کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11004146 | 1468626 | 2018 | 19 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure evolution of 316L produced by HP-SLM (high power selective laser melting)
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی صنعتی و تولید
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
This work aims at better understanding the interaction of a 1âkW top-hat power distribution laser on a well know material, 316âL stainless steel. The influence of texture and microstructure on relative density and crack density, when varying scan rotation, was evaluated. The high power (HP) laser and low power (LP) laser were compared with respect to microstructure and mechanical properties. HP leads to an increase in morphological and crystallographic texture together with a coarsening of the cell structure in contrast to the more random and finer cells found in LP processed material. Hot isostatic pressing was applied as a post-process treatment in order to close remaining pores and cracks. This helped in achieving higher elongations for LP and HP processed materials, while competitive mechanical properties to the 316âL material specifications were obtained in both cases.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Additive Manufacturing - Volume 23, October 2018, Pages 402-410
Journal: Additive Manufacturing - Volume 23, October 2018, Pages 402-410
نویسندگان
Maria L. Montero-Sistiaga, Miguel Godino-Martinez, Kurt Boschmans, Jean-Pierre Kruth, Jan Van Humbeeck, Kim Vanmeensel,