[1]薛添淇,闫少帅,张 敏,等.TC32钛合金TIG焊接接头显微组织及力学性能研究[J].焊管,2024,47(2):70-78.[doi:10.19291/j.cnki.1001-3938.2024.02.011]
　XUE Tianqi,YAN Shaoshuai,ZHANG Min,et al.Study on Microstructure and Mechanical Properties of TIG Welded Joint of TC32 Titanium Alloy[J].,2024,47(2):70-78.[doi:10.19291/j.cnki.1001-3938.2024.02.011]
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TC32钛合金TIG焊接接头显微组织及力学性能研究()
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《焊管》[ISSN:1001-3938/CN:61-1160/TE]

卷:
47
期数:
2024年第2期
页码:
70-78
栏目:
性能表征
出版日期:
2024-02-29

文章信息/Info

Title:
Study on Microstructure and Mechanical Properties of TIG Welded Joint of TC32 Titanium Alloy
文章编号:
10.19291/j.cnki.1001-3938.2024.02.011
作者:
薛添淇; 闫少帅; 张 敏; 王新宝; 程 龙; 毛 威
西安理工大学 材料科学与工程学院，西安 710048
Author(s):
XUE Tianqi;  YAN Shaoshuai;  ZHANG Min;  WANG Xinbao;  CHENG Long;  MAO Wei
Xi’an University of Technology, School of Materials Science and Engineering, Xi’an 710048, China
关键词:
TC32钛合金; TIG焊接; 填充材料; 显微组织; 力学性能
Keywords:
TC32 titanium alloy;  TIG welding;  filling materials;  microstructure;  mechanical properties
分类号:
TG113.263
DOI:
10.19291/j.cnki.1001-3938.2024.02.011
文献标志码:
A
摘要:
利用不同成分的填充材料对 TC32 进行 TIG 焊接试验，分析接头不同区域的显微组织和力学性能。结果表明，采用 TC4 实心焊丝、TC32 药芯焊丝和 Ti-Al-V-Zr 系药芯焊丝所获的焊接接头组织均不同，焊缝区宏观形貌均由上中部柱状晶区和下部等轴晶区组成，热影响区均出现三个不同的亚区；三种焊接接头的热影响区硬度显著高于母材，且每组接头的显微硬度在上、中、下区域有相同变化趋势；在焊态条件下，接头的抗拉强度与母材相当，但塑性较差。研究表明，药芯焊丝与实心焊丝相比较，药芯焊丝更容易产生气孔缺陷，导致接头的强度和韧性降低。
Abstract:
TIG welding test of TC32 was carried out by using different filler materials, and the microstructure and mechanical properties of different areas of the joint were analyzed. Results show that the microstructure of welded joints obtained by using TC4 solid welding wire, TC32 flux cored welding wire, and Ti-Al-V-Zr flux cored welding wire is different. The weld zone can be divided into the upper columnar zone and the lower equiaxed zone macroscopically. There are three different sub zones in the heataffected zone. The hardness of the three welded joints in the heataffected zone is significantly higher than that of the base metal, and the microhardness of each group of joints has the same change trend in the upper, middle and lower regions. Under welding, the strength of the joint is equivalent to that of the base metal, but its plasticity is poor. Compared with solid welding wire, flux cored welding wire is more prone to porosity defects, resulting in a decrease in the strength and toughness of the joint.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期：2023-11-06
基金项目：陕西省重点研发计划（秦创原“科学家+工程师”队伍建设项目）“航空航天用高品质钛基钎料的设计开发与应用”（项目编号2023KXJ-234）；西安市科技计划项目（秦创原“科学家+工程师”队伍建设项目）“重点装备用高性能稀贵金属膏状钎料的设计开发及工程化”（项目编号23KGDW0004-2022）
作者简介：薛添淇 （2000—），男，硕士，主要从事钛合金管材对接焊研究及高熵合金涂层制备设计。
更新日期/Last Update: 2024-03-07