文献类型：期刊文献

英文题名：Study on the friction and wear properties of 7075-T6 aluminum alloy enhanced by milling and ultrasonic impact treatment

作者：Zhang, Ping[1];Zhang, Songting[1];Ge, Shuai[1];Jiang, Xiaomin[1];Chen, Xue[1]

机构：[1]Guangdong Ocean Univ, Coll Mech & Power Engn, Zhanjiang, Peoples R China

年份：2024

卷号：230

外文期刊名：VACUUM

收录：SCI-EXPANDED(收录号：WOS:001342405300001)、、EI(收录号：20244317229638)、Scopus(收录号：2-s2.0-85206509910)、WOS

基金：The authors gratefully acknowledge the financial support provided by various organizations. In particular, they wish to thank the National Natural Science Foundation of China (Grant Nos. 51,705,270) and the Research Start-up Fund of Guangdong Ocean University.

语种：英文

外文关键词：7075-T6 aluminum alloy; Ultrasonic impact treatment; Friction and wear; Finite element simulation; Milling

外文摘要：This study investigates the effects of milling parameters on the surface friction behavior of 7075-T6 aluminum alloy subjected to ultrasonic impact treatment. A three-dimensional milling and friction-wear model was developed using ABAQUS finite element analysis, examining the influence of milling speed, depth, and feed rate on the coefficient of friction, wear volume, and surface morphology through single-factor experiments. Results indicate that milling parameters affect the friction coefficient in the following order: Vc > f > ap. Specifically, increasing milling speed from 35 m/min to 59 m/min raises the average friction coefficient from 0.305 to 0.387, a 26.88 % increase. At a milling speed of 83 m/min, the friction coefficient and wear volume reach their lowest values of 0.305 and 0.977 mm(3), respectively. The wear volume decreases with increasing milling speed and feed rate, while milling depth has a minor effect. The most significant reduction in wear volume, from 5.76 mm(3) to 0.977 mm3 (an 83.04 % decrease), occurs as milling speed increases from 35 m/min to 83 m/min. Maximum longitudinal slip during the reciprocating motion primarily occurs at the ends, with both positive and negative peak offsets. Surface damage from 304 stainless steel balls against the 7075-T6 alloy involves adhesive and abrasive wear. At a milling depth of 35 mu m, friction-induced compounds in the transfer film mainly consist of Al, C, Fe, Zn, Mg, and Cr.