標題: A NEW PHASE IN AN FE-9.0AL-29.5MN-1.2SI ALLOY
作者: WU, CC
LIU, TF
機械工程學系
材料科學與工程學系
Department of Mechanical Engineering
Department of Materials Science and Engineering
公開日期: 1-Jun-1991
摘要: A new type of precipitate (designated L phase) was observed within the ferrite matrix in an Fe-9.0Al-29.5Mn-1.2Si alloy after being aged at 550-degrees-C. Transmission electron microscopy examinations indicated that the L-phase precipitate has a monoclinic structure with lattice parameters a = 0.656 nm, b = 0.797 nm, c = 0.637 nm, and beta = 109.4 deg, and the orientation relationship between the L-phase precipitate and the ferrite matrix could be stated as follows: (1BAR01)alpha-parallel-to (001)L-phase (1BAR10)alpha-parallel-to (1BAR11)L-phase with a deviation of 0.3 deg (011)alpha-parallel-to (131)L-phase with a deviation of 1.5 deg The L phase has never been observed in various Fe-Al-Mn, Fe-Mn-Si, Fe-Al-Si, and Mn-Al-Si alloy systems before.
URI: http://dx.doi.org/10.1007/BF02660673
http://hdl.handle.net/11536/3767
ISSN: 0360-2133
DOI: 10.1007/BF02660673
期刊: METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE
Volume: 22
Issue: 6
起始頁: 1417
結束頁: 1423
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