Study on crystallization of rapid solidified ribbons of (Al90Ni8Zr2)98Mm2 alloy

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ASGARI BIDHENDI HAMIDREZA; Gholamipour Reza; Shahri Farzad

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Journal: METALLURGICAL ENGINEERING Year:2018 | Volume:21 | Issue:1 (69) Page(s): 4-9

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Title

Study on crystallization of rapid solidified ribbons of (Al90Ni8Zr2)98Mm2 alloy

Author(s)

ASGARI BIDHENDI HAMIDREZA | Gholamipour Reza | Shahri Farzad | Issue Writer Certificate

Keywords

Amorphous Aluminum AlloyQ1

Activation EnergyQ2

CrystallizationQ3

Melt-spinningQ2

Abstract

In the present study, Crystallization behavior of amorphous (Al90Ni8Zr2)98MM2 alloy have been investigated using X-ray diffraction, differential scanning calorimetry (DSC) and micro-hardness test. For this purpose, amorphous ribbons were manufactured using a Melt-spinning apparatus. The average thickness of the produced ribbon was 20 micrometers. The results of the kinetic test showed that the Crystallization in the amorphous alloy (Al90Ni8Zr2)98MM2 occurs at least in three steps. DSC graphs were analyzed using Kissinger's method and the Activation Energy for the first, second and a third stage of Crystallization was 331, 241, and 330 kJ/mole, respectively. The results of micro-hardness test showed that the amorphous phase hardness at room temperature was 413 Vickers, which was reduced to 276Hv by isothermal heat treatment at temperatures close to first transformation temperatures. It has been observed that, after heat treatment at a temperature above α-Al phase transformation temperature, the hardness increases to 453Hv. Formation of intermetallic phases at 800K, cause the hardness drop to 269Hv.

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APA: Copy

ASGARI BIDHENDI, HAMIDREZA, Gholamipour, Reza, & Shahri, Farzad. (2018). Study on crystallization of rapid solidified ribbons of (Al90Ni8Zr2)98Mm2 alloy. METALLURGICAL ENGINEERING, 21(1 (69) ), 4-9. SID. https://sid.ir/paper/409342/en

Vancouver: Copy

ASGARI BIDHENDI HAMIDREZA, Gholamipour Reza, Shahri Farzad. Study on crystallization of rapid solidified ribbons of (Al90Ni8Zr2)98Mm2 alloy. METALLURGICAL ENGINEERING[Internet]. 2018;21(1 (69) ):4-9. Available from: https://sid.ir/paper/409342/en

IEEE: Copy

HAMIDREZA ASGARI BIDHENDI, Reza Gholamipour, and Farzad Shahri, “Study on crystallization of rapid solidified ribbons of (Al90Ni8Zr2)98Mm2 alloy,” METALLURGICAL ENGINEERING, vol. 21, no. 1 (69) , pp. 4–9, 2018, [Online]. Available: https://sid.ir/paper/409342/en

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