Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state

Research output: Contribution to journalArticleScientificpeer-review

Standard

Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state. / Sarikka, Teemu; Ahonen, Matias; Mouginot, Roman; Nevasmaa, Pekka; Karjalainen-Roikonen, Päivi; Ehrnstén, Ulla; Hänninen, Hannu.

In: International Journal of Pressure Vessels and Piping, Vol. 145, 01.09.2016, p. 13-22.

Research output: Contribution to journalArticleScientificpeer-review

Harvard

APA

Vancouver

Author

Sarikka, Teemu ; Ahonen, Matias ; Mouginot, Roman ; Nevasmaa, Pekka ; Karjalainen-Roikonen, Päivi ; Ehrnstén, Ulla ; Hänninen, Hannu. / Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state. In: International Journal of Pressure Vessels and Piping. 2016 ; Vol. 145. pp. 13-22.

Bibtex - Download

@article{0fafaaa3201541ea9973c5f2b9d877cf,
title = "Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state",
abstract = "In dissimilar metal welds (DMWs), the mismatch in material properties between the two joined materials and their abrupt local variation in different narrow zones of the weld are of importance because the local strength mismatch state plays an important role in the fracture behavior. For the experimental determination of the narrow local property variations in DMWs, a weld mock-up consisting of SA 508 pressure vessel steel with AISI 309L/308L cladding and AISI 304 piping steel base metals, an Alloy 182 buttering layer, and Alloy 82 and 182 weld metals was manufactured. In the characterization special attention was paid to the narrow interface zones (NIZ) between SA 508 steel and Alloy 182 buttering. The Alloy 182 buttering and weld metal were found under-matched in strength compared to the SA 508 base metal and the highest strength mismatch existed between the SA 508 heat-affected zone (HAZ) and the Alloy 182 buttering layer. The highest fracture resistance was observed in the Alloy 182 buttering and the fracture resistance of the SA 508 HAZ was similar to that of the fusion boundary. The fracture surfaces consisted of ductile fracture in all investigated samples. The differences in fracture resistance between the different DMW zones were found to relate to the hardness/strength of the particular weld zone as well as to the size and distribution of the MnS-inclusions in the microstructure.",
keywords = "Crack propagation, Dissimilar metal weld, Fracture resistance, Strength mismatch",
author = "Teemu Sarikka and Matias Ahonen and Roman Mouginot and Pekka Nevasmaa and P{\"a}ivi Karjalainen-Roikonen and Ulla Ehrnst{\'e}n and Hannu H{\"a}nninen",
year = "2016",
month = "9",
day = "1",
doi = "10.1016/j.ijpvp.2016.06.004",
language = "English",
volume = "145",
pages = "13--22",
journal = "International Journal of Pressure Vessels and Piping",
issn = "0308-0161",

}

RIS - Download

TY - JOUR

T1 - Microstructural, mechanical, and fracture mechanical characterization of SA 508-Alloy 182 dissimilar metal weld in view of mismatch state

AU - Sarikka, Teemu

AU - Ahonen, Matias

AU - Mouginot, Roman

AU - Nevasmaa, Pekka

AU - Karjalainen-Roikonen, Päivi

AU - Ehrnstén, Ulla

AU - Hänninen, Hannu

PY - 2016/9/1

Y1 - 2016/9/1

N2 - In dissimilar metal welds (DMWs), the mismatch in material properties between the two joined materials and their abrupt local variation in different narrow zones of the weld are of importance because the local strength mismatch state plays an important role in the fracture behavior. For the experimental determination of the narrow local property variations in DMWs, a weld mock-up consisting of SA 508 pressure vessel steel with AISI 309L/308L cladding and AISI 304 piping steel base metals, an Alloy 182 buttering layer, and Alloy 82 and 182 weld metals was manufactured. In the characterization special attention was paid to the narrow interface zones (NIZ) between SA 508 steel and Alloy 182 buttering. The Alloy 182 buttering and weld metal were found under-matched in strength compared to the SA 508 base metal and the highest strength mismatch existed between the SA 508 heat-affected zone (HAZ) and the Alloy 182 buttering layer. The highest fracture resistance was observed in the Alloy 182 buttering and the fracture resistance of the SA 508 HAZ was similar to that of the fusion boundary. The fracture surfaces consisted of ductile fracture in all investigated samples. The differences in fracture resistance between the different DMW zones were found to relate to the hardness/strength of the particular weld zone as well as to the size and distribution of the MnS-inclusions in the microstructure.

AB - In dissimilar metal welds (DMWs), the mismatch in material properties between the two joined materials and their abrupt local variation in different narrow zones of the weld are of importance because the local strength mismatch state plays an important role in the fracture behavior. For the experimental determination of the narrow local property variations in DMWs, a weld mock-up consisting of SA 508 pressure vessel steel with AISI 309L/308L cladding and AISI 304 piping steel base metals, an Alloy 182 buttering layer, and Alloy 82 and 182 weld metals was manufactured. In the characterization special attention was paid to the narrow interface zones (NIZ) between SA 508 steel and Alloy 182 buttering. The Alloy 182 buttering and weld metal were found under-matched in strength compared to the SA 508 base metal and the highest strength mismatch existed between the SA 508 heat-affected zone (HAZ) and the Alloy 182 buttering layer. The highest fracture resistance was observed in the Alloy 182 buttering and the fracture resistance of the SA 508 HAZ was similar to that of the fusion boundary. The fracture surfaces consisted of ductile fracture in all investigated samples. The differences in fracture resistance between the different DMW zones were found to relate to the hardness/strength of the particular weld zone as well as to the size and distribution of the MnS-inclusions in the microstructure.

KW - Crack propagation

KW - Dissimilar metal weld

KW - Fracture resistance

KW - Strength mismatch

UR - http://www.scopus.com/inward/record.url?scp=84976385390&partnerID=8YFLogxK

U2 - 10.1016/j.ijpvp.2016.06.004

DO - 10.1016/j.ijpvp.2016.06.004

M3 - Article

VL - 145

SP - 13

EP - 22

JO - International Journal of Pressure Vessels and Piping

JF - International Journal of Pressure Vessels and Piping

SN - 0308-0161

ER -

ID: 6597229