Metallurgical evaluation of a copper-based alloy for dental castings.
Contribuinte(s) |
Universidade Estadual Paulista (UNESP) |
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Data(s) |
27/05/2014
27/05/2014
01/08/1991
|
Resumo |
The present study was designed to evaluate the metallurgical properties of an experimental, low-cost copper-zinc-aluminum-nickel alloy for dental castings. Some specimens were subjected to heat treatment after induction casting. The extent of corrosion was determined by measuring weight loss of specimens stored in a sodium sulfite solution. In the as-cast specimens, tests demonstrated the presence of three phases: the first consisted of copper-zinc-aluminum, the second was similar but lower in copper and aluminum, and the third consisted of an intermetallic compound of manganese-nickel-phosphorus. After heat treatment, the first phase remained relatively constant, the second was converted to Cu3Al, and the third increased in volume. The weight loss from the as-cast specimens was eight times that of the heat-treated specimens. It was concluded that the heat treatment substantially changed the microstructure and improved the corrosion resistance of the experimental alloy. |
Formato |
647-652 |
Identificador |
http://www.quintpub.com/journals/qi/abstract.php?iss2_id=949&article_id=10905 Quintessence international, v. 22, n. 8, p. 647-652, 1991. 0033-6572 http://hdl.handle.net/11449/64135 2-s2.0-0026209282 |
Idioma(s) |
eng |
Relação |
Quintessence International |
Direitos |
closedAccess |
Palavras-Chave | #copper #dental alloy #chemistry #corrosion #denture #heat #materials testing #metallurgy #Copper #Corrosion #Dental Alloys #Dental Casting Technique #Heat #Materials Testing #Metallurgy #Support, Non-U.S. Gov't |
Tipo |
info:eu-repo/semantics/article |