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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2018.1
- 수록면
- 681 - 692 (12page)
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초록· 키워드
오류제보하기
α/γ phase transformations occurring in Fe–10Cu–xNi alloys (0 ≤ x ≤ 15 in mass%) were studied using X-ray diff raction,scanning electron microscopy, electron back scattered diff raction, transmission electron microscopy and chemical analysis,combining X-ray microanalysis with energy dispersive spectrometry in the scanning electron microscope and electron microprobeanalysis with wavelength dispersive spectrometry. The infl uence of cooling rate on the microstructure was investigatedusing ice-brine quenching and 2 °C/min slow cooling rate performed with dilatometry. Ni addition induces metastabletransformations on cooling: massive and bainitic ferrite are formed depending on the alloy composition and cooling rate. Moreover, most of the Cu phase precipitates on cooling giving rise to a fi ne distribution of Cu particles in the ferrite grains. For both cooling conditions, the hardness increases with increasing Ni content and a higher hardness is obtained in thequenched alloy for each composition. The change in hardness is correlated to the Effect of Ni solid solution, transformationstructure and size of Cu particles.
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