Investigation of the Effect of Argon Arc Welding Parameters on Properties of Thin Plate of In Situ Titanium Matrix Composites

Abstract:

The weldability of in-situ titanium matrix composites (TMCs) was studied using the gas tungsten arc welding (GTAW). The effects of GTAW on the microstructure of fusion zone and heat-affected zone were discussed, and the changes of TiB whisker reinforcements in the welded joint were investigated by optical microscope (OM), scanning electron microscopy (SEM), XRD analysis and tension testing at room temperature. Research results show that the GTAW process is a suitable welding method for in-situ TMCs. Under reasonable welding parameters, the welded joints display goo weld seam formation, and TiB whiskers show distinctly smaller sizes and uniform distribution with a special network structure. The maximum tensile strength of welded joints can reach 92% of the base metal under optimum welding parameters.

• Periodical: Materials Science Forum (Volume 849)
• Pages: 436-442
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.849.436
• Online since: March 2016
• Authors: Jian Wei Mao, Yuan Fei Han, Wei Jie Lu*, Li Qiang Wang
• Keywords: Argon Arc Welding, Mechanical Properties, Titanium Matrix Composites, Whisker Reinforced

References

[1] S.C. Tjong, Y.W. Mai, Processing-structure-property aspects of particulate- and whisker- reinforced titanium matrix composites, Compos Sci Techol, 68(2008) 583-601.

DOI: 10.1016/j.compscitech.2007.07.016

[2] A.M. Johnson, P.K. Wright. Applications of advanced materials to aircraft gas turbine engines. AIAA. (1990) 90-2281.

[3] W.J. Lu, D. Zhang, X.N. Zhang, R.J. Wu, H. Mori, Solidification paths and reinforcement morphologies in melt-processed (TiB+TiC)/Ti in Situ composites, Metall Mater Ttrans A, 33(2002) 3055-3063.

DOI: 10.1007/s11661-002-0290-3

[4] S. Gorsse, Y. L Petitcorps, S. Matar, F. Rebillat, Investigation of the Young's modulus of TiB needles in situ produced in titanium matrix composite, Mater Sci Eng A, 340(2003) 80-87.

DOI: 10.1016/s0921-5093(02)00188-0

[5] S.C. Tjong, G. Wang, Cyclic Deformation Characteristics of Titanium-Matrix Composite Reinforced with In-situ TiB Whiskers, Adv Engg Mater, 7(2005) 63-68.

DOI: 10.1002/adem.200400129

[6] G.G. Chernyshov, S.A. Panichenko, T.A. Chernyshova. Welding of metal composites. Welding of International. 17(2003) 487-492.

DOI: 10.1533/wint.2003.3155

[7] Z.G. Zhang, J.N. Qin, Z.W. Zhang, Y.F. Chen, W.J. Lu, Microstructure effect on mechanical properties of in situ synthesized titanium matrix composites reinforced with TiB and La2O3. Mater Lett, 64(2010) 361-363.

DOI: 10.1016/j.matlet.2009.11.019

[8] A.B. Short, Gas tungsten arc welding of a+b titanium alloys: a review, Mater Sci Technol, 25(2009), 309-324.

[9] K. Geng, W.J. Lu, D. Zhang, Microstructure and tensile properties of in situ synthesized (TiB+Y2O3)/Ti composites at elevated temperature, Mater Sci Engg A, 360(2003) 176-182.

DOI: 10.1016/s0921-5093(03)00437-4

[10] R.K. Learya, E. Mersonb, K. Birmingham, Microstructural and microtextural analysis of Inter-Pulse GTCAW welds in Cp-Ti and Ti-6Al-4V, Mater Sci Engg A, 527(2010) 7694-7705.

DOI: 10.1016/j.msea.2010.08.036

[11] J. W Mao, M.M. Wang, L.Q. Wang, X.B. Xue, W.J. Lu, X.J. Sun, X.X. Zhu. Weld zone characteristic and mechanical performance of in situ titanium matrix composites using gas tungsten arc welding (GTAW), Sci Technol Weld Joi. (2012) 17: 630-5.

DOI: 10.1179/1362171812y.0000000054

[12] L.J. Huang, L. Geng, H.X. Peng, B. Kaveendran, High temperature tensile properties of in situ TiBw/Ti6Al4V composites with novel network reinforcement architecture, Mater Sci Eng A, 534(2012) 688-692.

DOI: 10.1016/j.msea.2011.12.028

[13] X.H. Wang, J.T. Niu, S.K. Guan, L.J. Wang, D.F. Cheng, Investigation on TIG welding of SiCp-reinforced aluminum-matrix composite using mixed shielding gas and Al-Si filler, Mater Sci Eng A, 499(2009) 106-110.

DOI: 10.1016/j.msea.2008.07.037

[14] Norrish J. Advanced welding processes: technologies and process control, WP Ltd, England, (2006).

[15] C.V. Goncalves, L.O. Vilarinho, A. Scotti, G. Guimaraes. Estimation of heat source and thermal efficiency in GTAW process by using inverse techniques, J Materi Process Technol, 172(2006) 42-51.

DOI: 10.1016/j.jmatprotec.2005.08.010

[16] C.L. Zhang, F.T. Kong, S.L. Xiao, E.T. Zhao, L.J. Xu, Y.Y. Chen, Evolution of microstructure and tensile properties of in situ titanium matrix composites with volume fraction of (TiB+TiC) reinforcements. Mater Sci Eng A, 548(2012) 152-60.

DOI: 10.1016/j.msea.2012.04.004