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cast brass

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Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001222
EISBN: 978-1-62708-225-9
... Abstract A full lift disk, made of die cast brass, which served as a lifting aid in a safety valve, had cracked in service at a number of locations in the vicinity of the threaded hole. During microscopic examination, agglomeration of oxide inclusions were noted in the region of the cracks...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001684
EISBN: 978-1-62708-225-9
... Abstract The steam tug Hercules was an ocean-going and bay tug for 55 years before being retired. It is now being restored by the National Park Service. A broken steam valve was obtained for microstructural examination. The body was gray cast iron, and the stem and seat were brass...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0046737
EISBN: 978-1-62708-229-7
... of the failures. A total of 35 samples of cracked hardware (21 castings and 14 bolts and nuts) from different zones of the cooling tower were removed for examination. The castings were made of copper alloys C86200 and C86300 (manganese bronze). The bolts and nuts were made of copper alloy C46400 (naval brass...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001831
EISBN: 978-1-62708-241-9
... with the results of the chemical compositional analysis. Besides, the cage consisted of both acicular α phase (white) and β phase (black), Fig. 3c , showing the typical microstructure of casting brass alloy. Chemical compositions of the matrix materials of the outer ring and the roller of this failed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006760
EISBN: 978-1-62708-295-2
...-stress opening crack in silver-plated brass teapot. (b) Evidence of residual stress in stainless steel anchor ring Failures can be caused by a single factor but often are caused by a combination of factors. For example, stress-corrosion cracking requires stress AND a corrosive agent...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.rail.c9001719
EISBN: 978-1-62708-231-0
... be heated to a temperature above the melting point of brass and in a stressed condition. An experiment was conducted using a 1.27-cm ( 1 2 -inch) round rotating medium carbon steel, loaded as a cantilever beam. The beam ran for many hours without failure at 925 °C and 1750 RPM. The steel...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006831
EISBN: 978-1-62708-329-4
... Abstract The information provided in this article is intended for those individuals who want to determine why a casting component failed to perform its intended purpose. It is also intended to provide insights for potential casting applications so that the likelihood of failure to perform...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006835
EISBN: 978-1-62708-329-4
... of wrought products. The article addresses the types of flaws or defects that can be introduced during the steel forging process itself, including defects originating in the ingot-casting process. Defects found in nonferrous forgings—titanium, aluminum, and copper and copper alloys—also are covered...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0048158
EISBN: 978-1-62708-229-7
..., the turbine was opened for inspection, and several of the springs were found to be broken. Operation of the turbine was not impaired by the broken springs. The springs were made of 1.1-mm (0.045-in.) diam Inconel X-750 wire. The interstage packing rings were machined from centrifugally cast leaded nickel...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001772
EISBN: 978-1-62708-241-9
... half section Abstract A cast silicon bronze (UNS C86700) impeller that had been severely corroded was submitted for failure analysis. The failed part was used to pump potable water, but service life and chlorine content of the water were unknown. The impeller displayed a Cu-rich red phase...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006785
EISBN: 978-1-62708-295-2
... as one of the first comprehensive studies into the cause of season cracking, Moore, Beckinsale, and Mallinson concluded in their 1921 paper, “The Season Cracking of Brass and Other Copper Alloys,” that “some agency additional to the presence of initial (residual) stress appears to be necessary...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006783
EISBN: 978-1-62708-295-2
... to the other members in the galvanic assembly (for example, zinc anodes in cast iron waterboxes of copper alloy water-cooled heat exchangers). Cathodic protection is often used for the protection of underground or underwater steel structures. The use of cathodic protection for long-term corrosion...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001822
EISBN: 978-1-62708-180-1
... reported that when an axle that is necked down and elongated is inspected, the brass is usually broken, and most of the journal brass is usually intact in the box. In 1951 and in 1953, the Delaware, Lackawana & Western Railroad reported a revealing test ( Ref 7 , 8 ). A non-copper-containing (cast...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003548
EISBN: 978-1-62708-180-1
..., such as magnesium or zinc, may be introduced into the galvanic assembly. The most active member will corrode while providing cathodic protection to the other members in the galvanic assembly (for example, zinc anodes in cast iron waterboxes of copper alloy water-cooled heat exchangers). Cathodic protection...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003553
EISBN: 978-1-62708-180-1
... alloys, iron-chromium alloys, and brasses, either type of cracking can occur, depending on the metal-environment combination. Features of stress-corrosion cracked surfaces revealed by macroscopic and microscopic examination are discussed in the sections “Macroscopic Examination” and “Microscopic...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.mech.c9001530
EISBN: 978-1-62708-225-9
... one failed catastrophically within a few days, generating a huge amount of metallic wear debris and causing pitting on the surface of the cast iron roller. Following the failure, samples were collected from both good and failed bearings. The samples were analyzed chemically and their microstructures...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.9781627083294
EISBN: 978-1-62708-329-4
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006777
EISBN: 978-1-62708-295-2
... Hydrogen embrittlement by grain-boundary absorption of hydrogen Stress-corrosion cracking, can be intergranular or transgranular Liquid metal induced embrittlement, for example, mercury in brass, lithium in 304 stainless steel Solid metal induced embrittlement Low-melting-temperature elements...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0001814
EISBN: 978-1-62708-180-1
... the as-cast surface region and associated as-quenched martensitic layer. Cavity surfaces must be stoned or ground, then tempered to prevent such failures. A classic example of a failure due to improper EDM technique is shown in Fig. 7 and 8 . Figure 7 shows four 3.2-mm ( 1 8 -in.) diam EDM...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006818
EISBN: 978-1-62708-329-4
... observed due to failure to remove the as-cast surface region and associated as-quenched martensitic layer. Cavity surfaces must be stoned or ground, then tempered to prevent such failures. A classic example of a failure due to improper EDM technique is shown in Fig. 7 and 8 . Figure 7 shows four...