LIU, X. ., C. . MAO, M. WU, W. CAI, M. DAI, and J. HU. “EFFECT OF SALT BATH NITRIDING TIME ON THE PERFORMANCES OF 304 STAINLESS STEEL”. Acta Metallurgica Slovaca, vol. 26, no. 1, Mar. 2020, pp. 4-6, doi:10.36547/ams.26.1.458.