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gold 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
... Abstract This article discusses the compositions, properties, and uses of silver, gold, and platinum group metals, including platinum, rhodium, iridium, ruthenium, and osmium. It describes the role of various alloying elements and explains how they affect physical, mechanical, and electrical...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170596
EISBN: 978-1-62708-297-6
... Abstract This article explains how alloying elements affect the properties and behaviors of electrical contacts. It describes the composition, strength, hardness, and conductivity of a wide range of contact alloys and composites based on silver, copper, gold, platinum, palladium, tungsten...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030082
EISBN: 978-1-62708-282-2
...). For example, in the silver-gold system, silver can be almost 100% removed in various acid electrolytes, leaving behind porous gold, as shown in Fig. 1 . This bicontinuous metal-void structure is highly brittle in nature and has been linked to stress-corrosion cracking in many alloy systems ( Ref 1 – 6...
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 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 June 2008
DOI: 10.31399/asm.tb.emea.t52240597
EISBN: 978-1-62708-251-8
... Abstract This chapter discusses the compositions, properties, and applications of nonferrous metals, including zirconium, hafnium, beryllium, lead, tin, gold, silver, and platinum group metals. It also addresses fusible alloys and provides melting temperatures for several compositions...
Series: ASM Technical Books
Publisher: ASM International
Published: 31 December 2020
DOI: 10.31399/asm.tb.phtbp.t59310351
EISBN: 978-1-62708-326-3
... Abstract The term heat treatable alloys is used in reference to alloys that can be hardened by heat treatment, and this chapter briefly describes the major types of heat treatable nonferrous alloys. The discussion provides a general description of annealing cold-worked metals and describes some...
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
.... The more highly beryllium systems contain from 1.6 to 2.0 wt% Be and approximately 0.25 wt% Co. These alloys are frequently called the gold alloys because of the shiny luster imparted by the substantial amount of beryllium present. The gold alloys are the higher-strength beryllium-coppers; they can attain...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420001
EISBN: 978-1-62708-310-2
... • Nash P. , Ed., Phase Diagrams of Binary Nickel Alloys , ASM International , 1991 • Okamoto H. and Massalski T.B. , Ed., Phase Diagrams of Binary Gold Alloys , ASM International , 1987 • Okamoto H. , Ed., Phase Diagrams of Binary Iron Alloys , ASM International...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170457
EISBN: 978-1-62708-297-6
... on the Stress-Corrosion Cracking of Some Copper-base Alloys , Trans. AIME , Vol 185 , 1949 , p 100 10.1007/BF03398082 2. Pugh E.N. , Craig J.V. , and Sedriks A.J. , The Stress-Corrosion Cracking of Copper, Silver, and Gold Alloys , in Proc. Conf. Fundamental Aspects of Stress...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060369
EISBN: 978-1-62708-261-7
... Naval brass Nickel (active) Alloy 600 (active) Yellow and red brasses, aluminum bronze, and silicon bronzes Copper and copper-nickel alloys Silver solder Nickel (passive) Alloy 600 (passive) Alloy 400 Titanium Type 304 and 316 stainless steels (passive) Silver, gold...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 November 2013
DOI: 10.31399/asm.tb.uhcf3.t53630211
EISBN: 978-1-62708-270-9
... in Table 1 for many pure metals and select alloys. Table 1 Galvanic series in seawater at 25 °C (77 °F) Cathodic end (least easily corroded) Platinum Gold Graphite Titanium Silver Chlorimet 3 Hastelloy C Inconel alloy 625 Incoloy alloy 825 Type 316 stainless...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 September 2008
DOI: 10.31399/asm.tb.fahtsc.t51130541
EISBN: 978-1-62708-284-6
...–16 6.1–8.6 Nickel copper 13 7.4 Pure Nickel (Ni) 14 7.5 Palladium alloys 12–14 6.8–7.7 Pure Cobalt (Co) 10–17 5.6–9.6 Cast austenitic stainless steel 13–15 7.0–8.2 Gold alloys 8.1–19 4.5–11 High-nickel gray cast iron 14 7.8 Bismuth tin alloys 7.0–20 3.9–11...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 October 2011
DOI: 10.31399/asm.tb.mnm2.t53060073
EISBN: 978-1-62708-261-7
... of copper; experimentation with smelting Near East 3000–1500 B.C. Bronze Age: arsenical copper and tin bronze alloys Near East 3000–2500 B.C. Lost-wax casting of small objects Near East 2500 B.C. Granulation of gold and silver and their alloys Near East 2400–2200 B.C. Copper statue...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 February 2005
DOI: 10.31399/asm.tb.chffa.t51040007
EISBN: 978-1-62708-300-3
... and alloy steels, stainless steels, heat-resistant alloys, aluminum alloys, copper alloys, silver and gold alloys. Coining without flash, coining with flash, coining in closed die, sizing. Metallic coins; decorative items, such as patterned tableware, medallions and metal buttons; sizing...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030117
EISBN: 978-1-62708-282-2
... alloys. Because of the high cost of gold, very thin electroplated gold coatings are used for contacts. Gold plate thicknesses as small as 0.25 μm (0.01 mil) are used. When electric contacts are subjected to vibrations of continual expansion and contraction from periodic thermal excursions, the small...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 June 2008
DOI: 10.31399/asm.tb.emea.t52240041
EISBN: 978-1-62708-251-8
... solution due to the thermally induced atomic movements. As the alloys are cooled, they rearrange themselves into ordered structures or superlattices. In the gold-copper system, the transformation from short-range to long-range order produces superlattices with three basic compositional ranges. One range...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2001
DOI: 10.31399/asm.tb.secwr.t68350011
EISBN: 978-1-62708-315-7
... without protective coatings. Corrosion of structural grades of cast iron and steel, the 400 series stainless steels, and some aluminum alloys, however, proceeds rapidly unless the metal is protected against corrosion. As described in Chapter 1 , corrosion of metals is of particular concern because annual...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420289
EISBN: 978-1-62708-310-2
... Abstract This chapter discusses the use of phase diagrams in alloy design, processing, and performance assessment. The examples cover both ferrous and nonferrous metals and a variety of goals and objectives. The chapter also identifies limitations and pitfalls associated with the use of phase...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 March 2012
DOI: 10.31399/asm.tb.pdub.t53420171
EISBN: 978-1-62708-310-2
... of short-range order is 0 (σ = 0), a disordered alloy is present, and when σ = 1, the alloy is completely ordered. At elevated temperatures, the CuAu alloy is a disordered solution with a fcc lattice, where copper and gold atoms are randomly located at the face and corner sites ( Fig. 9.6a ). When...
Series: ASM Technical Books
Publisher: ASM International
Published: 30 April 2021
DOI: 10.31399/asm.tb.tpsfwea.t59300227
EISBN: 978-1-62708-323-2
... in hardfacings ( Table 9.4 ) is cost effective, and if hardfacings can be used in an application, these alloys may be considered. Stellites and related cobalt-base alloys are the gold standard for many tribological applications. They can have better cavitation erosion resistance than stainless steels...