International Journal of Vehicle Structures and Systems

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Mechanical Characterization of Dissimilar Alloys Joined Using Electron Beam Welding:Technical Note


Affiliations
1 Dept. of Automobile Engg., Sathyabama University, Chennai, Tamil Nadu, India
2 Dept. of Mech. Engg., Karpagam College of Engg., Coimbatore, Tamil Nadu, India
3 Dept. of Mech. Engg., Veltech Dr. RR and Dr. SR University, Chennai, Tamil Nadu, India
 

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Electron Beam Welding (EBW) is used in various industrial applications for joining dissimilar metals due to its accuracy and good quality joints. International Thermonuclear Experimental Reactor (ITER) is the first experimental fusion power generating reactor in India. It uses a host of metals and alloys like Ti-6Al-4V, Ni-Al bronze and a special copper alloy (CRZ). This investigation aims to study the metallurgical and mechanical aspects of CRZ alloy and its EBW joint with a dissimilar metal like Nickel and stainless steel. Characterization includes material composition and effect of heat-treatment. The CRZ alloys were solution annealed at the temperature of 980°C for 15 minutes and then aged at 460-480°C for 4.5 hrs. The EBW welded joints were fabricated with CRZ-CRZ, CRZ-Ni and Ni-SS combination. The microstructure and mechanical properties were analyzed.

Keywords

Mechanical Properties, Electron Beam Welding, Microstructure, Annealing, Copper Alloy.
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  • Mechanical Characterization of Dissimilar Alloys Joined Using Electron Beam Welding:Technical Note

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Authors

V. K. Bupesh Raja
Dept. of Automobile Engg., Sathyabama University, Chennai, Tamil Nadu, India
C. Krishnaraj
Dept. of Mech. Engg., Karpagam College of Engg., Coimbatore, Tamil Nadu, India
K. Logesh
Dept. of Mech. Engg., Veltech Dr. RR and Dr. SR University, Chennai, Tamil Nadu, India

Abstract


Electron Beam Welding (EBW) is used in various industrial applications for joining dissimilar metals due to its accuracy and good quality joints. International Thermonuclear Experimental Reactor (ITER) is the first experimental fusion power generating reactor in India. It uses a host of metals and alloys like Ti-6Al-4V, Ni-Al bronze and a special copper alloy (CRZ). This investigation aims to study the metallurgical and mechanical aspects of CRZ alloy and its EBW joint with a dissimilar metal like Nickel and stainless steel. Characterization includes material composition and effect of heat-treatment. The CRZ alloys were solution annealed at the temperature of 980°C for 15 minutes and then aged at 460-480°C for 4.5 hrs. The EBW welded joints were fabricated with CRZ-CRZ, CRZ-Ni and Ni-SS combination. The microstructure and mechanical properties were analyzed.

Keywords


Mechanical Properties, Electron Beam Welding, Microstructure, Annealing, Copper Alloy.

References





DOI: https://doi.org/10.4273/ijvss.10.2.03