材料期刊网

Effects of Nitrogen on the Glass Formation and Mechanical Properties of a Ti-Based Metallic Glass

Di Cao , Yuan Wu , Hui Wang , Xiong-Jun Liu , Z. P. Lu

金属学报(英文版) doi:10.1007/s40195-016-0374-5

Effects of nitrogen addition on glass formation and mechanical properties of the Ti_42.5Cu₄₀Zr₁₀Ni₅Sn_2.5metallic glass were systematically investigated. It was found that a small amount of nitrogen addition facilitated the glass formation by suppressing formation of the competing eutectic structure. Unlike large atomic size elements such as Hf and Pd which usually deteriorate specific strength, nitrogen can also increase the specific strength of the current Ti-based BMGs. The results are not only helpful for understanding glass-forming ability in general, but also useful in developing cost-effective, high-performance Ti-based bulk metallic glasses with enhanced glass-forming ability.

关键词: Metallic , glass , Glass-forming , ability , Microalloying , Specific , strength