کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
7129654 | 1461599 | 2018 | 8 صفحه PDF | دانلود رایگان |
عنوان انگلیسی مقاله ISI
Deformation of single and multiple laser peened TC6 titanium alloy
دانلود مقاله + سفارش ترجمه
دانلود مقاله ISI انگلیسی
رایگان برای ایرانیان
کلمات کلیدی
موضوعات مرتبط
مهندسی و علوم پایه
سایر رشته های مهندسی
مهندسی برق و الکترونیک
پیش نمایش صفحه اول مقاله
چکیده انگلیسی
Laser peening without coating (LPwC) was done on the titanium TC6 alloy at a wavelength of 532â¯nm using an Nd:YAG laser. The laser power densities of 3, 6 and 9â¯GWâ¯cmâ2 were used to peen the samples. Samples were also peened multiple times (1, 3 and 5 passes) at 6â¯GWâ¯cmâ2. Microhardness showed an overall 23% increase from the baseline value. Further, softening of α phase in the bulk was observed above 6â¯GWâ¯cmâ2 in the samples peened once and above 1 pass in multiply peened samples. A similar trend was observed from the residual stress analysis of the samples. The maximum compressive residual stress was â1780â¯MPa at a depth of 50â¯Î¼m at 9â¯GWâ¯cmâ2. The observed softening of α phase was proposed due to adiabatic heating. Microstructural changes due to adiabatic heating resulting in increased β volume fractions were observed and confirmed by synchrotron radiation measurements.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Optics & Laser Technology - Volume 100, 1 March 2018, Pages 309-316
Journal: Optics & Laser Technology - Volume 100, 1 March 2018, Pages 309-316
نویسندگان
A. Umapathi, S. Swaroop,