Effect of Heat Input on the Microstructure of Ultra-Narrow Gap Welded NK-HITEN610U2 Steel Heat Affected Zone

Xuan Zhao; Ke Jie Dai; Fu Ju Zhang

doi:10.4028/www.scientific.net/AMM.333-335.1967

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HomeApplied Mechanics and MaterialsApplied Mechanics and Materials Vols. 333-335Effect of Heat Input on the Microstructure of...

Effect of Heat Input on the Microstructure of Ultra-Narrow Gap Welded NK-HITEN610U2 Steel Heat Affected Zone

Abstract:

Effect of welding heat input on the microstructure of the automatic ultra-narrow gap welded NK-HITEN610U2 steel heat affected zone (HAZ) was studied. Five heat input combinations (6kj/cm, 10kj/cm, 14kj/cm, 18kj/cm, 22kj/cm) were designated for the research. The weld joints made using these five combinations were subjected to micro-structural evaluations and hardness test for analyze the effect of the heat input on the microstructure. The results indicated that the width of heat affected zone increased with increase in the heat input.

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Periodical:

Applied Mechanics and Materials (Volumes 333-335)

Pages:

1967-1970

DOI:

https://doi.org/10.4028/www.scientific.net/AMM.333-335.1967

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Online since:

July 2013

Authors:

Xuan Zhao, Ke Jie Dai, Fu Ju Zhang

Keywords:

Heat Affected Zone (HAZ), High-Strength Low-Alloy Steel, Ultra-Narrow-Gap Welding, Welding Heat Input

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