Effect of Notch on Creep Behavior of 316L(N) SS Weld Joint

被引：2

作者：

Charde, S. R. ^{[2
]}

Ballal, A. R. ^{[1
]}

Peshwe, D. R. ^{[1
]}

Mathew, M. D. ^{[3
]}

Paretkar, R. K. ^{[1
]}

机构：

[1] Visvesvaraya Natl Inst Technol, Nagpur 440010, Maharashtra, India

[2] Govt Coll Engn, Amravati 444604, India

[3] Indira Gandhi Ctr Atom Res, Kalpakkam 603102, Tamil Nadu, India

来源：

6TH INTERNATIONAL CONFERENCE ON CREEP, FATIGUE AND CREEP-FATIGUE INTERACTION | 2013年 / 55卷

关键词：

316L(N) SS; creep; notch; weld joint; multiaxilaity; FEM analysis; FRACTURE;

D O I：

10.1016/j.proeng.2013.03.290

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Creep testing of notched cross-weld specimens was carried out at 873 K temperature and 300 MPa stress to study the effect of notch on creep properties of 316 L (N) SS weld joint. Various stress states were achieved by changing the notch profile. It was observed that, multiaxial state of stress developed during creep had a decisive role in creep life and the deformation mechanism. Thus, presence of notch and its consequences on creep life of the specimen prompted to offer exact solutions to explain the creep behavior. Notch strengthening effect is reported in the present investigation. Single mode of fracture was observed and fractures were located at the notch root. The transformation of delta-ferrite to sigma phase during creep exposure for about 2700 to 6200 h had resulted in ductile fracture in weld metal. (C) 2013 The Authors. Published by Elsevier Ltd.

引用

页码：526 / 533

页数：8

共 9 条

[1] Jandova D, 2010, CAUSES FAILURE WELD
[2] Manjoine M.J., WELDING RES SUPPLE S, V51S
[3] Multiregion analysis of creep rupture data of 316 stainless steel
Maruyama, Kouichi
Armaki, Hassan Ghassemi
Yoshimi, Kyosuke
[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2007, 84 (03) : 171 - 176
[4] Mathew M.D, 2008, 5 INT C CREEP FAT CR
[5] Stress concentration formula useful for all notch shape in a round bar (comparison between torsion, tension and bending)
Noda, NA
Takase, Y
[J]. INTERNATIONAL JOURNAL OF FATIGUE, 2006, 28 (02) : 151 - 163
[6] STRESS-CONCENTRATION FACTORS FOR ROUND AND FLAT TEST SPECIMENS WITH NOTCHES
NODA, NA
SERA, M
TAKASE, Y
[J]. INTERNATIONAL JOURNAL OF FATIGUE, 1995, 17 (03) : 163 - 178
[7] Creep deformation and fracture behaviour of a nitrogen-bearing type 316 stainless steel weld metal
Sasikala, G
Mathew, MD
Rao, KBS
Mannan, SL
[J]. JOURNAL OF NUCLEAR MATERIALS, 1999, 273 (03) : 257 - 264
[8] GEOMETRICAL EFFECT ON CREEP IN CROSS WELD SPECIMENS
STORESUND, J
TU, ST
[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 1995, 62 (02) : 179 - 193
[9] Creep damage and fracture of weldments at high temperature
Tu, ST
Segle, P
Gong, JM
[J]. INTERNATIONAL JOURNAL OF PRESSURE VESSELS AND PIPING, 2004, 81 (02) : 199 - 209

← 1 →