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Series: ASM Handbook
Volume: 7
Publisher: ASM International
Published: 30 September 2015
DOI: 10.31399/asm.hb.v07.a0006106
EISBN: 978-1-62708-175-7
... Abstract Bronze and brass alloys are two key classes of materials in copper-base powder metallurgy applications. They are often compacted using mechanical or hydraulic pressing machines. This article provides an overview of the powder pressing process, providing information on the powder...
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Published: 01 January 2006
Fig. 5 Two bronze pieces exhibiting corrosion. (a) A finial, approximately 1300 to 1050 B.C.E. from the Shang dynasty (approximately 1600 to 1050 B.C.E.), China. (b) A closeup of the handle of a ritual food vessel (ding) with cover, approximately 550 to 400 B.C.E. Eastern Zhou dynasty (771 More
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Published: 01 January 2006
Fig. 1 Bird damage to a 1931 bronze statue located in Kingston, Ontario, that commemorates the 21st Battalion battles in World War I. Courtesy of Pierre Roberge, Royal Military College of Canada. Photograph 2002 More
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Published: 01 January 2006
Fig. 5 Detail of severe pitting on a child's face in the 1887 bronze statue Stone Age in America by John J. Boyle located in Philadelphia. Courtesy of the Fairmount Park Art Association. Photograph by Franko Khoury © 1983 More
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Published: 01 January 2006
Fig. 7 Detail of the bronze sculpture of The Thinker by Auguste Rodin (installed outside the Rodin Museum in Philadelphia in 1929) (a) before treatment and (b) after treatment. Courtesy of the Philadelphia Museum of Art, Conservation Department. Photographs 1992 More
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Published: 01 January 2006
Fig. 6 Schematic diagram of bronze disease on archaeological copper alloys. Adapted from Ref 114 More
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Published: 01 January 2005
Fig. 5 Typical hanger pin assembly with bronze washer More
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Published: 01 January 2005
Fig. 4 Cast aluminum bronze (Cu-10Al-5Mo-5Fe), annealed and furnace cooled. Alpha needles in a pearlitic matrix of kappa and alpha. The small points are rosettes and rods of kappa, a quarterly phase of CuAlNiFe. Acid etched in ferric chloride. Original magnification 400×. Courtesy of Frauke More
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Published: 01 January 2002
Fig. 6 Overload failure of a bronze worm gear ( example 4 ). (a) An opened crack is shown with a repair weld, a remaining casting flaw, and cracking in the base metal. (b) Electron image of decohesive rupture in the fine-grain weld metal. Scanning electron micrograph. 119×. (c) Morphology More
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Published: 01 January 2002
Fig. 43 Dealuminification of a cast aluminum bronze furnace electrode pressure ring exposed to recirculating cooling water (pH = 7.8 to 8.3, conductivity = 1000 to 1100 μS). The preferentially attacked γ phase left behind a residue of copper (darkened regions in eutectoid and along grain More
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Published: 01 January 2002
Fig. 9 Silicon bronze contact-finger retainer that failed from SCC in shipboard service. (a) Overall view of retainer showing cracking in corner (arrow). (b) Specimen taken from failure region showing secondary cracks (arrows). Etched with equal parts NH 4 OH and H 2 O 2 . 250× More
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Published: 01 January 2002
Fig. 2 Mercury-induced embrittlement of bronze rupture discs. (a) Premature, atypical rupture of a rupture disc. (b) SEM fractograph of a failed rupture disc, showing intergranular crack propagation. 554×. Source: Ref 11 More
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Published: 01 January 1989
Fig. 4 Effect of tin content on the machinability of leaded commercial bronze (machinability scale nonstandard) More
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Published: 01 December 2008
Fig. 36 Naval Research Laboratories-type riser size curve for manganese bronze (alloy C86500). Source: Ref 33 More
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Published: 01 December 2008
Fig. 37 Naval Research Laboratories-type riser curve for manganese bronze (alloy C86500) using different types of exothermic hot topping and top risers. Source: Ref 34 More
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Published: 01 December 2008
Fig. 38 Naval Research Laboratories-type riser curve for aluminum bronze (alloy C95300) using different types of exothermic hot topping and top risers. Source: Ref 34 More
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Published: 01 December 2008
Fig. 18 Stress-corrosion cracking in a bronze alloy C83600 suction roll shell. Original magnification: 1000×. Courtesy of Stork Technimet, Inc. New Berlin, WI More
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Published: 01 December 2008
Fig. 7 Fine jagged cracks are present at the drilled holes in the bronze shell. More
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Published: 01 December 2008
Fig. 10 Cross section through the bronze alloy near a drilled hole shows jagged cracks filled with corrosion product, typical for stress-corrosion cracking. More
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Published: 01 December 2008
Fig. 14 Bronze casting with sponge porosity that was not removed by HIP. The immediate proximity of the pores to the as-cast surface indicates that this is an interconnected network of porosity that broke through to the surface of the casting. As a result, high-pressure argon was able More