Study on wear of casting aluminium alloys

摘要: Recently the demand for aluminium alloys with a view to lightening weight of various machine parts has been increasing in field automobile and other industries. However, there are few data obtainable conerning wear characteristics alloys. So how some typical casting alloys, e.g., Lautal, Low-Ex., Y-alloy hyper-eutectic Aluminium-Silicon alloy out against same carbon steel respectively, is examined under unlubricated condition. The results summerized as follows.1. In discussing resistance materials, it be noted that varies combination materials pitted such other.2. case kind sometimes firmer than at relatively low speed sliding, but sliding increased, Low-Ex. may generate partial welding phenomenon (scuffing) on frictional surface. This particularly remarkable Lautal because melting point low. interest so far this experiment goes scuffing does not occur alloy, loss smaller those alloys.3. very small irrespective contact pressure. experiment, combinations reveal mild surface roughness little.