Browsing by Author "CHOU, JS"

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COMPUTER CLASSIFICATION OF THE PCG WAVE-FORM
(1990-03-01)
LEE, AC
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CHOU, JS
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交大名義發表
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機械工程學系
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National Chiao Tung University
EFFECT OF SI ADDITION ON THE MICROSTRUCTURE OF AN FE-8.0AL-29.0MN-0.90C ALLOY
(1990-07-01)
LIU, TF
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CHOU, JS
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WU, CC
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機械工程學系
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材料科學與工程學系
EFFECTS OF CARBON CONTENTS ON THE TENSILE PROPERTIES AND DEFORMED MICROSTRUCTURES OF AUSTENITIC FE-28MN-9AL-XC ALLOYS
(1992-11-01)
CHOU, JS
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CHAO, CG
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機械工程學系
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材料科學與工程學系
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Department of Mechanical Engineering
OBSERVATIONS OF DEFORMATION TWINS IN HIGH-TEMPERATURE TENSILE TESTS OF AN FE-28.0MN-7.5A1-0.75C-ALLOY
(1992-01-15)
CHOU, JS
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CHAO, CG
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機械工程學系
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材料科學與工程學系
;
Department of Mechanical Engineering
PHASE-TRANSFORMATION IN AN FE-10.1AL-28.6MN-O.46C ALLOY
(1991-10-01)
WU, CC
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CHOU, JS
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LIU, TF
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機械工程學系
;
材料科學與工程學系
The microstructure of an (alpha + gamma) duplex Fe-10.1A1-28.6Mn-0.46C alloy has been investigated by means of optical microscopy and transmission electron microscopy (TEM). In the as-quenched condition, extremely fine D0(3) particles could be observed within the ferrite phase. During the early stage of isothermal aging at 550-degrees-C, the D0(3) particles grew rapidly, especially the D0(3) particles in the vicinity of the alpha/gamma grain boundary. After prolonged aging at 550-degrees-C, coarse K-phase (Fe, Mn)3AlC precipitates began to appear at the regions contiguous to the D0(3) particles, and beta-Mn precipitates occurred on the alpha/gamma and alpha/alpha grain boundaries. Subsequently, the grain boundary beta-Mn precipitates grew into the adjacent austenite grains accompanied by a gamma --> alpha + beta-Mn transition. When the alloy was aged at 650-degrees-C for short times, coarse K-phase precipitates were formed on the alpha/gamma grain boundary. With increasing the aging time, the alpha/gamma grain boundary migrated into the adjacent austenite grain, owing to the heterogeneous precipitation of the Mn-enriched K phase on the grain boundary. However, the alpha/gamma grain boundary migrated into the adjacent ferrite grain, even though coarse K-phase precipitates were also formed on the alpha/gamma grain boundary in the specimen aged at 750-degrees-C.
SEGMENTATION OF PIECEWISE STATIONARY SIGNALS
(1989-10-01)
LEE, AC
;
CHOU, JS
;
交大名義發表
;
機械工程學系
;
National Chiao Tung University
TENSILE PROPERTIES OF A DO3-CONTAINING FE-MN-AL-SI-C ALLOY AT ELEVATED-TEMPERATURES
(1992-05-01)
CHOU, JS
;
CHAO, CG
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機械工程學系
;
材料科學與工程學系
;
Department of Mechanical Engineering