Modification of sulfide by Te in Y1Cr13 free-cutting stainless steel Xiangyu Wu, Liang-pin Wu, Jian-bo Xie, Ping Shen and Jian-xun Fu Metall. Res. Technol., 117 1 (2020) 107 Published online: 27 January 2020 DOI: 10.1051/metal/2019070