کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
1585180 1514909 2006 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Deformation characteristics of the 93W–4.9Ni–2.1Fe tungsten heavy alloy deformed by hydrostatic extrusion
موضوعات مرتبط
مهندسی و علوم پایه مهندسی مواد دانش مواد (عمومی)
پیش نمایش صفحه اول مقاله
Deformation characteristics of the 93W–4.9Ni–2.1Fe tungsten heavy alloy deformed by hydrostatic extrusion
چکیده انگلیسی

The microstructures evolution, the mechanical properties and the fracture characteristics of the 93W–4.9Ni–2.1Fe tungsten heavy alloys deformed by hydrostatic extrusion with an equal-strain contour concave die were investigated. The strengthening mechanism of the extruded specimens was characterized using a quantitative metallographical technology, scanning electron microscope and a 200 kV transmission electron microscope. Through the research it can be concluded that the increase of the dislocation density in tungsten grains and in matrix, the appearance of the sub-grains in tungsten grains, the decrease of the axial contiguity of the tungsten grains, the increase of the tungsten grain's cleavage proportion in fracture aspect of tungsten alloy are the main factors to strength tungsten alloy.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Science and Engineering: A - Volumes 435–436, 5 November 2006, Pages 632–637
نویسندگان
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