Mold Materials For Permanent Molding of Aluminum Alloys
- Case Western Reserve University
A test that involves immersion of the potential mod materials for permanent molds has been developed that provides a thermal cycle that is similar to the experienced during casting of aluminum in permanent molds. This test has been employed to determine the relative thermal fatigue resistance of several different types of mold materials. Four commercial mold coatings have been evaluated for their insulating ability, wear resistance and roughness. The results indicate that composition and structure of the mold materials have considerable effect on their thermal fatigue cracking behavior. Irons with a gray iron structure are the most prone to thermal fatigue cracking followed by compacted graphite irons with the least thermal fatigue cracking of the cast irons experienced by ductile iron. The composition of these various irons affects their behavior.
- Research Organization:
- Case Western Reserve University (US)
- Sponsoring Organization:
- (US)
- DOE Contract Number:
- FC07-99ID13718
- OSTI ID:
- 791424
- Report Number(s):
- DOE/ID/13718
- Country of Publication:
- United States
- Language:
- English
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