包覆叠轧工艺对TC4钛合金板材组织与力学性能的影响

doi:10.13251/j.issn.0254-6051.2025.06.011

金属热处理 ›› 2025, Vol. 50 ›› Issue (6): 67-72.DOI: 10.13251/j.issn.0254-6051.2025.06.011

包覆叠轧工艺对TC4钛合金板材组织与力学性能的影响

解炜¹, 张明玉², 梁飞龙², 岳旭^2,3, 张天蔚⁴

1.西安汉唐分析检测有限公司, 陕西西安 710000;
2.新疆湘润新材料科技有限公司, 新疆哈密 839000;
3.中国科学院金属研究所师昌绪先进材料创新中心, 辽宁沈阳 110016;
4.大连交通大学机械工程学院, 辽宁大连 116028

收稿日期:2024-12-19 修回日期:2025-03-14 出版日期:2025-06-25 发布日期:2025-07-08
通讯作者: 张明玉,博士,E-mail: 251826123@qq.com
作者简介:解炜(1983—),男,工程师,主要研究方向为钛合金材料及加工,E-mail: 17977717@qq.com。
基金资助:
新疆维吾尔自治区重点研发计划(2022B01029)

Influence of pack ply-rolling process on microstructure and mechanical properties of TC4 titanium alloy sheet

Xie Wei¹, Zhang Mingyu², Liang Feilong², Yue Xu^2,3, Zhang Tianwei⁴

1. Xi'an Hantang Analysis and Detection Co., Ltd., Xi'an Shaanxi 710000, China;
2. Xinjiang Xiangrun New Materials Technology Co., Ltd., Hami Xinjiang 839000, China;
3. Shi Changxu Innovation Center for Advanced Materials, Institute of Metal Research, Chinese Academy of Sciences, Shenyang Liaoning 110016, China;
4. School of Mechanical Engineering, Dalian Jiaotong University, Dalian Liaoning 116028, China

Received:2024-12-19 Revised:2025-03-14 Online:2025-06-25 Published:2025-07-08

摘要/Abstract

摘要： 通过包覆叠轧工艺将TC4钛合金轧制成两种厚度(0.5、3.0 mm)的板材,研究包覆叠轧对TC4钛合金板材组织与性能的影响。结果表明,包覆叠轧TC4钛合金板材的组织主要由α相以及未完全消融的残留β相相互交织而成,残留β相分布于不同形貌的α相之间。包覆叠轧变形量较大时,0.5 mm厚板材强度较高,而3.0 mm厚板材塑性较高,但两种厚度板材的塑性整体差异化较小。包覆叠轧板材RD与TD方向强度之间均存在一定差值,TD方向强度较高,这是因为该方向的组织中存在明显的织构以及Schmid因子较小所导致。包覆叠轧两种厚度板材的断口形貌均为等轴状韧窝形貌,且在板材TD方向的还有部分空洞出现。

关键词: TC4钛合金, 包覆叠轧工艺, 微观组织, 拉伸性能

Abstract: TC4 titanium alloy was rolled into two kinds of thickness (0.5 mm and 3.0 mm) sheets by pack ply-rolling process, and the effect of pack ply-rolling on microstructure and properties of the TC4 titanium alloy sheet was studied. The results show that the microstructure of the TC4 titanium alloy sheet is mainly composed of α phase and residual β phase which is not completely melted, and the residual β phase is distributed between α phases with different morphologies. When the deformation of pack ply-rolling is large, the strength of 0.5 mm thick plate is higher. The plasticity of 3.0 mm thick sheet is higher, but the overall plasticity difference between the two thickness sheets is small. There is a certain strength difference between the RD and TD direction of the rolled sheet, and the strength along TD direction is higher, which is due to the obvious texture in the structure of this direction and the smaller Schmid factor. The fracture morphologies of the two kinds of thickness sheets are equiaxed dimples, and some voids appear in the TD direction of the sheet.

Key words: TC4 titanium alloy, pack ply-rolling, microstructure, tensile properties

中图分类号:

TG335.4

解炜, 张明玉, 梁飞龙, 岳旭, 张天蔚. 包覆叠轧工艺对TC4钛合金板材组织与力学性能的影响[J]. 金属热处理, 2025, 50(6): 67-72.

Xie Wei, Zhang Mingyu, Liang Feilong, Yue Xu, Zhang Tianwei. Influence of pack ply-rolling process on microstructure and mechanical properties of TC4 titanium alloy sheet[J]. Heat Treatment of Metals, 2025, 50(6): 67-72.

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包覆叠轧工艺对TC4钛合金板材组织与力学性能的影响

Influence of pack ply-rolling process on microstructure and mechanical properties of TC4 titanium alloy sheet

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