scholarly journals Metallurgical and mechanical characterization of mild steel-mild steel joint formed by microwave hybrid heating process

Sadhana ◽  
2013 ◽  
Vol 38 (4) ◽  
pp. 679-686 ◽  
Author(s):  
AMIT BANSAL ◽  
APURBBA KUMAR SHARMA ◽  
SHANTANU DAS
2021 ◽  
Vol 105 ◽  
pp. 25-41
Author(s):  
Parminder Singh ◽  
D.R. Prajapati ◽  
Shankar Sehgal

This paper presents the current major research developments and growths in the area of microwave hybrid heating-based joining of similar and dissimilar materials. The study discusses on the different types of specimen materials, susceptor materials, fillers and microwave power level used by researchers for joining process. Comparative studies of joints using different parametric conditions are also mentioned. Physical characterization of joint has been investigated with optical microscope, scanning electron microscope, energy dispersive spectroscopy, electron probe micro analysis, X-ray diffraction and mechanically with hardness test, tensile test, 3-point bend test, impact test. Various methods for design of experiment and optimization are also used to obtain better results. Current study will facilitate the proper choice of input parameters for easy and good joints formation through the microwave hybrid heating method.


2014 ◽  
Vol 91 ◽  
pp. 34-41 ◽  
Author(s):  
Amit Bansal ◽  
Apurbba Kumar Sharma ◽  
Pradeep Kumar ◽  
Shantanu Das

2021 ◽  
Vol ahead-of-print (ahead-of-print) ◽  
Author(s):  
Nalin Somani ◽  
Navjot Singh ◽  
Nitin Kumar Gupta

Purpose The purpose of this paper is to based upon the joining and characterization (mechanical and metallurgical) of ferritic stainless steel (SS)-430 using a microwave hybrid heating (MHH) phenomenon. Design/methodology/approach The preliminary experiments were conducted using nickel-based powder as interface material using a domestic microwave oven at a frequency of 2.45 GHz and 900 W power for 720 s. The processed joint was metallurgically characterized by means of X-ray diffraction, Energy-dispersive X-ray spectroscopy and Field emission scanning electron microscopy. Mechanical characterization was done by means of tensile and Vickers’ microhardness testing to check the hardness and strength of the joint. Findings The metallurgical study revealed that the microstructure and formation of numerous phases of Fe2Si3 accompanied by chromium and nickel carbides. The average hardness of 359 Hv at the center of the joint and 637 Hv around the boundaries of the joint was observed. The tensile strength of the joint was observed to 471 MPa with an elongation of 9.02%. The worn surface of the joint signifies the presence of plastic deformation and it was limited due to the presence of harder phases such as Ni3Si and Ni3C. Research limitations/implications The concept of microwave joining of metals is a very challenging task as the temperature can not be controlled in the inert atmosphere of the microwave. It has been also observed that at certain elevated temperatures, the material starts absorbing the microwaves; which is unknown. So, a more intensive study is required to overcome these kinds of limitations. Practical implications MHH technique can be used to process different materials such as ceramics, composites and polymers. SS-430 joined by microwave heating is highly corrosion resistive and has wide applications in refrigerators cabinet panels, dishwasher linings, chimney liners, lashing wires, etc. Originality/value As of the author’s best knowledge, no work has been reported on the joining of SS-430 which has huge potential in the industries. Also, no work has been reported on the characterization of microwave joined SS-430.


Author(s):  
Satnam Singh ◽  
Rajveer Singh ◽  
Dheeraj Gupta ◽  
Vivek Jain

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.


2020 ◽  
Vol 28 ◽  
pp. 1319-1322 ◽  
Author(s):  
Sanjeev Kumar ◽  
Shankar Sehgal ◽  
Surjeet Singh ◽  
Ashok Kumar Bagha

2017 ◽  
Vol 27 ◽  
pp. 158-168 ◽  
Author(s):  
Dhirendra Gamit ◽  
Radha Raman Mishra ◽  
Apurbba Kumar Sharma

2015 ◽  
Vol 2 (4-5) ◽  
pp. 1340-1346 ◽  
Author(s):  
Shivinder Singh ◽  
N.M. Suri ◽  
R.M. Belokar

2017 ◽  
Vol 160 ◽  
pp. 1198-1204 ◽  
Author(s):  
Kaipeng Zhang ◽  
Dongyan Shi ◽  
Wei Wang ◽  
Qingshan Wang

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