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platinum jewelry alloys

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170550
EISBN: 978-1-62708-297-6
... life. Gold, silver, and platinum are used extensively in making jewelry; gold, silver, and other alloys are used in restorative dentistry; and sterling silver is used for making tableware. Less obvious, but equally pervasive, are the use of platinum-group metals as catalysts in automotive pollution...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240597
EISBN: 978-1-62708-251-8
... materials, jewelry, and brazing alloys. It can be electroplated, electroformed, and deposited by electroless methods. Rhodium, iridium, ruthenium, and osmium, the remaining platinum-group metals, are all hard white metals that have little ductility at room temperature. They are used primarily...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060315
EISBN: 978-1-62708-261-7
..., and higher purity is commercially available. Resistance to oxidation is its outstanding property; its color, yellow, is maintained in air or when heated. Gold is usually alloyed to increase its hardness, because chemically pure gold is simply too soft for use in common applications such as jewelry...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060073
EISBN: 978-1-62708-261-7
... that typically call for small quantities of material. Pen points, electrical connectors, dentistry, and pivot points in fine balances are examples of uses of precious metals. Platinum-iridium alloys are very resistant to food acids and are useful in dental restorations. Aluminum, the third most abundant...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170003
EISBN: 978-1-62708-297-6
... a nonconductor between the metal parts, and/or plating one of the contact surfaces with a more compatible metal) rather than by alloying. Gold is very soft and easily deformed in its pure (unalloyed) form. Therefore, when used in electrical contacts, coins, jewelry, dentistry, and other commercial...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
...Examples of nonferrous metals and alloys with athermal (quench-induced) or stress-induced martensite Table 2 Examples of nonferrous metals and alloys with athermal (quench-induced) or stress-induced martensite Metal or alloy system Composition range for transformation, wt% Change...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350011
EISBN: 978-1-62708-315-7
... (passive) Incoloy alloy 825 Inconel alloy 625 Hastelloy alloy C Chlorimet 3 Silver Titanium Graphite Gold Platinum Protected end (cathodic, or most noble) The three-layer iron oxide scale formed on steel during rolling varies with the operation performed...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060333
EISBN: 978-1-62708-261-7
...Abstract Abstract Nonferrous alloys are heat treated for a variety of reasons. Heat treating can reduce internal stresses, redistribute alloying elements, promote grain formation and growth, produce new phases, and alter surface chemistry. This chapter describes heat treatment processes and how...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 January 2015
DOI: 10.31399/asm.tb.tpmpa.t54480353
EISBN: 978-1-62708-318-8
... ions, and/or other dissolved oxidizing compounds. The range of applications for titanium can be expanded by alloying with certain noble elements (particularly in the platinum group metals) or by improved anodic potentials (anodic protection). In addition, titanium generally exhibits superior...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... (Cu-Sn alloy). A few civilizations, such as the Egyptians (1500 bce ), even made objects such as jewelry and vessels from pure tin. Homer mentioned tin in the Iliad , and the Romans installed tin-smelting equipment in the UK during their halcyon years. Tin has a low melting point (−246 °C, −410 °F...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240469
EISBN: 978-1-62708-251-8
... resistance to oxidation at elevated temperatures; good corrosion resistance at ordinary temperatures; good wearing properties; and a pleasing color that makes some of these alloys useful for decorative purposes, for example, as a substitute for gold in imitation jewelry. Fig. 25.12 Effect of aluminum...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350125
EISBN: 978-1-62708-315-7
... arc (GMAW) 2 3–6 10–30 Faster than SMAW, no stub-end loss; positional work possible Flux-cored arc (FCAW) 2 3–6 15–30 Similar to GMAW. Mainly for iron-base alloys for high abrasion resistance Submerged arc (SAW)  Wire 3 10–30 15–30 Heavy section work; higher-quality deposits than...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 1988
DOI: 10.31399/asm.tb.eihdca.t65220085
EISBN: 978-1-62708-341-6
...Chemical compositions and melting ranges of alloys commonly used in induction soldering. Table 6.12 Chemical compositions and melting ranges of alloys commonly used in induction soldering. From J. Libsch and P. Capolongo, Lepel Review. Vol 1, No. 5, p 1 ( Ref 20 ) Alloy...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.9781627082617
EISBN: 978-1-62708-261-7
Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 1999
DOI: 10.31399/asm.tb.caaa.t67870191
EISBN: 978-1-62708-299-0
...Abstract Abstract This chapter discusses corrosion prevention methods used with aluminum and its alloys. The methods range from relatively straightforward measures, such as proper handling and storage, to advanced early warning corrosion monitoring systems for military aircraft. The chapter...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.9781627083232
EISBN: 978-1-62708-323-2
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2006
DOI: 10.31399/asm.tb.ex2.t69980195
EISBN: 978-1-62708-342-3
... enable a wide spectrum of materials to be extruded. This chapter focuses on the processes involved in the extrusion of semifinished products in various metals and their alloys, namely tin, lead, lead-base soft solders, tin-base soft solders, zinc, magnesium, aluminum, copper, titanium, zirconium, iron...