Effects of the Microstructure and Mechanical Properties on Ti6Al4V2Cr with Nd Element Additions

Ji-Yao LIU, Wen-Yan WANG, Ya-Bo HUANG, Hao-Yin ZHANG, Wen-Jun HUANG, Shi-Qin SHI, Jing-Pei XIE

Abstract


Titanium alloy in this experiment was prepared by powder metallurgy method, which could reduce the production cost and eliminate the composition segregation effect on titanium alloy. After heat treatment, microstructure and phase structure of the Ti-6Al-4V-2Cr-xNd was analyzed by microscope, XRD and TEM. The rare earth oxide particles dissolved out from the phase boundary and phase could purify matrix and fine grains, leading to the improvement of tensile strength and elongation by 10.7% and 49.1% respectively.

Keywords


Rare Earth, Phase Boundary, Fine Grains, Tensile Strength, Elongation


DOI
10.12783/dtetr/icmeca2017/11913

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