METALS AND METAL MATRIX COMPOSITES |
|
|
|
|
|
Research Progress on Welding Crack Control of TiAl Alloy |
CHEN Guoqing, ZHANG Ge, YIN Qianxing, ZHANG Binggang, FENG Jicai
|
State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology, Harbin 150001, China |
|
|
Abstract The new generation of aerospace engines pursues lightweight and high performance. A large number of new materials and dissimilar materials are selected in the process of engine design and manufacture. TiAl alloy, a high temperature structural material with lightweight and high strength, has gradually entered people’s vision. And it has attracted extensive attention in high-tech fields such as aerospace, due to its excellent high-temperature performance and oxidation resistance. It can be predicted that TiAl alloy will become an important engineering material. Thus, it is urgent to investigate the welding technology of TiAl alloy and promote its industrial application. Though, TiAl alloy has prominent high temperature property, it has poor plasticity at room temperature. It is prone to cracks during the welding process, which is particularly severe in fusion welding. As TiAl alloy is a brittle material, the microstructure of the joint is easy to be hardened, during the rapid heating and cooling process. On the other hand, a high thermal stress is accumulated in the joint, causing it to crack. Considering the poor plasticity of TiAl alloy, control of welding crack of TiAl alloy has become the keystone of corresponding research. At pre-sent, the control methods of welding crack mainly include: design of solder composition, alternating nanometric layers, welding with high current, design of metallic interlayers, preheating and post-weld heat treatment, etc. Design of solder composition, alternating nanometric layers and design of metallic interlayers are usually used for non-fusion welding, such as brazing and diffusion bonding. They can decrease the residual stress and reduce the formation of brittle phases. But the mechanical properties of the joint is severely effcted by the intermediate metal. Welding with high current, preheating and post-heat treatment are mostly used for fusion welding of TiAl alloy. The high heat input and long temperature dwell time are benefit for the microstructure transformation of brittle phases and release of high residual stress of the joint. But they can also introduce the coarsen of grains of the joint, which requires further optimization of the welding process. In this paper, the causes of cracking and research progress of crack control are introduced. The application scope and characteristics of diffe-rent crack control methods are analyzed to establish the relationship between microstructure and mechanical properties of the joint. Finally, suggestions for future research about welding of TiAl alloy are proposed.
|
Published: 16 January 2020
|
|
About author:: Guoqing Chen, an associate professor in the State Key Laboratory of Advanced Welding and Joining, Harbin Institute of Technology. His research interests are Electron beam additive manufacturing, electron beam wel-ding of new materials and dissimilar materials. He earned a State Technological Invention Award second prize and a second prize of natural science award of Heilongjiang province. He has published about 60 scientific papers in journals and more than 30 patents granted. |
|
|
1 Yamaguchi M, Inui H, Ito K. Acta Materialia, 2000, 48(1),307. 2 Leyens C, Peters M. Titanium and titanium alloys, Chemical Industry Press, China, 2005(in Chinese). Leyens C, Peters M. 钛与钛合金, 化学工业出版社, 2005. 3 Zhang B G, Feng J C, Wu L, et al. Welding & Joinning, 2004(5), 14(in Chinese). 张秉刚, 冯吉才, 吴林,等.焊接, 2004(5), 14. 4 Zghal S, Thomas M, Naka S, et al. Acta Materialia, 2005, 53(9), 2653. 5 Liu J F, Zhu Y, Kang H, et al. Welding & Joinning, 2004(2), 34(in Chinese). 刘景峰, 朱颖, 康慧,等.焊接, 2004(2), 34. 6 Erdely P, Staron P, Maawad E, et al. Materials & Design, 2017, 131, 286. 7 Huang X, Li Z X, Gao F, et al. Aeronautical Manufacturing Technology, 2014, 451(7), 70(in Chinese). 黄旭, 李臻熙, 高帆, 等.航空制造技术, 2014, 451(7),70. 8 Yang R.Acta Metallurgica Sinica, 2015, 51(2),129(in Chinese). 杨锐.金属学报, 2015, 51(2),129. 9 Arenas M F, Acoff V L. High Temperature Materials and Processes, 2004, 23(1),25. 10 Liu J, Dahmen M, Ventzke V, et al.Intermetallics, 2013, 40,65. 11 Cai X, Sun D, Li H, et al.Optics & Laser Technology, 2017, 97,42. 12 Arenas M F, Acoff V L.Scripta Materialia, 2002, 46(3),241. 13 Ramos A S, Vieira M T, Vieira M F, et al. Materials Science Forum, 2006, 514,483. 14 Acoff V L, Wilkerson S, Arenas M.Materials Science and Engineering: A, 2002, 329, 763. 15 Chen G Q, Zhang B G, Liu W, et al.Transaction of the China Welding Institution, 2010(1), 1(in Chinese). 陈国庆, 张秉刚, 刘伟, 等.焊接学报, 2010(1), 1. 16 Chaturvedi M C, Xu Q, Richards N L. Journal of Materials Processing Technology, 2001, 118(1-3),74. 17 Cao J, Li C, Qi J, et al. Composites Science and Technology, 2015, 115,72. 18 Dong H, Yang Z, Yang G, et al.Materials Science and Engineering: A, 2013, 561,252. 19 Saida K, Ohnishi H, Nishimoto K.Welding in the World, 2015, 59(1),9. 20 Li L, Li X, Li Z, et al.Advanced Engineering Materials, 2016, 18(2),341. 21 Cao J, He P, Wang M.Intermetallics, 2011, 19(7),855. 22 Song X G. Research on brazing process and mechanism of TiAl alloy to Si3N4 ceramic. Ph.D. Thesis, Harbin Institute of Technology, China, 2012(in Chinese). 宋晓国. TiAl合金与Si3N4陶瓷钎焊工艺及机理研究. 博士学位论文, 哈尔滨工业大学, 2012. 23 Mirski Z, Róz·ański M. Archives of Civil and Mechanical Engineering, 2013, 13(4),415. 24 Cao J, Dai X, Liu J, et al. Materials & Design, 2017, 121, 176. 25 Song X G, Si X Q, Cao J, et al. Rare Metal Materials and Engineering, 2018, 47(1), 52. 26 Ren H S, Xiong H P, Chen B, et al.Journal of Materials Processing Technology, 2015, 224, 26. 27 Duarte L I, Ramos A S, Vieira M F, et al.Intermetallics, 2006, 14(10-11), 1151. 28 Ustinov A I, Falchenko Y V, Ishchenko A Y, et al.Intermetallics, 2008, 16(8),1043. 29 Simoes S, Viana F, Ventzke V, et al.Journal of Materials Science, 2010, 45(16),4351. 30 Simoes S, Viana F, Kocak M, et al.Materials Chemistry & Physics, 2011, 128(1),202. 31 Bharani D J, Acoff V L.Metallurgical and Materials Transactions A, 1998, 29(13), 927. 32 Arenas M F, Acoff V L.Welding Journal, 2003, 82(5),110. 33 Nabavi A, Khaki J V. Surface and Interface Analysis, 2010, 42(4), 275. 34 Cao J, Feng J C, Li Z R.Scripta Materialia, 2007, 57(5), 421. 35 Feng G, Li Z, Zhou Z, et al. Materials & Design, 2016, 110,130. 36 Feng G, Li Z, Jacob R J, et al.Materials & Design, 2017, 126, 197. 37 Liu J, Dahmen M, Ventzke V, et al. Intermetallics, 2013, 40, 65. 38 Kuwahara G, Yamaguchi S, Nanri K, et al. In: High-Power Lasers in Manufacturing. Osaka, 2000, pp. 411. 39 Chaturvedi M C, Richards N L, Xu Q. Materials Science and Enginee-ring: A, 1997, 239,605. 40 Reisgen U, Olschok S, Backhaus A.Materialwissenschaft und Werkstofftechnik, 2010, 41(11), 897. 41 Chen G Q, Zhang B G, Liu W, et al. Intermetallics, 2011, 19(12),1857. 42 Li Y, Wang H, Han K, et al.Journal of Materials Processing Technology, 2017, 250,401. 43 Liu J, Ventzke V, Staron P, et al. Metallurgical and Materials Transactions A, 2014, 45(1),16. 44 Han K, Wang H, Zhang B, et al. Materials & Design, 2017, 131,273. |
|
|
|