Influence of titanium addition on the microstructure of the novel ferrous-based stainless steel

Chia Cheng Lin, Li Hsiang Lin, Jing Ming Hung, Yung Hsun Shih, Ching Zong Wu, Keng Liang Ou, Chih Yeh Chao

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The microstructural characteristics of the Fe-9Al-30Mn-1C-5Ti (wt.%) alloy were determined by scanning electron microscopy, transmission electron microscopy, and energy-dispersive X-ray spectrometry. The microstructure of the alloy was essentially a mixture of (γ + TiCx + (α + B2 + DO3)) phases during solution treatment between 950 °C and 1150 °C. The TiCx carbide had a face-center-cubic structure with a lattice parameter a of 0.432 nm. When the as-quenched alloy was subjected to aging treatment at temperatures of 450-850 °C, the following microstructural transformation occurred: (γ + TiCx + κ + (α + DO3)) → (γ + TiCx + κ + (α + B2 + DO3 + TiCx)) → (γ + TiCx + κ + κ′ + (α + B2 + DO3)) → (γ + TiC x + (α + B2 + DO3)). Addition of Ti promotes the formation of the α phase at high temperatures.

Original languageEnglish
Pages (from-to)9038-9044
Number of pages7
JournalJournal of Alloys and Compounds
Volume509
Issue number37
DOIs
Publication statusPublished - Sep 15 2011

Fingerprint

Stainless Steel
Titanium
Stainless steel
Microstructure
Lattice constants
Carbides
Aging of materials
Transmission electron microscopy
Temperature
Scanning electron microscopy

Keywords

  • Fe-Al-Mn-C-Ti alloy
  • Microstructure
  • Phase transformation
  • TiC carbide

ASJC Scopus subject areas

  • Mechanical Engineering
  • Mechanics of Materials
  • Materials Chemistry
  • Metals and Alloys

Cite this

Influence of titanium addition on the microstructure of the novel ferrous-based stainless steel. / Lin, Chia Cheng; Lin, Li Hsiang; Hung, Jing Ming; Shih, Yung Hsun; Wu, Ching Zong; Ou, Keng Liang; Chao, Chih Yeh.

In: Journal of Alloys and Compounds, Vol. 509, No. 37, 15.09.2011, p. 9038-9044.

Research output: Contribution to journalArticle

Lin, Chia Cheng ; Lin, Li Hsiang ; Hung, Jing Ming ; Shih, Yung Hsun ; Wu, Ching Zong ; Ou, Keng Liang ; Chao, Chih Yeh. / Influence of titanium addition on the microstructure of the novel ferrous-based stainless steel. In: Journal of Alloys and Compounds. 2011 ; Vol. 509, No. 37. pp. 9038-9044.
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