Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering

H. Kokawa; M. Shimada; M. Michiuchi; Z. J. Wang; Y. S. Sato

doi:10.1016/j.actamat.2007.06.005

Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering

H. Kokawa, M. Shimada, M. Michiuchi, Z. J. Wang, Y. S. Sato

ENG - Materials Processing

Research output: Contribution to journal › Article › peer-review

98 Citations (Scopus)

Abstract

A twin-induced grain boundary engineered 304 austenitic stainless steel with a high frequency of coincidence site lattice boundaries produced by a one-step thermomechanical process was arc-welded. The heat-affected zone was examined by orientation imaging microscopy and corrosion tests. The results indicated that the intergranular corrosion due to sensitization in the heat-affected zone were perfectly suppressed, because the high frequency of coincidence site lattice boundaries and the optimum grain boundary character distribution were stable in the grain boundary engineered stainless steel during arc-welding. The grain boundary engineering can arrest the weld-decay of austenitic stainless steel effectively.

Original language	English
Pages (from-to)	5401-5407
Number of pages	7
Journal	Acta Materialia
Volume	55
Issue number	16
DOIs	https://doi.org/10.1016/j.actamat.2007.06.005
Publication status	Published - 2007 Sep

Keywords

Austenitic steels
Coincidence boundaries
Corrosion
Orientation imaging microscopy
Welding

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Ceramics and Composites
Polymers and Plastics
Metals and Alloys

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10.1016/j.actamat.2007.06.005

Cite this

@article{75f7a1cd823f4bb0970aff1e0d573bff,

title = "Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering",

abstract = "A twin-induced grain boundary engineered 304 austenitic stainless steel with a high frequency of coincidence site lattice boundaries produced by a one-step thermomechanical process was arc-welded. The heat-affected zone was examined by orientation imaging microscopy and corrosion tests. The results indicated that the intergranular corrosion due to sensitization in the heat-affected zone were perfectly suppressed, because the high frequency of coincidence site lattice boundaries and the optimum grain boundary character distribution were stable in the grain boundary engineered stainless steel during arc-welding. The grain boundary engineering can arrest the weld-decay of austenitic stainless steel effectively.",

keywords = "Austenitic steels, Coincidence boundaries, Corrosion, Orientation imaging microscopy, Welding",

author = "H. Kokawa and M. Shimada and M. Michiuchi and Wang, {Z. J.} and Sato, {Y. S.}",

note = "Funding Information: The partial support of this work by a Grant-in-Aid for Scientific Research (A) (No. 18206075) and a Grant-in-Aid for the 21st century COE program at the International Center of Research and Education for Materials at Tohoku University from the Japanese Ministry of Education, Culture, Sports, Science and Technology is gratefully acknowledged. The authors thank Professor T. Watanabe for his useful comments, and Ms. A. Masuzawa and Mr. A. Honda for their technical assistance.",

year = "2007",

month = sep,

doi = "10.1016/j.actamat.2007.06.005",

language = "English",

volume = "55",

pages = "5401--5407",

journal = "Acta Materialia",

issn = "1359-6454",

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T1 - Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering

AU - Kokawa, H.

AU - Shimada, M.

AU - Michiuchi, M.

AU - Wang, Z. J.

AU - Sato, Y. S.

N1 - Funding Information: The partial support of this work by a Grant-in-Aid for Scientific Research (A) (No. 18206075) and a Grant-in-Aid for the 21st century COE program at the International Center of Research and Education for Materials at Tohoku University from the Japanese Ministry of Education, Culture, Sports, Science and Technology is gratefully acknowledged. The authors thank Professor T. Watanabe for his useful comments, and Ms. A. Masuzawa and Mr. A. Honda for their technical assistance.

PY - 2007/9

Y1 - 2007/9

N2 - A twin-induced grain boundary engineered 304 austenitic stainless steel with a high frequency of coincidence site lattice boundaries produced by a one-step thermomechanical process was arc-welded. The heat-affected zone was examined by orientation imaging microscopy and corrosion tests. The results indicated that the intergranular corrosion due to sensitization in the heat-affected zone were perfectly suppressed, because the high frequency of coincidence site lattice boundaries and the optimum grain boundary character distribution were stable in the grain boundary engineered stainless steel during arc-welding. The grain boundary engineering can arrest the weld-decay of austenitic stainless steel effectively.

AB - A twin-induced grain boundary engineered 304 austenitic stainless steel with a high frequency of coincidence site lattice boundaries produced by a one-step thermomechanical process was arc-welded. The heat-affected zone was examined by orientation imaging microscopy and corrosion tests. The results indicated that the intergranular corrosion due to sensitization in the heat-affected zone were perfectly suppressed, because the high frequency of coincidence site lattice boundaries and the optimum grain boundary character distribution were stable in the grain boundary engineered stainless steel during arc-welding. The grain boundary engineering can arrest the weld-decay of austenitic stainless steel effectively.

KW - Austenitic steels

KW - Coincidence boundaries

KW - Corrosion

KW - Orientation imaging microscopy

KW - Welding

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DO - 10.1016/j.actamat.2007.06.005

M3 - Article

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VL - 55

SP - 5401

EP - 5407

JO - Acta Materialia

JF - Acta Materialia

SN - 1359-6454

IS - 16

ER -

Arrest of weld-decay in 304 austenitic stainless steel by twin-induced grain boundary engineering

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Keywords

ASJC Scopus subject areas

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