کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
11020084 | 1717612 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Effect of laser power on oxygen and nitrogen concentration of commercially pure titanium manufactured by selective laser melting
ترجمه فارسی عنوان
اثر قدرت لیزر بر غلظت اکسیژن و نیتروژن تیتانیوم خالص تجاری تولید شده توسط ذوب لیزری انتخابی
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کلمات کلیدی
تولید افزودنی، ذوب لیزری انتخابی، تیتانیوم، اکسیداسیون، نیترید،
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
دانش مواد (عمومی)
چکیده انگلیسی
This study analyzed the variation of mechanical properties and its causes with increasing the laser power in the fabrication of pure titanium by selective laser melting (SLM). SLM samples were fabricated using commercially pure titanium grade 1 powder when the scan speed was 1000â¯mm/s and the laser power as 120, 200, 280, 360, and 440â¯W, respectively. As the laser power increased, the hardness and strength of the samples increased gradually. During the SLM processing, the concentrations of oxygen and nitrogen in the SLM samples were increased, which resulted in the increase of hardness and strength. The SLM equipment used in this study removed oxygen in the chamber by flowing high purity argon gas and fabricates the sample while preserving the oxygen concentration in the atmosphere to 0.2%. Evaluating the possibility of oxidation and nitriding during the SLM process by thermodynamic analysis, it was found that the process occurred under conditions in which temperature and residual oxygen and nitrogen partial pressure led to oxidation and nitriding.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Materials Characterization - Volume 143, September 2018, Pages 110-117
Journal: Materials Characterization - Volume 143, September 2018, Pages 110-117
نویسندگان
Tae-Wook Na, Won Rae Kim, Seung-Min Yang, Ohyung Kwon, Jong Min Park, Gun-Hee Kim, Kyung-Hwan Jung, Chang-Woo Lee, Hyung-Ki Park, Hyung Giun Kim,