Technical Brief

Preliminary Metallurgical and Mechanical Investigations of Microwave Processed Hastelloy Joints

[+] Author and Article Information
Satnam Singh

Assistant Professor
Department of Mechanical Engineering,
The Northcap University,
Gurgaon, Haryana 122017, India
e-mail: satnamsingh@ncuindia.edu

Rajveer Singh

Department of Mechanical Engineering,
Thapar University,
Patiala, Punjab 147004, India
e-mail: rajveer.chaudhary@dsm-sinochem.com

Dheeraj Gupta

Assistant Professor
Department of Mechanical Engineering,
Thapar University,
Patiala, Punjab 147004, India
e-mail: dheeraj.gupta@thapar.edu

Vivek Jain

Assistant Professor
Department of Mechanical Engineering,
Thapar University,
Patiala, Punjab 147004, India
e-mail: Vivek.jain@thapar.edu

1Corresponding author.

Manuscript received September 2, 2016; final manuscript received November 30, 2016; published online January 30, 2017. Assoc. Editor: Wayne Cai.

J. Manuf. Sci. Eng 139(6), 064503 (Jan 30, 2017) (5 pages) Paper No: MANU-16-1481; doi: 10.1115/1.4035370 History: Received September 02, 2016; Revised November 30, 2016

In this paper, joining of Hastelloy has been successfully carried out by microwave hybrid heating process. The joints were developed by using a microwave oven at a frequency of 2.45 GHz and 900 W. A thin layer of slurry consisting of nickel-based powder and epoxy resin was introduced between the faying surfaces. The joints obtained by microwave hybrid heating were characterized by XRD, SEM–EDS, Vicker's microhardness, and tensile tests. Microstructure analysis revealed the formation of equiaxed grains, and results of XRD analysis revealed formation of some intermetallics and suppression of carbide formation. This can be attributed to the volumetric heating nature of microwaves. The microhardness study revealed 320 ± 25 HV hardness on grain surfaces and 680 ± 40 HV on grain boundaries. The tensile strength of the microwave processed joints was∼82% of base Hastelloy strength. The fractographic analysis of the fractured samples revealed a ductile fracture coupled with the shearing of brittle carbides in the joint region. An overall study revealed the potential of microwaves in joining of bulk metallic materials.

Copyright © 2017 by ASME
Topics: Microwaves , Joining , Heating
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David, S. A. , Siefert, J. A. , and Feng, Z. , 2013, “ Welding and Weldability of Candidate Ferritic Alloys for Future Advanced Ultrasupercritical Fossil Power Plants,” Sci. Technol. Weld. Joining, 18(8), pp. 631–651. [CrossRef]
Kapil, A. , and Sharma, A. , 2015, “ Magnetic Pulse Welding: An Efficient and Environmentally Friendly Multi-Material Joining Technique,” J. Cleaner Prod., 100, pp. 35–58. [CrossRef]
Vignarooban, K. , Pugazhendhi, P. , Tucker, C. , Gervasio, D. , and Kannan, A. M. , 2014, “ Corrosion Resistance of Hastelloys in Molten Metal-Chloride Heat-Transfer Fluids for Concentrating Solar Power Applications,” Sol. Energy, 103, pp. 62–69. [CrossRef]
Li, Z. , Han, J. , Lu, J. , and Chen, J. , 2015, “ Cavitation Erosion Behavior of Hastelloy C-276 Nickel-Based Alloy,” J. Alloys Compd., 619, pp. 754–759. [CrossRef]
Dai, X. , Zhang, H. , Liu, J. , and Feng, J. , 2015, “ Microstructure and Properties of Mg/Al Joint Welded by Gas Tungsten Arc Welding-Assisted Hybrid Ultrasonic Seam Welding,” Mater. Des., 77, pp. 65–71. [CrossRef]
Shi, Y. , Han, R. , Huang, J. , and Yan, S. , 2014, “ Numerical and Experimental Study of Temperature Field for Double Electrode Gas Metal Arc Welding,” ASME J. Manuf. Sci. Eng., 136(2), p. 24502. [CrossRef]
Chen, X. L. , Yan, H. G. , Chen, J. H. , Su, B. , and Yu, Z. H. , 2013, “ Effects of Grain Size and Precipitation on Liquation Cracking of AZ61 Magnesium Alloy Laser Welding Joints,” Sci. Technol. Weld. Joining, 18(6), pp. 458–465. [CrossRef]
Lu, W. , Shi, Y. , Lei, Y. , and Li, X. , 2012, “ Effect of Electron Beam Welding on the Microstructures and Mechanical Properties of Thick TC4-DT Alloy,” Mater. Des., 34, pp. 509–515. [CrossRef]
Afonso, V. , Roberto, J. , and de Rossi, W. , 2012, “ Pulsed Nd:YAG Laser Welding of Ni-Alloy Hastelloy C-276 Foils,” Phys. Procedia, 39, pp. 569–576. [CrossRef]
Guo, N. , Lin, S. B. , Gao, C. , Fan, C. L. , and Yang, C. L. , 2009, “ Study on Elimination of Interlayer Defects in Horizontal Joints Made by Rotating Arc Narrow Gap Welding,” Sci. Technol. Weld. Joining, 14(6), pp. 584–588. [CrossRef]
Meran, C. , 2006, “ Prediction of the Optimized Welding Parameters for the Joined Brass Plates Using Genetic Algorithm,” Mater. Des., 27(5), pp. 356–363. [CrossRef]
Min, D. , Shen, J. , Lai, S. , and Chen, J. , 2009, “ Effect of Heat Input on the Microstructure and Mechanical Properties of Tungsten Inert Gas Arc Butt-Welded AZ61 Magnesium Alloy Plates,” Mater. Charact., 60(12), pp. 1583–1590. [CrossRef]
Karadeniz, E. , Ozsarac, U. , and Yildiz, C. , 2007, “ The Effect of Process Parameters on Penetration in Gas Metal Arc Welding Processes,” Mater. Des., 28(2), pp. 649–656. [CrossRef]
Caiazzo, F. , Alfieri, V. , Corrado, G. , Cardaropoli, F. , and Sergi, V. , 2013, “ Investigation and Optimization of Laser Welding of Ti-6Al-4 V Titanium Alloy Plates,” ASME J. Manuf. Sci. Eng., 135(6), p. 61012. [CrossRef]
Manikandan, M. , Rao, M. , Ramanujam, R. , Ramkumar, D. , Arivazhagan, N. , and Reddy, G. M. , 2014, “ Optimization of the Pulsed Current Gas Tungsten Arc Welding Process Parameters for Alloy C-276 Using the Taguchi Method,” Procedia Eng., 97, pp. 767–774. [CrossRef]
Guo, Y. , Wu, D. , Ma, G. , and Guo, D. , 2014, “ Trailing Heat Sink Effects on Residual Stress and Distortion of Pulsed Laser Welded Hastelloy C-276 Thin Sheets,” J. Mater. Process. Technol., 214(12), pp. 2891–2899. [CrossRef]
Ma, G. , Wu, D. , Niu, F. , and Zou, H. , 2015, “ Microstructure Evolution and Mechanical Property of Pulsed Laser Welded Ni-Based Superalloy,” Opt. Lasers Eng., 72, pp. 39–46. [CrossRef]
Sihotang, R. , Sung-Sang, P. , and Eung-Ryul, B. , 2014, “ Effects of Heat Input on Microstructure of Tungsten Inert Gas Welding Used Hastelloy X,” Mater. Res. Innovations, 18(S2), pp. 1074–1080.
Singh, S. , Gupta, D. , Jain, V. , and Sharma, A. K. , 2015, “ Microwave Processing of Materials and Applications in Manufacturing Industries: A Review,” Mater. Manuf. Process., 30(1), pp. 1–29. [CrossRef]
Sharma, A. K. , Srinath, M. S. , and Pradeep, K. , 2009, “ Microwave Joining of Metallic Materials,” Indian Patent Application No. 1994/Del/2009.
Srinath, M. S. , Sharma, A. K. , and Kumar, P. , 2011, “ A New Approach to Joining of Bulk Copper Using Microwave Energy,” Mater. Des., 32(5), pp. 2685–2694. [CrossRef]
Srinath, M. S. , Sharma, A. K. , and Kumar, P. , 2011, “ Investigation on Microstructural and Mechanical Properties of Microwave Processed Dissimilar Joints,” J. Manuf. Process., 13(2), pp. 141–146. [CrossRef]
Singh, R. , Gupta, D. , and Jain, V. , 2011, “ Joining and Characterization of Austenitic Stainless Steel (SS-316) and Hastelloy Through Conventional and Microwave Processing Route,” M.Tech thesis, TIET University, Patiala, India.
Mishra, R. R. , and Sharma, A. K. , 2015, “ Microwave-Material Interaction Phenomena: Heating Mechanisms, Challenges and Opportunities in Material Processing,” Composites, Part A, 81, pp. 78–97. [CrossRef]
Singh, S. , Gupta, D. , and Jain, V. , 2016, “ Microwave Melting and Processing of Metal-Ceramic Composite Castings,” Proc. Inst. Mech. Eng., Part B (in press).
Bansal, A. , Sharma, A. K. , Kumar, P. , and Das, S. , 2014, “ Characterization of Bulk Stainless Steel Joints Developed Through Microwave Hybrid Heating,” Mater. Charact., 91, pp. 34–41. [CrossRef]
Singh, S. , Gupta, D. , and Jain, V. , 2016, “ Novel Microwave Composite Casting Process: Theory, Feasibility and Characterization,” Mater. Des., 111, pp. 51–59.


Grahic Jump Location
Fig. 3

(a) XRD spectrum of microwave processed Hastelloy joint and (b) SEM image showing the cellular grain structure in joint region

Grahic Jump Location
Fig. 2

(a) Schematic of microwave hybrid heating process, (b) flow chart showing a process of microwave joining, (c) standard tensile specimen, and (d) macrograph showing the microwave processed joint zone

Grahic Jump Location
Fig. 1

(a) Typical SEM image and (b) typical XRD spectrum of EWAC powder

Grahic Jump Location
Fig. 4

(a) EDS analysis on grain surface and grain boundary and (b) SEM image showing the fractured joint region



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