Abstract The operational safety and reliability of a variable gauge train are affected by the anti-fretting wear performance locking mechanism. main purpose this study is to optimize surface treatment process for pin material under actual service conditions alleviate fretting damage. Based on two basic principles strengthening friction reduction, substrate (AISI 4135 steel) was treated laser qu...

second chapters of the books, jami‘ al-alh?an, maq?s?id al-alh?an and sharh?-i adwar that are all important compilations dealing with music have written by ‘abd al-qadir maraghi appropriates to fretting the string instruments. maraghi has mentioned various methods, which are mainly based on s?af? al-din urmawi’s views, for determining the ratio between the notes, yet he has also contributed sev...

Abstract The fatigue process under fretting conditions is characterized by small oscillatory movements due to vibrating or cyclic loads between two surfaces in contact. Two phenomena can arise as a consequence: the surface wear of bodies contact, giving rise so-called wear. second phenomenon concerns crack nucleation contact region, causing reduction strength component subjected loading. This c...