کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
8011921 | 1516933 | 2017 | 7 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Microstructure and mechanical properties of Ti6Al4V alloy prepared by selective laser melting combined with precision forging
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کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
مهندسی مواد
فلزات و آلیاژها
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
To improve the mechanical properties of Ti6Al4V alloy prepared by selective laser melting (SLM) process, the precision forging was conducted at 950 °C and different strains and strain rates. The microstructure evolution of as-built samples and forged samples in both horizontal and vertical sections was visualized and analyzed by optical microscope and X-ray diffraction. The microstructure was improved by the precision forging and subsequent water quenching. The porosity in each section was accounted. It can be seen that high strain rate and large deformation result in low porosity, consequently contributing to a better fatigue performance. The micro-hardness was lowered after precision forging and water quenching, while the difference of microhardness between the horizontal and vertical sections became smaller, which illustrated that this process can improve the anisotropy of structural components fabricated by SLM.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Transactions of Nonferrous Metals Society of China - Volume 27, Issue 5, May 2017, Pages 1036-1042
Journal: Transactions of Nonferrous Metals Society of China - Volume 27, Issue 5, May 2017, Pages 1036-1042
نویسندگان
Qi ZHANG, Zheng-long LIANG, Miao CAO, Zi-fan LIU, An-feng ZHANG, Bing-heng LU,