Influence of the precipitated phases in Al-4%Cu alloys processed in the high magnetic field and cryogenic treatment

다국어 초록 (Multilingual Abstract)

Transformation of materials under high magnetic field is much different compared with conventional condition. There is big significant in materials science investigating transformation behavior of materials under high magnetic field. Aluminium copper alloys are one kind of typical precipitation hardening alloy which has been widely used in industry. It is interesting to investigate transformation behavior of such kind of alloys under high magnetic field.
The author prepared the Al-4%Cu alloy using crucible electrical resistance furnace in order to further the research of the Al-Cu binary alloy. The analysis techniques such as optical microscopy (OM), Vickers micro-hardness, and X-ray diffraction and transmission electron microscopy (TEM) were employed in this dissertation. Firstly the Al-4%Cu alloys which annealed at 180 ℃ are briefly studies. Then the precipitating behavior of second phases in specimens that aged with and without high magnetic field and through cryogenic treatment were analyzed and discussed mainly based on the comparison of experimental results of Vickers micro-hardness testing and XRD analysis respectively.

목차 (Table of Contents)

• Abstract
• 1. Introduction
• 2. Experimential material and method
• 3. Experimential result
• 4. Conclusions
• 5. Reference