Fine equiaxed β grains and superior tensile property in Ti-6Al-4V alloy deposited by coaxial electron beam wire feeding additive manufacturing
Jiahua Zhang1, Yi Yang1(
), Sheng Cao2, Zhiqiang Cao1, Dmytro Kovalchuk3, Songquan Wu1, Enquan Liang4, Xi Zhang4, Wei Chen5, Fan Wu5, Aijun Huang6
), Sheng Cao2, Zhiqiang Cao1, Dmytro Kovalchuk3, Songquan Wu1, Enquan Liang4, Xi Zhang4, Wei Chen5, Fan Wu5, Aijun Huang6
.
Fig. 6. EBSD orientation maps of β phase and α phase morphology in Y-Z section of 2-bead wall after three-stage heat treatment: a columnar β grain zone, b equiaxed β grain zone. a-1, b-1 the 2nd layer; a-2, b-2 the 18th layer; a-3, b-3 the 32th layer. The dashed lines indicate the original β grain boundaries. The insets are (001) pole figures of β grains
