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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2019.1
- 수록면
- 1,246 - 1,257 (12page)
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초록· 키워드
오류제보하기
To obtain the designed target microstructures of an aged superalloy during isothermal forging, a multi-level processingparameters optimization method is developed based on particle swarm optimization (PSO) algorithm. In the developedmethod, the accurate material models are used to characterize the microstructural evolution. Based on the designed targetmicrostructures, the global and local optimality criterions are constructed to alternately optimize global and local multi-levelprocessing parameters by the PSO algorithm with a linear decreasing inertia weight strategy. The optimized initial volumefraction of δ phase (δVF), deformation temperature and strain rate are 12.95%, 1000 °C and 0.001 s−1, respectively. Accordingto these optimized parameters, the recrystallization volume fraction, average grain size and δVF are 100%, 11.2 μm and2.1%, respectively, which well agree with the designed targets. Additionally, the processing parameters optimized by thedeveloped method and traditional processing maps are compared. It is found that the developed method is more effective tocontrol microstructures for the studied superalloy.
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참고문헌 (63)
참고문헌 신청
Y. C. Lin / 2011 / A critical review of experimental results and constitutive descriptions for metals and alloys in hot working / Mater. Des 32:1733~1759
M. S. Chen / 2019 / New insights on the relationship between flow stress softening and dynamic recrystallization behavior of magnesium alloy AZ31B / Mater. Charact 147:173~183
김현기 / 2015 / Inverse Characterization Method for Mechanical Properties of Strain/Strain-Rate/ Temperature/Temperature-History Dependent Steel Sheets and Its Application for Hot Press Forming / Metals and Materials International 21(5):874~890
Q. W. Wang / 2019 / Precipitation behavior of a β-quenched Ti–5Al–5Mo–5V–1Cr–1Fe alloy during high-temperature compression / Mater. Charact 151:358~367
D. Samantaray / 2011 / A critical comparison of various data processing methods in simple uni-axial compression testing / Mater. Des 32:2797~2802
M. S. Chen / 2019 / New insights on the relationship between flow stress softening and dynamic recrystallization behavior of magnesium alloy AZ31B / Mater. Charact 147:173~183
김현기 / 2015 / Inverse Characterization Method for Mechanical Properties of Strain/Strain-Rate/ Temperature/Temperature-History Dependent Steel Sheets and Its Application for Hot Press Forming / Metals and Materials International 21(5):874~890
Q. W. Wang / 2019 / Precipitation behavior of a β-quenched Ti–5Al–5Mo–5V–1Cr–1Fe alloy during high-temperature compression / Mater. Charact 151:358~367
D. Samantaray / 2011 / A critical comparison of various data processing methods in simple uni-axial compression testing / Mater. Des 32:2797~2802
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