Research and prospect on mechanism of tissue evolution and property control of TC4 titanium alloy during hot rolling process
Taking TC4 titanium alloy as the research object.Firstly,based on the characteristics of rolled parts,TC4 titanium alloy prod-ucts were categorized into sheet/strip/foil materials and pipe/rod materials,and common processing techniques for these products were summarized.The effects of behaviors such as grain refinement,texture evolution and phase component redistribution on the microstructure of TC4 titanium alloy were comprehensive reviewed.By summarizing the effect of different hot rolling temperatures and deformation a-mounts on the microstructure of TC4 titanium alloy,the relevant parameters that exhibit good performance and microstructure compatibility were evaluated.Regarding the defects observed during the hot rolling of TC4 titanium alloy sheets,such as uneven deformation,cracking and instability in plastic flow,the mechanisms behind the formation of these defects were elucidated.Considering the significant role of numerical simulations in the thermal process forming of titanium alloys,the characteristics of numerical simulations for TC4 titanium alloy at different scales were analyzed.The development directions of hot rolling process and technology for TC4 titanium alloy were concluded.
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