Effect of aging on elevated temperature ductile fracture toughness of type 316LN stainless steel alloy 800 weldment

被引：3

作者：

Bhaduri, AK ^{[1
]}

Sathe, DB ^{[1
]}

Ray, SK ^{[1
]}

Gill, TPS ^{[1
]}

Rodriguez, P ^{[1
]}

机构：

[1] Indira Gandhi Ctr Atom Res, Met & Mat Grp, Kalpakkam 603102, Tamil Nadu, India

来源：

SCIENCE AND TECHNOLOGY OF WELDING AND JOINING | 1999年 / 4卷 / 02期

关键词：

D O I：

10.1179/136217199101537590

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A type 316LN stainless steel/alloy 800 dissimilar metal weld, welded using Fe-16Cr-8Ni-2Mo (wt-%) filler metal, was subjected to accelerated aging heat treatments at 873 K for up to 5000 h to simulate long term sei vice exposures, and was characterised for elevated temperature service at 773 K. The analysis included, apart from conventional structure-property correlation, characterisation in terms of the empirical parameters Gamma(f) and eta(f) determined at 773 K. The parameters Gamma(f) and eta(f) characterise the resistance to ductile fracture and are determined from tensile tests of smooth cylindrical transverse weld specimens. The results show that the present weldment has adequate stability against elevated temperature aging, and should therefore show stable behaviour oil exposure at the service temperature.

引用

页码：75 / 79

页数：5

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