STUDY ON THE FORMATION OF GLOBULAR MICROSTRUCTURE IN 7075-AL ALLOY DURING STRAIN INDUCED MELT ACTIVATED (SIMA) PROCESS

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MAHMODI MOHAMAD; ALIZADEH MOSTAFA

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Journal: JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES Year:2017 | Volume:5 | Issue:4 Page(s): 19-28

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Title

STUDY ON THE FORMATION OF GLOBULAR MICROSTRUCTURE IN 7075-AL ALLOY DURING STRAIN INDUCED MELT ACTIVATED (SIMA) PROCESS

Author(s)

MAHMODI MOHAMAD | ALIZADEH MOSTAFA | Issue Writer Certificate

Keywords

ROLLINGQ1

SEMI-SOLIDQ2

AL-7075Q2

GLOBULAR MICROSTRUCTUREQ2

Abstract

Strain Induced Melt Activation (SIMA) process, is a SEMI-SOLID process to create globular grains in alloys. In this process, after applying a desired strain, the sample is heated up to SEMI-SOLID region and is hold for a desired time. In the present study, SIMA process was applied to form GLOBULAR MICROSTRUCTURE in 7075-Al alloy. The effects of strain value, strain temperature, SEMI-SOLID holding time and SEMI-SOLID holding temperature on the average grain size and shape factor were investigated. Optical and scanning electron microscopes were used to investigate the microstructure. The results revealed that, it is not possible to introduce a distinguished mechanism for generating the globular grains; while depending on the liquid fraction and strain value, there is a competition between recrystallization and internal melting of grains. Also, the results depicted that, in the SIMA process, the elongation would be increased with respect to T6 condition; while there is no considerable reducing in the strength.

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APA: Copy

MAHMODI, MOHAMAD, & ALIZADEH, MOSTAFA. (2017). STUDY ON THE FORMATION OF GLOBULAR MICROSTRUCTURE IN 7075-AL ALLOY DURING STRAIN INDUCED MELT ACTIVATED (SIMA) PROCESS. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, 5(4 ), 19-28. SID. https://sid.ir/paper/252371/en

Vancouver: Copy

MAHMODI MOHAMAD, ALIZADEH MOSTAFA. STUDY ON THE FORMATION OF GLOBULAR MICROSTRUCTURE IN 7075-AL ALLOY DURING STRAIN INDUCED MELT ACTIVATED (SIMA) PROCESS. JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES[Internet]. 2017;5(4 ):19-28. Available from: https://sid.ir/paper/252371/en

IEEE: Copy

MOHAMAD MAHMODI, and MOSTAFA ALIZADEH, “STUDY ON THE FORMATION OF GLOBULAR MICROSTRUCTURE IN 7075-AL ALLOY DURING STRAIN INDUCED MELT ACTIVATED (SIMA) PROCESS,” JOURNAL OF ADVANCED MATERIALS AND TECHNOLOGIES, vol. 5, no. 4 , pp. 19–28, 2017, [Online]. Available: https://sid.ir/paper/252371/en

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