Why do cracks occur in the weld joint of Ti-22Al-25Nb alloy during post-weld heat treatment?

被引：86

作者：

Shao, Ling ^{[1
,2
,3
]}

Zhang, Xinyu ^{[1
]}

Chen, Yingwei ^{[2
]}

Zhu, Liu ^{[1
,3
]}

Wu, Sujun ^{[4
]}

Liu, Qijie ^{[2
]}

Li, Weiwei ^{[1
,3
]}

Xue, Na ^{[1
,3
]}

Tu, Zhibiao ^{[1
,3
]}

Wang, Tianle ^{[1
]}

Zhang, Jitang ^{[1
,3
]}

Dai, Sheng ^{[1
,3
]}

Shi, Xinxing ^{[1
]}

Chen, Mengliang ^{[5
]}

机构：

[1] Taizhou Univ, Zhejiang Prov Key Lab Cutting Tools, Taizhou, Peoples R China

[2] Zhejiang Univ Taizhou, Taizhou Key Lab Med Devices & Adv Mat, Res Inst, Taizhou, Peoples R China

[3] Taizhou Clean Carbon Technol Co Ltd, Taizhou, Peoples R China

[4] Beihang Univ, Sch Mat Sci & Engn, Beijing, Peoples R China

[5] Zhejiang Sci Tech Univ, Sch Mat Sci & Engn, Hangzhou, Peoples R China

来源：

FRONTIERS IN MATERIALS | 2023年 / 10卷

基金：

中国国家自然科学基金;

关键词：

Ti-22Al-25Nb alloy; weld joint; post-weld heat treatment; in situ nanoindentation; phase transition stress; MECHANICAL-PROPERTIES; AT.PERCENT ALLOY; MICROSTRUCTURE; DIFFRACTION; NANOINDENTATION; EVOLUTION; POLYMERS; BEHAVIOR; HARDNESS; STRESS;

D O I：

10.3389/fmats.2023.1135407

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Ultrasonic pulse frequency tungsten inert gas welding technology was adopted to join Ti-22Al-25Nb alloy. There were some cracks in the Ti-22Al-25Nb alloy weld joint after post-weld heat treatment. The hardness and Young's modulus of alpha(2), O, and beta/B2 phases in Ti-22Al-25Nb alloy were examined with an in situ nanoindentation technique. The phase transition stresses of three different phases in the weld joint of Ti-22Al-25Nb alloy were analyzed to explain why cracks occur in the weld joint of Ti-22Al-25Nb alloy during post- weld heat treatment. The results show that mean hardness is highest for the alpha(2) phase, second-highest for the O phase, and lowest for the beta/B2 phase; the mean Young's modulus has the same trend in Ti-22Al-25Nb alloy. Phase transition stress results in cracks in the weld joint of Ti-22Al-25Nb alloy during post- weld heat treatment. By improving post- weld heat treatment, the ultimate strength of the Ti-22Al- 25Nb alloy weld joints reaches 750 MPa, which is 72.5% that of the base material.

引用

页数：7

共 42 条

[1] Transient liquid phase (TLP) bonding of Ti2AlNb alloy using Ti/Ni interlayer: Microstructure characterization and mechanical properties [J].

Cai, X. Q. ;

Wang, Y. ;

Yang, Z. W. ;

Wang, D. P. ;

Liu, Y. C. .

JOURNAL OF ALLOYS AND COMPOUNDS, 2016, 679 :9-17

[2] Mechanical properties of intermetallic phases in multi-component Al-Si alloys using nanoindentation [J].

Chen, C. -L. ;

Richter, A. ;

Thomson, R. C. .

INTERMETALLICS, 2009, 17 (08) :634-641

[3] The effect of annealing on microstructure and tensile properties of Ti-22Al-25Nb electron beam weld joint [J].

Chen, W. ;

Chen, Z. Y. ;

Wu, C. C. ;

Li, J. W. ;

Tang, Z. Y. ;

Wang, Q. J. .

INTERMETALLICS, 2016, 75 :8-14

[4] Hot corrosion behavior of three different zones of linear friction welded Ti-22Al-25Nb alloy [J].

Chen, Xi ;

Xie, Faqin ;

Ma, Tiejun ;

Li, Wenya ;

Wu, Xiangqing .

MATERIALS AND CORROSION-WERKSTOFFE UND KORROSION, 2019, 70 (04) :612-622

[5] Grain Growth Orientation and Anisotropy in Cu6Sn5 Intermetallic: Nanoindentation and Electron Backscatter Diffraction Analysis [J].

Choudhury, Soud Farhan ;

Ladani, Leila .

JOURNAL OF ELECTRONIC MATERIALS, 2014, 43 (04) :996-1004

[6] Characterization of the interfacial-microstructure evolution and void shrinkage of Ti-22A1-25Nb orthorhombic alloy with different surface roughness during diffusion bonding [J].

Chu, Yudong ;

Li, Jinshan ;

Zhu, Lei ;

Tang, Bin ;

Kou, Hongchao .

INTERMETALLICS, 2017, 90 :119-127

[7] Extraction of Anisotropic Mechanical Properties From Nanoindentation of SiC-6H Single Crystals [J].

Datye, Amit ;

Li, Lin ;

Zhang, Wei ;

Wei, Yujie ;

Gao, Yanfei ;

Pharr, George M. .

JOURNAL OF APPLIED MECHANICS-TRANSACTIONS OF THE ASME, 2016, 83 (09)

[8] Melt convection and macrosegregation in the vacuum arc remelted Ti2AlNb ingot: Numerical methods and experimental verification [J].

Han, Jingjing ;

Ren, Neng ;

Zhou, Yi ;

Zhang, Ruiyao ;

Li, Jun ;

Huang, Xu ;

Li, Jinfu .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2022, 308

[9] An attempt to determine the true stress-strain curves of amorphous polymers by nanoindentation [J].

Hochstetter, G ;

Jimenez, A ;

Cano, JP ;

Felder, E .

TRIBOLOGY INTERNATIONAL, 2003, 36 (12) :973-985

[10] Strain-rate effects on hardness of glassy polymers in the nanoscale range. Comparison between quasi-static and continuous stiffness measurements [J].

Hochstetter, G ;

Jimenez, A ;

Loubet, JL .

JOURNAL OF MACROMOLECULAR SCIENCE-PHYSICS, 1999, B38 (5-6) :681-692

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