Browse > Article
http://dx.doi.org/10.5781/JWJ.2017.35.1.68

Evaluation of the Laser Weldability of Inconel 713C alloy  

Kang, Minjung (Joining R&D Group, Korea Institute of Industrial Technology)
Kim, Cheolhee (Joining R&D Group, Korea Institute of Industrial Technology)
Kim, Young-Min (Joining R&D Group, Korea Institute of Industrial Technology)
Publication Information
Journal of Welding and Joining / v.35, no.1, 2017 , pp. 68-73 More about this Journal
Abstract
During welding of Ni based superalloy, hot cracking was usually happen in the fusion zone of a weld. In this study, the laser weldability of Inconel 713C alloy for the turbocharger wastegate valve (WGV) was evaluated with various welding conditions, such as laser power, welding speed, shielding gas. Welding conditions were optimized by bead-on-plate (BOP) and butt joint welding. For the evaluation of laser weldability, bead shapes and weld microstructures were investigated and tensile test was conducted. The fracture surfaces were investigated for the understanding the cause of the fracture.
Keywords
Laser welding; Inconel 713C alloy; Hot cracking; Solidification cracking;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 J. W. Chung, N. H. Kim, C. H. Lim and K. Y. Kim, Development of an EGR Model for a WGT Diesel Engine, KSAE Annual Conference Proceedings, (2014), 276-277,
2 J. Y. Huh, J. E. Chung, Y. W. Jin, W. Kang and J. W. Chung, Coordinated Control of EGR and VGT in the Diesel Engine, Transactions of KSAE, 16 (4) (2008), 159-164
3 D. J. Park, C. H. Kim and Y. B. Lee, A Study on the Characteristics of Oil-free Turbocharger for Diesel Engine Vehicles, Transactions of KSAE, 16 (4) (2008), 47-55
4 B. G. Park, S. W. Park, D. K. Park, S. Y. Kim, J. O. Jeong and J. K. Jang, Metal Injection Molding Analysis of WGV Head in a Turbo Charger of Gasoline Automobile, Transactions of KSAE, 23 (4) (2015), 388-395   DOI
5 W.A. Baeslack III, S.L. West and T.J. Kelly, Weld Cracking in Ta-Modified Cast Inconel 718, Scripta Metall. 22 (1988) 729-734   DOI
6 N.L. Richards, X. Huang and M.C. Chaturvedi, Heat Affected Zone Cracking in Cast Inconel 718, Mater. Charact. 28 (1992) 179-187   DOI
7 I.S. Woo and K. Nishimoto, Metallurgical Factors Contributing to HAZ Cracking Susceptibility in Cast Alloy 718 Welds and Its Improvement by Cerium Addition, Met. Mater. Int. 7 (2001) 241-249   DOI
8 Welding and Joining Handbook, Vol. 1, Korean Welding and Joining Society, (2008), 35-41 (in Korean)
9 B- I. Yang, J- T. Kim, K- S. Park, Y- B. Shin, Y- S Ahn, HS. Park, Hot cracking behavior in inconel 690 overlay welds on Mn-Ni-Cr-Mo steel for pressure vessels, Journal of KWS, 20 (2), (2002), 82-89 (in Korean)
10 B- I. Yang, B- H. Chi, J- T. Kim, K- S. Park, H- S. Choi, H- S. Park, The influence of chemical compositions of weld metal and welding conditions on hot cracking by hot cracking test, Journal of KWS, 20 (3), (2002), 74-83 (in Korean)