Precipitation and control of BN inclusions in 42CrMo steel and their effect on machinability

被引：0
|
作者：
Yu-nan Wang
Yan-ping Bao
Min Wang
Le-chen Zhang
机构：
[1] University of Science and Technology Beijing,State Key Laboratory of Advanced Metallurgy
[2] University of Science and Technology Beijing,School of Metallurgical and Ecological Engineering
[3] University of Science and Technology Beijing,National Engineering Research Center of Flat Rolling Equipment
来源：
International Journal of Minerals, Metallurgy, and Materials | 2013年 / 20卷
关键词：
steel; inclusions; boron nitrogen; precipitation; machinability;
D O I：
暂无
中图分类号：
学科分类号：
摘要：
The precipitation and control of boron nitrogen (BN) inclusions in 42CrMo steel were investigated and their effect on machinability was analyzed. First, the precipitation regularity of BN in 42CrMo steel was studied by theoretical calculation. Then, the machinability of the steel was investigated through contrast cutting experiments, and the composition and cooling rate of the steel were controlled to analyze the variation laws of the size, distribution, and area ratio of BN inclusions. Finally, the results were combined with the machinability of the steel to analyze the relationship among them. It is found that the machinability of the steel is mainly influenced by the diameter and quantity of BN inclusions. Fine and dispersedly distributed BN inclusions are more beneficial for the improvement in machinability of 42CrMo steel than coarse and sparse BN inclusions.
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页码：842 / 849
页数：7
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