Numerical Simulation of Residual Stress in TC17 Titanium Alloy Welding and Local Heat Treatment

JIN Junlong; WAN Xiaohui; GUO Delun

doi:10.16080/j.issn1671–833x.2019.12.030

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Numerical Simulation of Residual Stress in TC17 Titanium Alloy Welding and Local Heat Treatment

更新时间：2025-10-30

- Numerical Simulation of Residual Stress in TC17 Titanium Alloy Welding and Local Heat Treatment
- Aeronautical Manufacturing Technology Vol. 62, Issue 12, Pages: 30-35(2019)
- 作者机构：
  
  中国航空制造技术研究院航空焊接与连接技术航空科技重点实验室,北京,100024
- 作者简介：
- 基金信息：
- DOI：10.16080/j.issn1671–833x.2019.12.030
  CLC：
- Published：2019
- 稿件说明：
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金俊龙，万晓慧，郭德伦. TC17钛合金焊接及局部热处理残余应力的数值模拟[J]. 航空制造技术, 2019, 62(12): 30-35.

JIN Junlong, WAN Xiaohui, GUO Delun. Numerical Simulation of Residual Stress in TC17 Titanium Alloy Welding and Local Heat Treatment. Aeronautical Manufacturing Technology, 2019, 62(12): 30-35.
金俊龙，万晓慧，郭德伦. TC17钛合金焊接及局部热处理残余应力的数值模拟[J]. 航空制造技术, 2019, 62(12): 30-35. DOI： 10.16080/j.issn1671–833x.2019.12.030.

JIN Junlong, WAN Xiaohui, GUO Delun. Numerical Simulation of Residual Stress in TC17 Titanium Alloy Welding and Local Heat Treatment. Aeronautical Manufacturing Technology, 2019, 62(12): 30-35. DOI： 10.16080/j.issn1671–833x.2019.12.030.

摘要

对TC17钛合金平板的氩弧焊焊接和焊后热处理过程进行了数值模拟，模型中考虑材料相变和蠕变，计算得到焊接和热处理过程中的温度场演变情况和热处理前后残余应力分布规律。结果表明，由于存在较大的热输入，焊后产生了较大的残余应力，焊缝附近的HAZ区域纵向残余拉应力达到了650MPa左右，热处理后降低至160MPa左右。采用小孔法和X 射线衍射仪测量了试件的残余应力，模拟计算得到的残余应力值与小孔法测试结果符合性较好。

Abstract

Numerical simulation of arc welding and post-weld heat treatment of TC17 titanium alloy plate was carried out

the phase transformation and creep of materials were considered in the model

evolution of temperature field during welding and heat treatment and the distribution of residual stress before and after heat treatment were obtained. Results show that

due to the large heat input

large residual stress is generated after welding

the longitudinal residual tensile stress in the HAZ zone near the welding seam reaches about 650MPa

and it decreases to about 160MPa after heat treatment. Residual stress was measured by blind-hole method and X–ray diffraction. The calculated residual stresses are in good agreement with the measured results of the blind-hole method.

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