Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel

Kenji Kaneko; Tatsuya Fukunaga; Kazuhiro Yamada; Nobuo Nakada; Masao Kikuchi; Zineb Saghi; Jon S. Barnard; Paul A. Midgley

doi:10.1016/j.scriptamat.2011.06.010

Formation of M₂₃C₆-type precipitates and chromium-depleted zones in austenite stainless steel

Kenji Kaneko, Tatsuya Fukunaga, Kazuhiro Yamada, Nobuo Nakada, Masao Kikuchi, Zineb Saghi, Jon S. Barnard, Paul A. Midgley

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

183 Citations (Scopus)

Abstract

Formation of M₂₃C₆ carbides and chromium-depleted zones in commercially available type 304L stainless steel were investigated by in situ transmission electron microscopy and analytical transmission electron microscopy. It was found that each individual small M₂₃C₆ carbide starts to grow with a clear orientation relationship with the matrix, and film-like carbide was subsequently observed at the interfaces with asymmetric Cr-depleted zones. From these experimental results, a model describing the precipitation of M₂₃C₆ and the formation of the Cr-depleted zone was proposed.

Original language	English
Pages (from-to)	509-512
Number of pages	4
Journal	Scripta Materialia
Volume	65
Issue number	6
DOIs	https://doi.org/10.1016/j.scriptamat.2011.06.010
Publication status	Published - Sept 2011

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

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10.1016/j.scriptamat.2011.06.010

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title = "Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel",

abstract = "Formation of M23C6 carbides and chromium-depleted zones in commercially available type 304L stainless steel were investigated by in situ transmission electron microscopy and analytical transmission electron microscopy. It was found that each individual small M23C6 carbide starts to grow with a clear orientation relationship with the matrix, and film-like carbide was subsequently observed at the interfaces with asymmetric Cr-depleted zones. From these experimental results, a model describing the precipitation of M23C6 and the formation of the Cr-depleted zone was proposed.",

author = "Kenji Kaneko and Tatsuya Fukunaga and Kazuhiro Yamada and Nobuo Nakada and Masao Kikuchi and Zineb Saghi and Barnard, {Jon S.} and Midgley, {Paul A.}",

note = "Funding Information: We gratefully acknowledge the supply of type 304L austenite stainless steel from Nippon Steel & Sumikin Stainless Steel Corporation and financial support in part by a Grant-in-Aid for Scientific Research (No. 22360292 ) from the Iron and Steel Institute of Japan . P.A.M. thanks the Isaac Newton Trust for funding and the Royal Academy of Engineering and the Leverhulme Trust for the award of Senior Research Fellowships. P.A.M. and Z.S. thank the European Union for the financial support under the Framework 6 program for an Integrated Infrastructure Initiative. Ref.: 026019 ESTEEM.",

year = "2011",

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doi = "10.1016/j.scriptamat.2011.06.010",

language = "English",

volume = "65",

pages = "509--512",

journal = "Scripta Materialia",

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T1 - Formation of M23C6-type precipitates and chromium-depleted zones in austenite stainless steel

AU - Kaneko, Kenji

AU - Fukunaga, Tatsuya

AU - Yamada, Kazuhiro

AU - Nakada, Nobuo

AU - Kikuchi, Masao

AU - Saghi, Zineb

AU - Barnard, Jon S.

AU - Midgley, Paul A.

N1 - Funding Information: We gratefully acknowledge the supply of type 304L austenite stainless steel from Nippon Steel & Sumikin Stainless Steel Corporation and financial support in part by a Grant-in-Aid for Scientific Research (No. 22360292 ) from the Iron and Steel Institute of Japan . P.A.M. thanks the Isaac Newton Trust for funding and the Royal Academy of Engineering and the Leverhulme Trust for the award of Senior Research Fellowships. P.A.M. and Z.S. thank the European Union for the financial support under the Framework 6 program for an Integrated Infrastructure Initiative. Ref.: 026019 ESTEEM.

PY - 2011/9

Y1 - 2011/9

N2 - Formation of M23C6 carbides and chromium-depleted zones in commercially available type 304L stainless steel were investigated by in situ transmission electron microscopy and analytical transmission electron microscopy. It was found that each individual small M23C6 carbide starts to grow with a clear orientation relationship with the matrix, and film-like carbide was subsequently observed at the interfaces with asymmetric Cr-depleted zones. From these experimental results, a model describing the precipitation of M23C6 and the formation of the Cr-depleted zone was proposed.

AB - Formation of M23C6 carbides and chromium-depleted zones in commercially available type 304L stainless steel were investigated by in situ transmission electron microscopy and analytical transmission electron microscopy. It was found that each individual small M23C6 carbide starts to grow with a clear orientation relationship with the matrix, and film-like carbide was subsequently observed at the interfaces with asymmetric Cr-depleted zones. From these experimental results, a model describing the precipitation of M23C6 and the formation of the Cr-depleted zone was proposed.

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JO - Scripta Materialia

JF - Scripta Materialia

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Formation of M₂₃C₆-type precipitates and chromium-depleted zones in austenite stainless steel

Abstract

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