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  1. 060 工学部
  2. 0601 学術論文

Effects of Microalloying on the Impact Toughness of Ultrahigh-Strength TRIP-Aided Martensitic Steels

http://hdl.handle.net/10091/18110
11244890-b11e-4593-804c-285f264e285b
名前 / ファイル ライセンス アクション
Effects_of_Microalloying_on_the_Impact_Toughness.pdf Effects_of_Microalloying_on_the_Impact_Toughness.pdf (1.8 MB)
Item type 学術雑誌論文 / Journal Article(1)
公開日 2015-02-20
タイトル
言語 en
タイトル Effects of Microalloying on the Impact Toughness of Ultrahigh-Strength TRIP-Aided Martensitic Steels
言語
言語 eng
資源タイプ
資源 http://purl.org/coar/resource_type/c_6501
タイプ journal article
著者 Kobayashi, Junya

× Kobayashi, Junya

WEKO 37380

Kobayashi, Junya

Search repository
Ina, Daiki

× Ina, Daiki

WEKO 37381

Ina, Daiki

Search repository
Nakajima, Yuji

× Nakajima, Yuji

WEKO 37382

Nakajima, Yuji

Search repository
Sugimoto, Koh-Ichi

× Sugimoto, Koh-Ichi

WEKO 37383

Sugimoto, Koh-Ichi

Search repository
信州大学研究者総覧へのリンク
氏名 Sugimoto, Koh-Ichi
URL http://soar-rd.shinshu-u.ac.jp/profile/ja.jCApjekV.html
出版者
出版者 SPRINGER
引用
内容記述タイプ Other
内容記述 METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE. 44A(11):5006-5017 (2013)
書誌情報 METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE

巻 44A, 号 11, p. 5006-5017, 発行日 2013-11
抄録
内容記述タイプ Abstract
内容記述 The effects of the addition of Cr, Mo, and/or Ni on the Charpy impact toughness of a 0.2 pct C-1.5 pct Si-1.5 pct Mn-0.05 pct Nb transformation-induced plasticity (TRIP)-aided steel with a lath-martensite structure matrix (i.e., a TRIP-aided martensitic steel or TM steel) were investigated with the aim of using the steel in automotive applications. In addition, the relationship between the toughness of the various alloyed steels and their metallurgical characteristics was determined. When Cr, Cr-Mo, or Cr-Mo-Ni was added to the base steel, the TM steel exhibited a high upper-shelf Charpy impact absorbed value that ranged from 100 to 120 J/cm2 and a low ductile–brittle fracture appearance transition temperature that ranged from 123 K to 143 K (−150 °C to −130 °C), while also exhibiting a tensile strength of about 1.5 GPa. This impact toughness of the alloyed steels was far superior to that of conventional martensitic steel and was caused by the presence of (i) a softened wide lath-martensite matrix, which contained only a small amount of carbide and hence had a lower carbon concentration, (ii) a large amount of finely dispersed martensite-retained austenite complex phase, and (iii) a metastable retained austenite phase of 2 to 4 vol pct in the complex phase, which led to plastic relaxation via strain-induced transformation and played an important role in the suppression of the initiation and propagation of voids and/or cleavage cracks.
資源タイプ(コンテンツの種類)
内容記述タイプ Other
内容記述 Article
ISSN
収録物識別子タイプ ISSN
収録物識別子 1073-5623
書誌レコードID
収録物識別子タイプ NCID
収録物識別子 AA10987657
DOI
関連識別子
識別子タイプ DOI
関連識別子 https://doi.org/10.1007/s11661-013-1882-9
関連名称
関連名称 10.1007/s11661-013-1882-9
権利
権利情報 The final publication is available at www.springerlink.com
出版タイプ
出版タイプ AM
出版タイプResource http://purl.org/coar/version/c_ab4af688f83e57aa
WoS
表示名 Web of Science
URL http://gateway.isiknowledge.com/gateway/Gateway.cgi?&GWVersion=2&SrcAuth=ShinshuUniv&SrcApp=ShinshuUniv&DestLinkType=FullRecord&DestApp=WOS&KeyUT=000324822100017
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