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ASTM B867-95
Standard Specification for Electrodeposited Coatings of Palladium-Nickel for Engineering Use
Automatische name übersetzung:
Standard-Spezifikation für Galvanische Überzüge von Palladium-Nickel für Engineering Benutzung
NORM herausgegeben am 1.1.1995
Informationen über die Norm:
Bezeichnung normen: ASTM B867-95
Anmerkung: UNGÜLTIG
Ausgabedatum normen: 1.1.1995
SKU: NS-8540
Zahl der Seiten: 9
Gewicht ca.: 27 g (0.06 Pfund)
Land: Amerikanische technische Norm
Kategorie: Technische Normen ASTM
Die Annotation des Normtextes ASTM B867-95 :
Keywords:
Composite coatings, Engineering applications-electrodeposited coatings, Palladium-nickel electrodeposited coatings, palladium-nickel electrodeposited coatings
Ergänzende Informationen
| 1. Scope | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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1.1 Composition -This specification covers requirements for electrodeposited palladium-nickel coatings containing between 70 and 95 mass % of palladium metal. Composite coatings consisting of palladium-nickel and a thin gold overplate for applications involving electrical contacts are also covered. 1.2 Properties -Palladium is the lightest and least noble of the platinum group metals. Palladium-nickel is a solid solution alloy of palladium and nickel. Electroplated palladium-nickel alloys have a density between 10 and 11.5, which is substantially less than electroplated gold (17.0 to 19.3) and comparable to electroplated pure palladium (10.5 to 11.8). This yields a greater volume or thickness of coating per unit mass and, consequently, some saving of metal weight. The hardness range of electrodeposited palladium-nickel compares favorably with electroplated noble metals and their alloys (1, 2). Note 1-Electroplated deposits generally have a lower density than their wrought metal counterparts. Approximate Hardness (HK 25 ) Gold 50-250 Palladium 75-600 Platinum 150-550 Palladium-Nickel 300-650 Rhodium 750-1100 Ruthenium 600-13001.3 The values stated in SI units are to be regarded as the standard. The values given in parentheses are for information only. 1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use. |
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| 2. Referenced Documents | ||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
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