A Study of Temper Bead Technique on A508 Steel Welds

Wei Chih Chung; Leu Wen Tsay; Chun Chen

doi:10.4028/www.scientific.net/AMR.295-297.1938

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 295-297A Study of Temper Bead Technique on A508 Steel...

A Study of Temper Bead Technique on A508 Steel Welds

Abstract:

The use of temper bead technique in an attempt to eliminate the conventional postweld heat treatment (PWHT) in welding of A508 steel with Alloy 52 filler metal was evaluated. A PWHT at 621°C for 24 h reduced hardness in the heat-affected zone (HAZ) of the conventional welds but led to forming a carbon-denuded zone near the weld interface. The temper bead welding process not only softened the hardness in the HAZ but also diminished the carbon-denuded zone of A508-Alloy 52 welds. Apparently, the temper bead technique provides a convenient and time- saving process for welding/repairing large structural components.

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Periodical:

Advanced Materials Research (Volumes 295-297)

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1938-1942

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.295-297.1938

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Online since:

July 2011

Authors:

Wei Chih Chung, Leu Wen Tsay, Chun Chen

Keywords:

A508 Steel, Dissimilar Metal Welding, Microstructure, Temper Bead Technique

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