Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
1578669 | Materials Science and Engineering: A | 2011 | 6 Pages |
In Al alloy castings, it is often not microstructure, but entrained defects in the form of bifilms that dominate mechanical properties. To assess their effect, this study targets a new quantification of metal quality, measuring the lengths and number of bifilm defects as determined from the microstructural section of a reduced pressure test (RPT) sample.
Research highlights► The presence of bifilms in aluminium can be quantified by reduced pressure test. ► Bifilm index can discriminatingly assess aluminium melt quality. ► Number of bifilms is directly related with the number of the pores. ► Metal quality can be quantified by using both bifilm index and number of pores. ► It is predicted that very high ductility will be achieved in the absence of bifilms.