Study on the Microstructure and Mechanical Properties of Deep Penetration TIG Welded Joints of New Marine TA3 Titanium Alloy

WANG Yanlong; CAO Xuwu; DING Zhengxiang; YAN Dejun; PENG Weihua

doi:10.7512/j.issn.1001-2303.2024.12.09

Shipping Advanced Welding Manufacturing Technology | Views : 0 下载量: 5 CSCD: 0

PDF
Export
Share
Collection
Album

Study on the Microstructure and Mechanical Properties of Deep Penetration TIG Welded Joints of New Marine TA3 Titanium Alloy
Vol. 54, Issue 12, Pages: 56-61(2024)
Published： 25 December 2024 ，
DOI： 10.7512/j.issn.1001-2303.2024.12.09
稿件说明：

移动端阅览

王彦龙，曹旭武，丁正祥，等.船用新型TA3钛合金深熔TIG焊接头组织与力学性能研究［J］.电焊机，2024，54（12）：56-61.

WANG Yanlong, CAO Xuwu, DING Zhengxiang, et al.Study on the Microstructure and Mechanical Properties of Deep Penetration TIG Welded Joints of New Marine TA3 Titanium Alloy[J].Electric Welding Machine, 2024, 54(12): 56-61.
王彦龙，曹旭武，丁正祥，等.船用新型TA3钛合金深熔TIG焊接头组织与力学性能研究［J］.电焊机，2024，54（12）：56-61. DOI： 10.7512/j.issn.1001-2303.2024.12.09.

WANG Yanlong, CAO Xuwu, DING Zhengxiang, et al.Study on the Microstructure and Mechanical Properties of Deep Penetration TIG Welded Joints of New Marine TA3 Titanium Alloy[J].Electric Welding Machine, 2024, 54(12): 56-61. DOI： 10.7512/j.issn.1001-2303.2024.12.09.

摘要

为了解决船用新型TA3钛板对接缝的无坡口单面焊双面成形与自动化高速焊接问题，研制了具备激光焊缝跟踪与柔性压紧等功能集成的

自动深熔TIG焊接压力架装置，并采用高效自动深熔TIG焊接工艺对TA3钛板进行平对接，通过外观检查、渗透检测、X射线探伤、金相组织分析等方法对焊接接头的表面质量、宏观形貌、显微组织和力学性能进行表征。结果表明：焊缝表面与热影响区呈现银白色，焊缝表面无缺陷，焊缝成形良好，完全焊透，无咬边、裂纹和未熔合等缺陷。母材与热影响区均为等轴α相组织，熔合区与焊缝中心均为片状和针状α相组织，晶粒致密均匀，具有强化断裂韧性与阻碍裂纹衍生扩展的作用，接头抗拉强度超出母材抗拉强度的2.4%以上，接头的疲劳循环寿命大于10

次，力学性能良好；焊接速度突破了0.4 m/min以上，为船用新型TA3钛质结构的高效生产与质量保障提供了新型解决方案。

Abstract

In order to solve the problems of single-sided welding and double-sided forming without groove and automatic high-speed welding of the new TA3 titanium plate joints for ships

an automatic deep penetration TIG welding pressure frame device with integrated functions such as laser seam tracking and flexible clamping was developed. The TA3 titanium plate was flat-welded using a high-efficiency automatic deep penetration TIG welding process. The surface quality

macroscopic morphology

microstructure

and mechanical properties of the welded joints were characterized by appearance inspection

penetrant testing

X-ray flaw detection

and metallographic analysis. The results show that the weld surface and heat-affected zone are silver-white in color

with no defects on the weld surface

good weld formation

complete penetration

and no undercut

cracks

or lack of fusion defects. Both the base metal and the heat-affected zone have equiaxed α-phase structures

while the fusion zone and the center of the weld seam have lamellar and acicular α-phase structures

with dense and uniform grains

which have the effect of strengthening fracture toughness and hindering crack propagation. The tensile strength of the joint exceeds the tensile strength of the base metal by more than 2.4%

and the fatigue life of the joint is greater than 10

cycles

with good mechanical properties. The welding speed has broken through 0.4 m/min

providing a new solution for the efficient production and quality assurance of new TA3 titanium structures for ships.

关键词

船用新型TA3钛合金深熔TIG焊接头组织力学性能

Keywords

new TA3 Titanium alloy for shipsdeep TIG weldingjoint structuremechanical properties

references

陈凤林，葛可可，侯春明. 舰船用钛合金焊接技术进展［J］. 电焊机，2019，49（08）：60-65.

CHEN F L，GE K K，HOU C M. Progress in welding technology of titanium alloy for naval vessels［J］. Electric Welding Machine，2019，49（08）：60-65.

李永华，张文旭，陈小龙，等. 海洋工程用钛合金研究与应用现状［J］. 钛工业进展，2022，39（01）：43-48.

LI Y H，ZHANG W X，CHEN X L，et al. Research and Application Status of Titanium Alloys for Marine Engineering［J］. Titanium Industry Progress，2022，39（01）：43-48.

刘自刚，梅亚泽，张建峰，等. 深熔TIG焊研究现状与展望［J］. 热加工工艺，2023，52（01）：6-11.

LIU Z G，MEI Y Z，ZHANG J F，et al. Research Status and Prospect of Deep Penetration TIG Welding［J］. Hot Working Technology，2023，52（01）：6-11.

张抱日，顾盛勇，石永华. 基于焊缝熔透检测的机器人深熔K-TIG焊接系统［J］. 机械工程学报，2019，55（17）：14-21.

ZHANG B R，GU S Y，SHI Y H. Robotic Deep Penetration K-TIG Welding System Based on Weld Penetration Detection［J］. Journal of Mechanical Engineering，2019，55（17）：14-21.

张瑞华，栗海霞，李明，等. K-TIG焊接电弧特性的数值分析［J］. 电焊机，2012，42（12）：7-11.

ZHANG R H，LI H X，LI M，et al. Numerical analysis on keyhole gas tungsten arc welding［J］. Electric Welding Machine，2012，42（12）：7-11.

韩涛，谷世伟，徐良，等. K-TIG焊接接头的应力与变形［J］. 焊接学报，2019，40（11）：125-132+166-167.

HAN T，GU S W，XU L，et al. Study on stress and deformation of K-TIG welded joint［J］. Transactions of the China Welding Institution，2019，40（11）：125-132+166-167.

黄逸飞，罗震，敖三三，等. 基于非对称热源的异种钢深熔TIG焊接数值模拟［J］. 机械工程学报，2018，54（02）：41-47.

HUANG Y F，LUO Z，AO S S，et al. Numerical Simulation of Keyhole TIG Welding of Dissimilar Steels Based on Asymmetric Heat Source［J］. Journal of Mechanical Engineering，2018，54（02）：41-47.

冯涛，吕祚翔，刘俊，等. 15-5PH钢K-TIG焊熔池流动行为分析［J］. 焊接学报，2021，42（08）：91-96+102.

FENG T，LV Z X，LIU J，et al. Analysis of flow behavior in K-TIG molten pool of 15-5PH steel［J］. Transactions of the China Welding Institution，2021，42（08）：91-96+102.

徐良，欧阳凯，杨海锋. K-TIG焊接动态过程及组织和性能分析［J］. 焊接学报，2020，41（08）：68-72+101.

XU L，OUYANG K，YANG H F，et al. Study on K-TIG welding process and properties of Q235 steel［J］. Transactions of the China Welding Institution，2020，41（08）：68-72+101.

梁斌，崔延鑫，石永华，等. 深熔K-TIG焊接过程的声信号采集及特征分析［J］. 电焊机，2018，48（10）：94-97.

LIANG B，CUI Y X，SHI Y H，et al. Acoustic signal acquisition and analysis of high penetration of K-TIG welding［J］. Electric Welding Machine，2018，48（10）：94-97.

Przemysław Z，Michał K，Paweł K，et al. Microstructure and Mechanical Properties of Welded Joints of 1.4462 Duplex Steel Made by the K-TIG Method［J］.Materials，2021，14（24）：7868-7868.

石永华，宁强，崔延鑫. Q345R钢纵向磁场辅助K-TIG焊接接头组织和性能研究［J］. 电焊机，2020，50（09）：87-91.

SHI Y H，NING Q，CUI Y X. Microstructure and property of K-TIG welded jointsbased on external longitudinal magnetic fields for Q345 steel［J］. Electric Welding Machine，2020，50（09）：87-91.

欧阳凯，刘文明，鲍亮亮，等. Q235钢K-TIG焊接小孔稳定性及接头组织性能研究［J/OL］. 热加工工艺，1-5［2024-04-18］.

OUYANG K，LIU W M，BAO L L，et al. Study on Stability of Keyhole and Microstructure and Properties of Q235 Steel K-TIG Welding Joint［J/OL］. Hot Working Technology，1-5［2024-04-18］.

王晓军，杨健，周栋，等. Q345/316L异种钢K-TIG焊接接头的组织及性能［J］. 电焊机，2021，51（01）：66-72+121.

WANG X J，YANG J，ZHOU D，et al. Microstructure and properties of K-TIG welded joint of Q345/316L dissimilar steel［J］. Electric Welding Machine，2021，51（01）：66-72+121.

樊文飞，罗震，冯悦峤，等. 低合金钢Q345的深熔TIG焊研究［J］. 上海交通大学学报，2016，50（S1）：102- 105.

FAN W F，LUO Z，FENG Y Q，et al. Study on the deep penetration tig welding of q345 steel［J］. Journal of Shanghai JiaoTong University，2016，50（S1）：102-105.

CUI S W，SHI Y H，ZHANG C S. Microstructure and mechanical properties of TC4 titanium alloy K-TIG welded joints［J］. Transactions of Nonferrous Metals Society of China，2021，31（02）：416-425.

任冠鹏，杨青云，徐家磊，等. Gr.12钛合金K-TIG焊接接头的组织和力学性能研究［J］. 热加工工艺，2022，51（21）：131-133+143.

REN G P，YANG Q Y，XU J L，et al. Microstructure and Mechanical Properties of Gr.12 Titanium Alloy K-TIG Welded Joints［J］. Hot Working Technology，2022，51（21）：131-133+143.

Li Y，Li Y B，Liu Q，et al. Development and Numerical Simulation on Heat Source of K-TIG Deep Penetration Welding for Titanium Alloy［J］. Rare Metal Materials and Engineering，2024，53（03）：692-700.

Alert me when the article has been cited

提交

Research on the Microstructure and Properties of Semi-Automatic TIG Arc Welding and Brazing Joints of Copper Tubes

Influence of Welding Tool Offset on the Morphology and Mechanical Properties of Biaxial Shoulder Friction Stir Welding S-line

Study on the Pulse MAG Welding Process and Joint Microstructure Properties of Large Container Support Frame ZQ460 High-Strength Steel

Study on the Microstructure and Properties of High Nitrogen Steel Manufactured by Laser additive Technology with Coaxial Wire Feeding

Influence of Alloying Elements on the Microstructure and Properties of Cu-Ni based Fusion Cladding Layers