Title: Electron microscopic studies of hardening in type III dental alloy
Abstract: Previous studies on the hardening mechanism of the type III dental alloy have involved the use of X-ray, optical metallography and hardness measurement techniques. Despite the thoroughness of previous investigations, the mechanism of hardening is obscure. It is not known whether precipitation or ordering or both are responsible for hardening. This investigation was initiated to study the hardening behavior in greater detail using transmission electron microscopy. Samples of this alloy solution-treated at 700 °C and aged for various times of up to 126 hours at 350 °C were used. Electron microscopic observations reveal that hardening is primarily due to the precipitation phenomenon. Ordering also plays a role in hardening but its contribution seems to be very small. The precipitates are coherent, platelet type and form on (100) and (111) planes of the matrix.
Publication Year: 1976
Publication Date: 1976-08-01
Language: en
Type: article
Indexed In: ['crossref']
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Cited By Count: 25
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