کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
830106 1470350 2013 6 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Direct laser fabrication of three dimensional components using SC420 stainless steel
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی مهندسی (عمومی)
پیش نمایش صفحه اول مقاله
Direct laser fabrication of three dimensional components using SC420 stainless steel
چکیده انگلیسی

Direct Laser Fabrication (DLF) has been used in the fabrication of three-dimensional (3D) near net-shape metallic parts using stainless steel SC420 powder. The mechanical properties and microstructure of the as-deposited SC420 and of hot isostatically pressed DLF builds were investigated as a function of deposition direction and sample size using tensile testing, scanning electron microscopy and X-ray diffraction. The influence of the build geometry and orientation on the microstructure and the mechanical properties was also assessed. From this work, it was evident that the DLF process can produce three dimensional parts with good mechanical properties (yield strength > 1000 MPa, tensile strength > 1400 MPa, elongation > 5%), which approach the properties of wrought products.


► The feasibility of direct laser fabrication of SC402 alloy was studied.
► Three-dimensional (3D) components with varying thicknesses can be built using DLF to near net-shape.
► The build size and orientation affects the mechanical properties.
► Hot isostatic pressing can be used to homogenise the mechanical properties.

ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials & Design - Volume 47, May 2013, Pages 731–736
نویسندگان
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