Experimental review of thermal analysis of dissimilar welds of High-Strength Steel

Autor: Bayock Francois Njock, Kah Paul, Mvola Belinga, Layus Pavel
Jazyk: angličtina
Rok vydání: 2019
Předmět:
Zdroj: Reviews on Advanced Materials Science, Vol 58, Iss 1, Pp 38-49 (2019)
Druh dokumentu: article
ISSN: 1605-8127
DOI: 10.1515/rams-2019-0004
Popis: Dissimilar welding offers exiting benefits for a wide range of engineering applications, such as automotive bodies, piping systems of nuclear power plants, health equipment. The main advantages of dissimilarwelding applications areweight reductions, lower costs, unique properties combinations, and improved energy-efficiency. The properties of dissimilar weld depend on the type of welding process used, the accuracy of the process parameters control, the characteristics of the base metal and the heat treatment procedures. The current study reviews the scientific literature on the topic of thermal analysis of dissimilar high-strength steels (HSS) welding. The review of experimental data was carried out to analyze the variable heat input effect on dissimilar welds. The results indicate the welds mechanical properties irregularity and reduction in toughness and tensile strength due to uneven changes in the microstructure. Furthermore, postweld heat treatment (PWHT) often resulted in the formation of intermetallic compounds whose properties are dependent on the duration of treatment. The research results can be used to optimize the heat input of the HSS welding process.
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