴承钢/过热度/凝固组织/枝晶间距Key words
bearing steel/superheat/solidification structure/dendrite arm spacing分类
矿业与冶金引用本文复制引用
逯志方,张治广,赵铮铮,王伟,李艳霞,和洪杰,王成杰..过热度对轴承钢内部组织的影响[J].工程科学学报,2016,38(z1):45-49,5.
