کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1585309 1514914 2006 12 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Microstructural characterization of Al-7075-T651 chips and work pieces produced by high-speed machining
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Microstructural characterization of Al-7075-T651 chips and work pieces produced by high-speed machining
چکیده انگلیسی

High-speed orthogonal machining produced a series of Al-7075-T651 chips and work pieces for microstructural charcterization. The orthogonal machining conditions included two rake angles, three cuttings speeds, and a constant feed rate. The chips and work pieces were characterized using optical metallography, transmission electron microscopy (TEM), and microhardness measurements. TEM observations indicated growth of the η′ precipitates and showed recrystallized equiaxed grains within the shear bands of the chips. Microhardness profiles of the work pieces showed a decrease in hardness at the work surface. The thickness of this deformation layer increased with cutting speed. Microstructural characterizations were correlated with calculated temperature–time profiles to investigate possible mechanisms for the observed microstructure changes.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volume 430, Issues 1–2, 25 August 2006, Pages 15–26
نویسندگان
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