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Review of Titanium Alloy Plate Rolling Technology (Part 2)——Plate Forming Technology |
ZHANG Zhixin1, 2, TANG Bin1, 2, 3, LI Ruifeng1, FAN Jiangkun3, PENG Cheng2, LIU Chuan1, 2, LI Jinshan1, 2, 3 |
1. Chongqing Innovation Center, Northwestern Polytechnical University, Chongqing 401120, China;
2. Chongqing Sanhang Advanced Materials Research Institute Co., Ltd, Chongqing 401120, China;
3. State Key Laboratory of Solidification Processing, Northwestern Polytechnical University, Xi’an 710072, China |
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Abstract In this paper, the forming technology of titanium alloy plate was summarized, the control points of the rolling process of titanium alloy plate with different structure types (equiaxed structure, full lamellar, basket wave structure) were summarized, the present situation and problems of the forming technology of titanium alloy plate were analyzed, and the solutions are given. By combing the forming technology of near α titanium alloy, α + β titanium alloy and β titanium alloy, the microstructure and texture characteristics of rolling process of plate were analyzed, and the mechanical properties of plate with different microstructure types were compared. The control methods of precipitation, microstructure, texture and properties of titanium alloy plate were proposed, and the key control points of forming technology of titanium alloy plate were expounded. The existing problems of titanium alloy plate products, including warp degree problem, large residual stress, the instability of ultrasonic inspection level and so on, were analyzed, and specific solutions were given. Finally, three research priorities and two development directions of domestic titanium alloy sheet and plate forming technology were prospected in order to promote the specific manufacturing of key products and the standard operation level of conventional products of titanium alloy sheet and plate.
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