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논문 기본 정보

자료유형
학술대회자료
저자정보
M. Alipour (University of Tehran) M. Emamy (University of Tehran) M. Azarbarmas (University of Tehran) M. karamouz (University of Tehran)
저널정보
한국소성·가공학회 기타자료 NUMIFORM 2010
발행연도
2010.6
수록면
1,060 - 1,072 (13page)

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초록· 키워드

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This study was undertaken to investigate the influence of Al?5Ti?1B master alloy on the structural characteristics of Al?12Zn?3 Mg?2.5Cu aluminum alloy. The optimum amount of Ti containing master alloy for proper grain refining was selected as 6 wt.%. A modified strain-induced, melt-activated (SIMA) process for semi-solid processing of alloys was proposed. In order to examine the effectiveness of the modified SIMA process, the recrystallized microstructures of the Al alloy (Al?12Zn?3 Mg?2.5Cu) prepared by the modified SIMA processes were macroscopically. The modified SIMA process employed casting, warm multi-forging, recrystallization and partial melting instead of the conventional process. Reheating condition to obtain a fine globular microstructure was optimized. The microstructure evolution of reheated Al?12Zn?3 Mg?2.5Cu aluminum alloy was characterized by SEM (Scanning electron microscopy) and optical microscopy. In this study the relation between the induced strain with size and shape of grain size has been studied. Results indicated that with the increase of strain sphericity of particles, their size decreases and sphericity takes place in less reahiting time.

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Abstract
INTRODUCTION
EXPERIMENTAL PROCEDURE
RESULTS AND DISCUSSION
SIMULATION
CONCLUSIONS
REFERENCES

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UCI(KEPA) : I410-ECN-0101-2014-550-003326827