Creep cavities and carbide evolution in interrupted creep conditions along P91 steel of dissimilar weld joint

被引：0

作者：

Awale, Deepshree D. ^{[1
]}

Dandekar, Tushar R. ^{[2
]}

Ballal, Atul R. ^{[3
]}

Thawre, Manjusha M. ^{[3
]}

机构：

[1] Department of Metallurgical Engineering & Material Science, IITB, Mumbai, India

[2] School of Mechanical and Design Engineering, University of Portsmouth, Portsmouth, United Kingdom

[3] Department of Metallurgical & Materials Engineering, VNIT, Nagpur, India

来源：

Journal of Adhesion Science and Technology | 2024年 / 38卷 / 23期

关键词：

Number:; -; Acronym:; UGC-DAE CSR; Sponsor: UGC-DAE Consortium for Scientific Research; University Grants Commission;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

The creep behaviour of dissimilar weld joint of 316LN SS-P91 steel when subjected to lower applied stresses (below 100 MPa) generally fails in a Type-IV pattern. The dissimilar weld joint was welded through shielded metal arc welding (SMAW) process with INCONEL as electrode, a nickel-based superalloy. An interrupted creep test was carried out at creep condition of 80 MPa −600 °C temperature. Interruption was done at two stages of creep, i.e. (a) mid of secondary and (b) start of tertiary. Microstructural evolution with respect to the hardness variation along various regions of P91 steel at interrupted and the failed specimen was done. A coarsening of hierarchical boundaries and M23C6 carbides was observed along HAZ region that has resulted with respect to time and temperature. © 2024 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

引用

页码：4190 / 4201

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