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aluminum alloy powders

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Published: 30 August 2021
Fig. 16 Materials property space for room-temperature yield strength versus elongation of additively manufactured (AM) alloys and conventionally manufactured alloys (dashed lines). (a) Steels, nickel alloys, aluminum alloys, TiAl, and CoCrMo. (b) Ti-6Al-4V alloys (powder-bed fusion, or PBF). SLM More
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001548
EISBN: 978-1-62708-219-8
... product to have the same crystal structure as for aluminum. The white powder was essentially finely divided aluminum and came from the aluminum panel. X-ray fluorescence of the white powder using an electron beam microprobe showed the same elements to be present in the powder as in the aluminum alloy...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001753
EISBN: 978-1-62708-241-9
... alumina powder and diamond paste polishing, and finally on completion of polishing. Keller’s reagent, commonly used in etching aluminum alloys, was used for this sample and applied to the surface for approximately 15 s with a cotton swab. The primary fracture surfaces were cleaned in ethanol for 5 min...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006838
EISBN: 978-1-62708-329-4
... additive manufacturing processes by powder-bed fusion, wire-feed electron beam, and directed-energy (laser) deposition processes. Source: Ref 5 Metallic feedstock for fusion-based AM is typically of weldable, powder metallurgy, and castable alloys that include aluminum alloys, cobalt-chromium...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001387
EISBN: 978-1-62708-215-0
... of black powder was also present on the bottom or the cell. SEM/EDX studies of the outer and inner surfaces of the gouged anode showed the presence of iron globules at the interface between the gouged and the unattacked anode. The chemical composition of the black powder was determined to be primarily iron...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001364
EISBN: 978-1-62708-215-0
... in the failed compressor Impellers Mechanical properties Melting Reactions (chemical) Rubbing Aluminum-silicon alloy (Other, miscellaneous, or unspecified) failure Background Applications A centrifugal refrigeration system depends upon centrifugal force to compress the refrigerant vapors...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001252
EISBN: 978-1-62708-235-8
..., furnished with 42 kg of 75% ferrosilicon and 12 kg aluminum additions, alloyed with 160 kg of 80% ferromanganese, and finally deoxidized in the ladle with 42 kg calcium silicon. For metallographic examination a plate approximately 100 mm thick was cut parallel to one of the eight planes. Platelet-like...
Series: ASM Handbook
Volume: 11A
Publisher: ASM International
Published: 30 August 2021
DOI: 10.31399/asm.hb.v11A.a0006826
EISBN: 978-1-62708-329-4
... raisers and lead to tool steel product failure after final heat treatment or in service. Annealing the workpiece to a microstructure of fine carbide spheroids and lamellar pearlite will improve the machinability ( Ref 16 ). Dwelling cutting tools too long during profiling or pocketing aluminum alloy...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c0091703
EISBN: 978-1-62708-229-7
... identified using powder x-ray diffraction (XRD) techniques. The internal deposits consisted of silicon oxide (SiO 2 ), potassium aluminum silicate (KAlSiO 4 ), calcium carbonate (CaCO 3 ), and ammonium copper sulfite hydrate [(NH 4 ) 7 Cu(SO 2 ) 4 · 5H 2 O]. In addition to the elements contained...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006759
EISBN: 978-1-62708-295-2
... with some type of mechanical testing to determine adequate heat treatment of a part. For carbon and alloy steels, bulk chemical analysis is often used in conjunction with a bulk hardness test to determine the tensile strength of the material ( Ref 1 ). For aluminum alloys, bulk chemistry in conjunction...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003555
EISBN: 978-1-62708-180-1
..., with a penetration of 0.2 to 0.8 mm (0.008 to 0.031 in.) in 50 to 55 days, in nickel alloys at 650 to 700 °C (1200 to 1300 °F). Nickel-chromium alloys containing titanium, niobium, and aluminum are better than basic nickel-chromium alloys in carbon dioxide atmospheres at 700 to 800 °C (1300 to 1470 °F). The alumina...
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
... analysis, metallographic analysis, and simulated-service tests. It provides case studies for the analysis of SCC service failures and their occurrence in steels, stainless steels, and commercial alloys of aluminum, copper, magnesium, and titanium. aluminum alloys austenitic stainless steel carbon...
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
... and industries that have experienced SCC failures include (this list is not exhaustive): Aerospace: Aluminum alloys in structural aircraft components such as landing gear and wing components, stainless steel tubing used as part of the hydraulic or fuel systems, high-strength low-alloy steel...
Book Chapter

Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003562
EISBN: 978-1-62708-180-1
... that rely on low-temperature heat treatment for their optimum mechanical properties (for example, most aluminum alloys) are likely to suffer a further type of damage in fretting. Fig. 21 Cross-sectional view of a white layer of martensite produced by fretting of a carbon steel connecting rod. Axial...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001674
EISBN: 978-1-62708-234-1
... that the preferential attack of the gold was due to HCN formed by decomposition of the explosive powder at high temperatures. Other associated reactions were also observed including the subsequent attack of the solder by the gold corrosion product and degradation of the plastic header. Bridgewires Detonators...
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
... to perform the intended function is decreased. The article addresses factors that may cause failures in castings for each metal type, starting with gray iron and progressing to ductile iron, steel, aluminum, and copper-base alloys. It describes the general root causes of failure attributed to the casting...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001313
EISBN: 978-1-62708-215-0
... of the tube and XRD analysis of crystalline compounds in the deposit indicated the possible presence of ammonia. Failure was attributed to stress-corrosion cracking resulting from ammonia in the cooling water. It was recommended that an alternate tube material, such as a 70Cu-30Ni alloy or a titanium alloy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003552
EISBN: 978-1-62708-180-1
.... The article focuses on the types of hydrogen embrittlement that occur in all the major commercial metal and alloy systems, including stainless steels, nickel-base alloys, aluminum and aluminum alloys, titanium and titanium alloys, copper and copper alloys, and transition and refractory metals. The specific...
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
... aluminum oxide powder. Samples were viewed with an optical microscope in the unetched condition first. These samples exhibited low inclusion content, and the secondary cracks were sharp with signs of branching as shown in Figures 7 , 8 . Fig. 7 Photomicrograph of secondary crack from failed...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006784
EISBN: 978-1-62708-295-2
... nickel alloys display severe degradation of tensile properties in hydrogen gas. Austenitic stainless steels, aluminum alloys, and alloy A286 show very little embrittlement in this environment; most other engineering metals and alloys are affected to a lesser degree. Seamless steel vessels have been used...