Study of anti-laser irradiation performance of shot-peened 40CrNiMoA alloy steel
Study of anti-laser irradiation performance of shot-peened 40CrNiMoA alloy steel
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DOI：
10.1016/j.msea.2012.08.075
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发表时间：
2012-12
期刊：
影响因子：
6.4
通讯作者：
Zhanwei Liu;Ningning Wu;Xianfu Huang;H. Xie;Xintao Lv;Guang He
中科院分区：
文献类型：
--
作者：
Zhanwei Liu;Ningning Wu;Xianfu Huang;H. Xie;Xintao Lv;Guang He
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.
