Effect of microelement Zr on the property and microstructure of Mo alloy

Abstract

Mo-Zr alloy were fabricated by powder metallurgy process, the effect of the adding forms of Zr and its content on the tensile property and microstructure of the alloy were studied. The results indicate that the addition of alloying element Zr obliviously enhance the mechanical property of Mo alloy. Mo-Zr alloy added with element Zr powder exhibits higher tensile strength than that with ZrH. The highest tensile strength value is achieved at 0.1wt% of Zr. The minority of Zr solve into the Mo matrix while most of Zr form ZrO particles due to reaction with oxygen in the Mo powder