Dry sliding wear behaviour of hypereutectic Al-Si piston alloys containing iron-rich intermetallics

作者：Abouei V; Shabestari S G^*; Saghafian H

来源：Materials Characterization, 2010, 61(11): 1089-1096.

DOI：10.1016/j.matchar.2010.07.001

• Al-Si alloy
• Iron rich compounds
• Intermetallic modification
• Wear behaviour

The effect of iron rich intermetallics on the wear behaviour of Al-Si hypereutectic alloys has been studied Dry sliding wear tests have been conducted using a pin on disk machine under different normal loads of 18 51 74 and 100 N and at a constant sliding speed of 0 3 m/s The addition of 1 2 wt % Fe to the LM28 alloy increased the wear rate due to the formation of needle beta intermetallics Introducing 0 6 wt % Mn to the iron rich alloy changed the beta intermetallics into the modified alpha phases and therefore reduced the detrimental effect of iron TIG welding

• 出版日期2010-11