Affiliation:
1. Vikram Sarabhai Space Centre
Abstract
Niobium, a refractory metal is mainly used as alloying addition in steels, superalloys, titanium and copper alloys. Being lightest refractory metal with high melting temperature, niobium based alloys are developed for high temperature applications of aerospace systems. However, poor oxidation resistance at elevated temperature limits its fabrication options and also requires oxidation protection in service. Among the fabrication methods, electron beam welding has been found to be a realistic option and the same has been studied in the present work. The paper presents the details of the Electron Beam Welding study carried out in developing the welding procedure for this alloy. An attempt has been made to correlate the weldment microstructure with the mechanical properties.
Publisher
Trans Tech Publications, Ltd.
Subject
Mechanical Engineering,Mechanics of Materials,Condensed Matter Physics,General Materials Science
Reference6 articles.
1. X.P. Guo, L.M. Gao, P. Guan, K. Kusaburaki, H.Z. Fu, Microstructure and Mechanical Properties of an Advanced Niobium Based Ultrahigh Temperature Alloy, Materials Science Forum 539–543 (2000) 3690-3695.
2. Information on http: /www. wahchang. com/pages/outlook/pdf/2000/q2/2q2k_outlook. pdf.
3. Proceedings of 10th Annual Symposium- Propulsion Engineering Research Center, NASA Marshall Space Flight Centre, Huntsville, Alabama, October 26-27, (1998).
4. R. K. Gupta, V. Anil Kumar, M. K. Karthikeyan, P. Ramkumar, P. Rameshnarayanan, P. P. Sinha, Investigation of cracks generated in Columbium alloy (C-103) sheets during deep drawing operation, Journal of Failure Analysis and Prevention 10(3) (2010).
5. R.K. Gupta, B.R. Ghosh, V. Anil Kumar, M.K. Karthikeyan, P.P. Sinha, Investigation on cracks generated during Flow Forming of Nb-Hf-Ti alloy sheet, Journal of Failure Analysis and Prevention 7(6) (2007) 424-428.
Cited by
8 articles.
订阅此论文施引文献
订阅此论文施引文献，注册后可以免费订阅5篇论文的施引文献，订阅后可以查看论文全部施引文献