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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2024.4
- 수록면
- 1,002 - 1,014 (13page)
- DOI
- 10.1007/s12540-023-01545-0
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초록· 키워드
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This paper examines the microstructure evolution and thermal properties of Al/Ti composites with different volume fractionsof Ti. The laminated composites were first fabricated by the accumulative roll bonding (ARB) process. The fabricatedcomposites were then stacked and bonded together by cold roll bonding process to produce Ti–Al functionally gradedcomposite. The microstructural investigation of ARBed composites revealed that plastic instabilities including necking andrupture took place within composites. As a result, the fragments of Ti were distributed uniformly across the Al matrix. Inaddition, the SEM images of the Al–Ti functionally graded composite showed a compositional gradient from the Al side tothe Ti side. Based on the EBSD maps taken from Al and Ti layers, the grain refinement was successfully achieved duringsix passes. Besides, with an increase in the volume fraction of Ti, the grains became finer, indicating the gradient in grainsize across Al–Ti functionally graded composite. Furthermore, the experimentally measured thermal properties of Al andTi sheets increased as a function of temperature while they declined by increasing passes. However, thermal conductivity,thermal diffusivity, coefficient of thermal expansion, and specific heat capacity of Al/Ti composites showed a reductionwith the rise of Ti content.
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