کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1501938 993400 2008 4 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Shear deformation with imposed hydrostatic pressure for enhanced compaction of powder
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد سرامیک و کامپوزیت
پیش نمایش صفحه اول مقاله
Shear deformation with imposed hydrostatic pressure for enhanced compaction of powder
چکیده انگلیسی

In this paper equal channel angular extrusion with back pressure was used to compact Ti–6Al–4V powder at 400 °C, achieving relative densities of 98.3–98.6% and green strengths up to 750 MPa. The novelty of the approach arises from the notion that severe shear deformation is an important factor for consolidation. Improved compaction is related to enhanced self-diffusion through the creation of additional diffusion paths (defects) and the imposed hydrostatic pressure. The role of deformation mechanisms in improving compaction is discussed.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Scripta Materialia - Volume 58, Issue 10, May 2008, Pages 898–901
نویسندگان
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