ISSN:
1573-4803
Source:
Springer Online Journal Archives 1860-2000
Topics:
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
Notes:
Abstract The quality of thin foil components made from NiCr-based alloys can be reduced by three-dimensional defects formed during alloy preparation and roMng cycles of foil manufacturing. In particular, the appearance of microscopic holes, i.e. defects transparent to light, air or other matter, can completely prevent special applications. Thus for the optimization of foil manufacturing procedure microanalytical investigations were needed to support the decision for either a model of solely vacancy coalescence or a combined model of vacancy coalescence in the presence of second-phase inclusions and direct interaction of inclusion and roll surface. The identification of corundum particles as a major inclusion of almost all investigated transparent defects confirms that thodefects are formed due to both different mechanical behaviour (ofα-Al2O3 inclusions and NiCr-alloy) and vacancy coalescence at the appropriate phase boundary during rolling deformation.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF01160588
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