A new orientation relationship between M[sub 6]C carbide and the austenite matrix in an Fe-Mn-Al-Mo-C alloy

Journal Article · Thu Jul 01 04:00:00 EDT 1993 · Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States)

DOI:https://doi.org/10.1007/BF02646606· OSTI ID:6269643

Peng, S W; Tsai, T Y; Chou, C P ^[1]

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1. National Chiao Tung Univ., Hsinchu (Taiwan, Province of China). Dept. of Mechanical Engineering

In order to improve the strength and the corrosion resistance, molybdenum has been added to the Fe-Mn-Al-C alloys. However, little information concerning the microstructure of the Fe-Mn-Al-C alloys containing Mo has been provided until recent studies by the present authors. It was found that very complex carbide precipitation occurred in the Fe-Mn-Al-C alloy during aging at 700 C to 800 C. Within the austenite matrix of the alloy, precipitates of M[sub 23]C[sub 6], M[sub 6]C, and M[sub 2]C carbides were observed and identified. The orientation relationship between M[sub 6]C and austenite can be cube-on-cube or twin-related depending upon whether M[sub 6]C is formed directly from the austenite or indirectly from the existing M[sub 23]C[sub 6] carbide.

• OSTI ID: 6269643
• Journal Information: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States), Journal Name: Metallurgical Transactions, A (Physical Metallurgy and Materials Science); (United States) Vol. 24:7; ISSN 0360-2133; ISSN MTTABN
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360102* -- Metals & Alloys-- Structure & Phase Studies
AGING
ALLOYS
ALUMINIUM ALLOYS
AUSTENITE
CARBIDES
CARBON ADDITIONS
CARBON COMPOUNDS
ELEMENTS
HEAT TREATMENTS
IRON ALLOYS
IRON BASE ALLOYS
MANGANESE ALLOYS
METALLURGICAL EFFECTS
METALS
MICROSTRUCTURE
MOLYBDENUM
MOLYBDENUM ALLOYS
ORIENTATION
PRECIPITATION
SEPARATION PROCESSES
TRANSITION ELEMENTS