کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1576820 | 1514785 | 2012 | 9 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Study of anti-laser irradiation performance of shot-peened 40CrNiMoA alloy steel Study of anti-laser irradiation performance of shot-peened 40CrNiMoA alloy steel](/preview/png/1576820.png)
In this paper, shot-peening treatment was introduced to reinforce an alloy surface to protect it from laser irradiation, and experiments were carried out on 40CrNiMoA alloy steel. Macro-mechanical properties were studied and compared before and after both shot-peening and laser irradiation by conducting tensile and hardness measurements. Experimental results showed that the shot-peened alloy showed better mechanical properties after laser irradiation when compared to the alloy without shot-peening treatment. The enhanced ability of the shot-peened alloy for anti-laser irradiation was explained as due to the large residual compressive stress distributions over the shot-peening layer greatly reducing the thermal shock effect introduced by the laser. On the other hand, the growth of microstructures in specific shape absorbed the thermal energy during irradiation, giving a higher probability for the alloy to resist damage.
Journal: Materials Science and Engineering: A - Volume 558, 15 December 2012, Pages 675–683