Статья

Effect of Metal-Cored Filler Wire on Surface Morphology and Micro-Hardness of Regulated Metal Deposition Welded ASTM A387-Gr.11-Cl.2 Steel Plates

Din BandhuDepartment of Mechanical Engineering, Indian Institute of Information Technology Design and Manufacturing, Kurnool 518008, Andhra Pradesh, IndiaFaramarz DjavanroodiDepartment of Mechanical Engineering, College of Engineering, Prince Mohammad Bin Fahd University, Al Khobar 31952, Saudi ArabiaG. ShaikshavaliDepartment of Mechanical Engineering, G. Pulla Reddy Engineering College (Autonomous), Kurnool 518007, Andhra Pradesh, IndiaJay VoraDepartment of Mechanical Engineering, School of Technology, Pandit Deendayal Energy University (PDEU), Gandhinagar 382421, Gujarat, IndiaKumar AbhishekDepartment of Mechanical & Aerospace Engineering, Institute of Infrastructure, Technology, Research and Management (IITRAM), Ahmedabad 380026, Gujarat, IndiaAshish ThakurDepartment of Metallurgical and Materials Engineering, Visvesvaraya National Institute of Technology (VNIT), Nagpur 440010, Maharashtra, IndiaSoni KumariDepartment of Mechanical Engineering, GLA University, Mathura 281406, Uttar Pradesh, IndiaKuldeep K. SaxenaDepartment of Mechanical Engineering, GLA University, Mathura 281406, Uttar Pradesh, IndiaMahmoud EbrahimiNational Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, ChinaShokouh AttarilarNational Engineering Research Center of Light Alloy Net Forming and Key State Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, China

2022en

ABI

Аннотация

Environmental and human-friendly welding is the need of the hour. In this context, this study explores the application of the regulated metal deposition (RMD) technique for ASTM A387-Gr.11-Cl.2 steel plates. To examine the effect of metal-cored filler wire (MCFW), MEGAFIL 237 M was employed during regulated metal deposition (RMD) welding of 6 mm thick ASTM A387-Gr.11-Cl.2 steel plates. The welding was carried out at an optimized current (A) of 100 A, voltage (V) of 13 V, and gas flow rate (GFR) of 21 L/min. Thereafter, the as-welded plates were examined for morphological changes using optical microscopy. Additionally, the micro-hardness of the as-welded plates was measured to make corroboration with the obtained surface morphologies. In addition to this, the as-welded plates were subjected to heat treatment followed by surface morphology and micro-hardness examination. A comparison was made between the as-welded and heat-treated plates for their obtained surface morphologies and microhardness values. During this, it was observed that the weld zone of as-welded plates has a dendritic surface morphology which is very common in fusion-based welding. Similarly, the weld zone of heat-treated plates has a finer and erratic arrangement of martensite. Moreover, the obtained surface morphologies in the weld zone of as-welded and heat-treated plates have been justified by their respective hardness values of 1588.6 HV and 227.3 HV.

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Идентификаторы

DOI: 10.3390/ma15196661

Цитирования и источники

Цитирований: 4Использованных источников: 0

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