期刊文献+
共找到1篇文章
< 1 >
每页显示 20 50 100
Effect of solidification cooling rate on microstructure and tribology characteristics of Zn-4Si alloy
1
作者 F.Akbari M.Golkaram +5 位作者 S.Beyrami G.Shirazi K.Mantashloo R.Taghiabadi m.saghafi yazdi I.Ansarian 《International Journal of Minerals,Metallurgy and Materials》 SCIE EI CAS CSCD 2024年第2期362-373,共12页
The main objective of this work was to modify the microstructure and enhance the tribological properties of a new Zn-4Si al-loy through a high solidification cooling rate(SCR).According to the results,by increasing th... The main objective of this work was to modify the microstructure and enhance the tribological properties of a new Zn-4Si al-loy through a high solidification cooling rate(SCR).According to the results,by increasing the SCR from 2.0 to 59.5℃/s the average size of primary Si particles and that of the grains reduced from 76.1 and 3780μm to less than about 14.6 and 460μm,respectively.Augment-ing the SCR also enhanced the microstructural homogeneity,decreased the porosity content(by 50%),and increased the matrix hardness(by 36%).These microstructural changes enhanced the tribological behavior.For instance,under the applied pressure of 0.5 MPa,an in-crease in the SCR from 2.0 to 59.5℃/s decreased the wear rate and the average friction coefficient of the alloy by 57%and 23%,respect-ively.The wear mechanism was also changed from the severe delamination,adhesion,and abrasion in the slowly-cooled alloy to the mild tribolayer delamination/abrasion in the high-cooling-rate-solidified sample. 展开更多
关键词 zinc-silicon alloy primary silicon solidification cooling rate TRIBOLOGY sliding wear
下载PDF
上一页 1 下一页 到第
使用帮助 返回顶部