Ya-nan, C., Yan-ping, B., Min, W., Xiao-feng, C., Lin-jinga, W. and Li-hua, Z. 2014. Basic research on mechanism of BN inclusion in improving the machinability of steel. Revista de Metalurgia. 50, 4 (Dec. 2014), e028. DOI:https://doi.org/10.3989/revmetalm.028.