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Grain refinement and microstructure evolution in aluminum A2618 alloy by high-pressure torsion
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نویسنده
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mohamed i.f. ,lee s. ,edalati k. ,horita z. ,abdullah s. ,omar m.z. ,wan zamri w.f.h.
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منبع
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jurnal teknologi - 2016 - دوره : 78 - شماره : 6-9 - صفحه:149 -152
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چکیده
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This work presents a study related to the grain refinement of an aluminum a2618 alloy achieved by high-pressure torsion (hpt) known as a process of severe plastic deformation (spd). the hpt is conducted on disks of the alloy under an applied pressure of 6 gpa for 1 and 5 turns with a rotation speed of 1 rpm at room temperature. the hpt processing leads to microstructural refinement with an average grain size of ~250 nm at a saturation level after 5 turns. gradual increases in hardness are observed from the beginning of straining up to a saturation level. this study thus suggests that hardening due to grain refinement is attained by the hpt processing of the a2618 alloy at room temperature. © 2016 penerbit utm press. all rights reserved.
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کلیدواژه
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Al alloy; Grain refinement; High-pressure torsion; Severe plastic deformation
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آدرس
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faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor,malaysia,department of materials science and engineering,faculty of engineering,kyushu university,fukuoka,japan,wpi,international institute for carbon-neutral energy research (wpi-i2cner),kyushu university,fukuoka, Japan, department of materials science and engineering,faculty of engineering,kyushu university,fukuoka,japan,wpi,international institute for carbon-neutral energy research (wpi-i2cner),kyushu university,fukuoka, Japan, department of materials science and engineering,faculty of engineering,kyushu university,fukuoka,japan,wpi,international institute for carbon-neutral energy research (wpi-i2cner),kyushu university,fukuoka, Japan, department of materials science and engineering,faculty of engineering,kyushu university,fukuoka,japan,wpi,international institute for carbon-neutral energy research (wpi-i2cner),kyushu university,fukuoka, Japan, faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor,malaysia,centre for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor darul ehsan, Malaysia, faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor,malaysia,centre for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor darul ehsan, Malaysia, faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor,malaysia,centre for automotive research,faculty of engineering and built environment,universiti kebangsaan malaysia ukm,bangi,selangor darul ehsan, Malaysia
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Authors
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