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Iranian Journal of Materials Science and Engineering، جلد ۱۷، شماره ۳، صفحات ۳۰-۳۹
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چکیده فارسی مقاله
کلیدواژه‌های فارسی مقاله
عنوان انگلیسی Significant Increase in Strength and Elongation of Al-3.7 Cu-1Mg Alloy Via Short Age Treatment Cycle
چکیده انگلیسی مقاله In this paper, the effect of two-step precipitation hardening on the mechanical properties of Al-3.7Cu-1Mg was investigated. For this meaning, some specimens were subjected to the first step aging at 175, 190 and 205°C for 2 h, once the samples solution treated at 500°C. To have stable precipitates uniformly distributed in the microstructure and to reduce the heat treatment time, the second step was implied at 65°C. The tensile and hardness tests were performed at ambient temperature immediately after aging. The results indicated that depending on the first step temperature, the second aging time affects the alloy mechanical behavior in different aspects. A factor named SNMP introduced to determine the cycle giving the best mechanical properties. The strength and elongation increase 1.5 and 2 times respectively; compared to the values reported in the DIN EN 755-2 standard by performing the two-step aging cycle, consisting of the first-stage at 175°C and the second step at 65°C for 10 hours. Moreover, using the proposed two-step aging, the heat treatment time was reduced considerably compared to the conventional precipitation hardening process.
کلیدواژه‌های انگلیسی مقاله Aluminum alloy,Two-step aging,Mechanical properties,SNMP,Aging time
نویسندگان مقاله | B. Mirzakhani
Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran.


| Y. Payandeh
Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran.


| H. Talebi
Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran.


| M. Maleki
Department of Materials Science and Engineering, Faculty of Engineering, Arak University, Arak 38156-8-8349, Iran.
نشانی اینترنتی http://ijmse.iust.ac.ir/browse.php?a_code=A-10-989-1&slc_lang=en&sid=1
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کد مقاله (doi)
زبان مقاله منتشر شده en
موضوعات مقاله منتشر شده گروه مکانیکی و شکل دادن
نوع مقاله منتشر شده Research Paper
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