The as-quenched microstructures of Fe-9Al-30Mn-1.2C-xSi alloys

Journal Article · Tue Apr 15 00:00:00 EDT 1997 · Scripta Materialia

DOI:https://doi.org/10.1016/S1359-6462(96)00468-X· OSTI ID:477126

Hwang, C N; Liu, T F ^[1]

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1. National Chiao Tung Univ., Hsinchu (Taiwan, Province of China). Inst. of Materials Science and Engineering

The microstructures and the mechanical properties of the austenitic Fe-Al-Mn-C alloys have been studied by many workers. Recently, the authors have made transmission electron microscopy observations on the phase transformations of an Fe-8 wt pct Al-29 wt pct Mn-0.9 wt pct C alloy containing 1.5 wt pct Si[22]. In the previous study, they have shown that the as-quenched microstructure of the alloy was a mixture of austenite and ferrite phases, and extremely fine DO{sub 3} particles were formed within the ferrite matrix. This result is quite different from that observed by other workers in the Fe-Al-Mn-C and Fe-Al-Mn-C-Si alloys. Extending this work, it is interesting to study successively the effects of silicon content on the as-quenched microstructures of the Fe-Al-Mn-C alloy. Therefore, the purpose of this work is an attempt to study the as-quenched microstructures of the Fe-9Al-30Mn-1.2C alloy with 0, 0.5, 1.0, 1.5 and 2.5 silicon contents, respectively.

• Sponsoring Organization: National Science Council, Taipei (Taiwan, Province of China)
• OSTI ID: 477126
• Journal Information: Scripta Materialia, Vol. 36, Issue 8; Other Information: PBD: 15 Apr 1997
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
MICROSTRUCTURE
IRON BASE ALLOYS
ALUMINIUM ALLOYS
MANGANESE ALLOYS
SILICON ALLOYS
CARBON
SAMPLE PREPARATION
QUENCHING
CHEMICAL COMPOSITION
AUSTENITE
FERRITE