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Creep Rupture Properties of Type 316LN Stainless Steel Welded by the SAW Process

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Abstract:

The creep properties of type 316LN SS welded by the SAW process have been evaluated. The creep tests for both the base and weld metals were conducted with different stress levels at 550oC and 600oC. The creep-rupture time of the weld metal did not show a large difference when compared to that of the base one, though it exhibited a little lower value at 600oC. The creep rate of the weld metal was lower than that of the base one at the same stress and rupture-time conditions. Especially, the creep-rupture ductility of the weld metal is found to be decreased by about 60%, compared to the base one. This is due to the decreasing of tensile elongation and the increasing of the yield stress in the weld metals.

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Periodical:

Solid State Phenomena (Volume 119)

Pages:

91-94

DOI:

https://doi.org/10.4028/www.scientific.net/SSP.119.91

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Online since:

January 2007

Authors:

Woo Gon Kim, Woo Seog Ryu

Keywords:

Creep, Creep Rupture, Steady State Creep Rate, Submerged Arc Weld (SAW), Type 316LN Stainless Steel, Weld Metal

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© 2007 Trans Tech Publications Ltd. All Rights Reserved

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