Creep rupture properties of type 316LN stainless steel welded by the SAW process

被引:4
作者
Kim, Woo Gon [1 ]
Ryu, Woo Seog [1 ]
机构
[1] Korea Atom Energy Res Inst, 150 Deogjin Dong, Taejon 305353, South Korea
来源
NANOCOMPOSITES AND NANOPOROUS MATERIALS | 2007年 / 119卷
关键词
creep; creep rupture; submerged arc.weld (SAW); type 316LN stainless steel; steady state creep rate; weld metal;
D O I
10.4028/www.scientific.net/SSP.119.91
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
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 550 degrees C and 600 degrees C. 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 600 degrees C. 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.
引用
收藏
页码:91 / +
页数:2
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