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: | 1-六月-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 |
顯示於類別: | 期刊論文 |