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Effect of aluminum on microstructure and properties of martensitic wear-resistant and heat-resistant steel

Sun, Yufu ; Lv, Yezhe LU orcid ; Wang, Liuli ; Shen, Jingjie ; Jia, Xiangcai and Zhao, Jingyu (2013) In Oxidation of Metals 80(1-2). p.113-124
Abstract

The effect of aluminum on microstructure and properties of martensitic wear-resistant and heat-resistant steels was investigated. The results indicate that as-cast microstructure of the specimens is composed of ferrite, pearlite and carbides. After quenching at 1,000 C and tempering at 600 C, the microstructure of the specimens consists of tempered sorbite and Fe-Cr-Al intermetallic compounds which distribute directionally in the matrix and increase with increase in Al content. The additions of Al enhance the ambient tensile strength which reaches the peak at 1,230 MPa when the specimens contain 1.97 % Al. Oxidation notably decreases with the increase of Al and the average oxidation rates reduce to 0.0095 g m-2 h-1... (More)

The effect of aluminum on microstructure and properties of martensitic wear-resistant and heat-resistant steels was investigated. The results indicate that as-cast microstructure of the specimens is composed of ferrite, pearlite and carbides. After quenching at 1,000 C and tempering at 600 C, the microstructure of the specimens consists of tempered sorbite and Fe-Cr-Al intermetallic compounds which distribute directionally in the matrix and increase with increase in Al content. The additions of Al enhance the ambient tensile strength which reaches the peak at 1,230 MPa when the specimens contain 1.97 % Al. Oxidation notably decreases with the increase of Al and the average oxidation rates reduce to 0.0095 g m-2 h-1 at 650 C and 0.0285 g m-2 h-1 at 800 C, respectively. Wear resistance of the specimens containing Al obviously increased when compared to the Al-free specimens.

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author
; ; ; ; and
publishing date
type
Contribution to journal
publication status
published
subject
keywords
Al, Microstructure, Oxidation resistance, Wear resistance, Wear-resistant and heat-resistant steel
in
Oxidation of Metals
volume
80
issue
1-2
pages
12 pages
publisher
Springer
external identifiers
  • scopus:84880333366
ISSN
0030-770X
DOI
10.1007/s11085-012-9320-8
language
English
LU publication?
no
id
a7f1fb2d-d080-4817-a172-7f25c148dc08
date added to LUP
2021-10-18 21:54:38
date last changed
2022-02-02 00:39:25
@article{a7f1fb2d-d080-4817-a172-7f25c148dc08,
  abstract     = {{<p>The effect of aluminum on microstructure and properties of martensitic wear-resistant and heat-resistant steels was investigated. The results indicate that as-cast microstructure of the specimens is composed of ferrite, pearlite and carbides. After quenching at 1,000 C and tempering at 600 C, the microstructure of the specimens consists of tempered sorbite and Fe-Cr-Al intermetallic compounds which distribute directionally in the matrix and increase with increase in Al content. The additions of Al enhance the ambient tensile strength which reaches the peak at 1,230 MPa when the specimens contain 1.97 % Al. Oxidation notably decreases with the increase of Al and the average oxidation rates reduce to 0.0095 g m<sup>-2</sup> h<sup>-1</sup> at 650 C and 0.0285 g m<sup>-2</sup> h<sup>-1</sup> at 800 C, respectively. Wear resistance of the specimens containing Al obviously increased when compared to the Al-free specimens.</p>}},
  author       = {{Sun, Yufu and Lv, Yezhe and Wang, Liuli and Shen, Jingjie and Jia, Xiangcai and Zhao, Jingyu}},
  issn         = {{0030-770X}},
  keywords     = {{Al; Microstructure; Oxidation resistance; Wear resistance; Wear-resistant and heat-resistant steel}},
  language     = {{eng}},
  number       = {{1-2}},
  pages        = {{113--124}},
  publisher    = {{Springer}},
  series       = {{Oxidation of Metals}},
  title        = {{Effect of aluminum on microstructure and properties of martensitic wear-resistant and heat-resistant steel}},
  url          = {{http://dx.doi.org/10.1007/s11085-012-9320-8}},
  doi          = {{10.1007/s11085-012-9320-8}},
  volume       = {{80}},
  year         = {{2013}},
}