Kharel, P., S. Sah, and J. Bhattarai. “Roles of Alloying Elements on the Passivity of W-XCr-YNi Alloys in Aggressive Environments”. Nepal Journal of Science and Technology, vol. 14, no. 2, May 2014, pp. 73-80, doi:10.3126/njst.v14i2.10418.