کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1584155 1514899 2007 11 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Effects of silicon on the metallurgy and sintering response of Al-Ni-Mg PM Alloys
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Effects of silicon on the metallurgy and sintering response of Al-Ni-Mg PM Alloys
چکیده انگلیسی
In this investigation the effects of minor amounts of silicon on the sintering response, microstructure, and mechanical properties of experimental Al-Ni-Mg PM alloys were assessed. Associated experimental techniques included thermal dilatometry, pilot-level sintering trials, EPMA, XRD, apparent hardness measurements, and tensile testing. A sequential approach of study advancing through binary (Al-Mg), ternary (Al-Mg-Si and Al-Ni-Mg) and quaternary (Al-Ni-Mg-Si) systems was adopted. It was found that silicon additions promoted the formation of a persistent liquid phase and ultimately diffused into the α-aluminum grains. Only trace levels were detected in the Al3Ni intermetallic. Despite this limited chemical interaction, silicon significantly altered the morphology of Al3Ni in alloys of low nickel content. Silicon also imparted a natural age hardening effect in several alloys and positive gains in yield strength and UTS for all.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 452–453, 15 April 2007, Pages 688-698
نویسندگان
, , ,