Hot Tensile Properties of SMA Welded Similar and Dissimilar Joint of P91 and SS304 Grade Steels

Q3 Engineering

International Journal of Vehicle Structures and Systems Pub Date : 2023-04-03 DOI:10.4273/ijvss.15.1.15

M. Vinothkumar, V. Hariram, R. Christu Paul, R. Selvakumar, V. Ramanathan, P. Sai Shreekanth, M. Balachandar, J. Calvin Eddgar

引用次数: 0

Abstract

P91 martensitic and SS304 austenitic stainless steel is identified as the steels for use in high temperature areas of ultra-super critical boilers. The boiler piping involves similar and dissimilar weld joints of P91 and SS304 grade steels. The welded joints are exposed to high temperature in service and it is therefore required to evaluate the high temperature behaviour of such joints. Hot tensile test is a short-term high temperature test which is a useful tool to study the high temperature behaviour of the welds. In this investigation, shielded metal arc welded (SMAW) similar joints of P91/P91 martensitic steel, SS304/SS304 austenitic steels joined using matching weld metal and dissimilar joints of P91/SS304 welded using Inconel weld metal are subjected to hot tensile test at temperatures of 550 deg C, 600 deg C and 650 deg C. The stress-strain behaviour of the weld joints at elevated temperature was studied.

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P91级和SS304级SMA焊接异种接头的热拉伸性能

P91马氏体不锈钢和SS304奥氏体不锈钢被确定为超超临界锅炉高温区域用钢。锅炉管道采用P91级和SS304级钢的异种和异种焊接接头。焊接接头在工作中暴露在高温下，因此需要对这种接头的高温性能进行评估。热拉伸试验是一种短期高温试验，是研究焊缝高温性能的有效工具。在高温550℃、600℃和650℃的条件下，分别对P91/P91马氏体钢、SS304/SS304奥氏体钢和Inconel焊接金属的P91/SS304不同类型的保护金属弧焊(SMAW)接头进行了热拉伸试验，研究了焊缝在高温下的应力-应变行为。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

International Journal of Vehicle Structures and Systems Engineering-Mechanical Engineering

CiteScore

0.90

自引率

0.00%

发文量

期刊介绍： The International Journal of Vehicle Structures and Systems (IJVSS) is a quarterly journal and is published by MechAero Foundation for Technical Research and Education Excellence (MAFTREE), based in Chennai, India. MAFTREE is engaged in promoting the advancement of technical research and education in the field of mechanical, aerospace, automotive and its related branches of engineering, science, and technology. IJVSS disseminates high quality original research and review papers, case studies, technical notes and book reviews. All published papers in this journal will have undergone rigorous peer review. IJVSS was founded in 2009. IJVSS is available in Print (ISSN 0975-3060) and Online (ISSN 0975-3540) versions. The prime focus of the IJVSS is given to the subjects of modelling, analysis, design, simulation, optimization and testing of structures and systems of the following: 1. Automotive vehicle including scooter, auto, car, motor sport and racing vehicles, 2. Truck, trailer and heavy vehicles for road transport, 3. Rail, bus, tram, emerging transit and hybrid vehicle, 4. Terrain vehicle, armoured vehicle, construction vehicle and Unmanned Ground Vehicle, 5. Aircraft, launch vehicle, missile, airship, spacecraft, space exploration vehicle, 6. Unmanned Aerial Vehicle, Micro Aerial Vehicle, 7. Marine vehicle, ship and yachts and under water vehicles.