affected layer meaning in English

加工变质层
损伤层
影响层

It is common considered that the more the half width is high , the more its hardness is based on the fact that the half high width of the shot peening affected layer in hard state decreases many scholars engaged in investigation of shot peening technology proposed that the shot peening affected layer is work softened
许多从事喷丸研究的学者从硬状态材料喷丸影响层半高宽减小的实验事实提出喷丸影响层发生了“加工软化”的观点，实验选用超高强度钢为实验材料，对其不同硬度的实验结果发现，喷丸使硬状态表面的半高宽大幅度减小，但使它们的表面屈服强度得到了提高。