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magnesium alloy systems

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Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001123
EISBN: 978-1-62708-214-3
..., and magnesium was different from the specified alloy. Scanning electron microscopy showed intergranular failure with enhanced aluminum and segregation of lead at grain boundaries. In this type of alloy, aluminum is used for strengthening through grain refinement, because aluminum would tend to segregate...
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
... 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 for mechanical systems such as landing gear and gear box components Agriculture: Welded carbon or low-alloy steel...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006787
EISBN: 978-1-62708-295-2
... Abstract High-temperature corrosion can occur in numerous environments and is affected by various parameters such as temperature, alloy and protective coating compositions, stress, time, and gas composition. This article discusses the primary mechanisms of high-temperature corrosion, namely...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001769
EISBN: 978-1-62708-241-9
... and induces corrosion of surface materials. The mixed fouling consisting of microbes and calcium or magnesium salts is, in particular, the major part of the fouling in real water systems [ 11 ]. The primary role of bacteria in the precipitation process was ascribed to their ability to create an alkaline...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001366
EISBN: 978-1-62708-215-0
.... 10 ), EDX analyses identified the phases as being composed predominantly of magnesium and silicon (presumably Mg 2 Si) and iron and aluminum (Fe 3 A1). The structure otherwise appeared typical of properly solutioned and precipitation-hardened AMS 4126 aluminum-base alloy. Binocular and scanning...
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
.... SCE, saturated calomel electrode. Adapted from Ref 2 Although the measurement of potentials has limitations as previously noted, galvanic series based on seawater or other standard electrolytes are worthwhile for initial materials selection for multiple metal/alloy systems in a given...
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
... the measurement of potentials has limitations as previously noted, galvanic series based on seawater or other standard electrolytes are worthwhile for initial materials selection for multiple metal/alloy systems in a given environment. A properly prepared galvanic series is easy to use and can answer simple...
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
... stainless steels (sensitization) Embrittlement of molybdenum by oxygen, nitrogen, or carbon Embrittlement of copper by antimony Segregation of alloying elements, lithium and magnesium in aluminum-lithium alloys ( Ref 10 ) Embrittlement of copper alloys by bismuth (fire-cracking) ( Ref 11...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001331
EISBN: 978-1-62708-215-0
... of pipe was during startup or shutdown procedures. A sealer compound (composition unknown) was periodically pumped into the steam to seal leaky valve stems in the system. P22 low-alloy steel was specified for this application. Metallographic samples were cut from the fracture area and from an area...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047080
EISBN: 978-1-62708-235-8
... Abstract Several of the aluminum alloy 6061-T6 drawn seamless tubes (ASTM B 234, 2.5 cm (1.0 in.) OD with wall thickness of 1.7 mm (0.065 in.)) connecting an array of headers to a system of water-cooling pipes failed. The tubes were supplied in the O temper. They were bent to the desired...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.aero.c9001504
EISBN: 978-1-62708-217-4
.... These failures occurred after only a few years in service for some and much longer for others. Some of these wheels were made from magnesium alloys; all the others were forged from 2014 aluminium alloy, heat treated to the T6 temper, anodized in sulphuric acid, and painted. Fig. 7 a: Catastrophic wheel...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003540
EISBN: 978-1-62708-180-1
... be noted that overheating may occur during the solution anneal of age hardening alloy systems. In this case, grain boundary porosity by melting of the eutectic constituent occurs and can result in significantly reduced ductility and toughness. The presence of certain tramp elements at the grain...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001177
EISBN: 978-1-62708-234-1
...Abstract Abstract A solution containing 50 to 70% calcium chloride (pH 7.5 to 8.5) was concentrated by evaporation in a brick-lined vessel by passing steam at a pressure of 15 atmospheres through a system of heating coils made of austenitic stainless steel X 10 Cr-Ni-Mo-Ti 18 12 (Material...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001391
EISBN: 978-1-62708-215-0
.... Note the puckered appearance of the gold polymer coating at the left termination. This was caused by the heat of soldering exceeding the T g of the epoxy. 21.6× Fig. 4 SEM micrograph of a resistor with a partially delaminated termination. The light-appeahng portion is the lead-tin alloy...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003549
EISBN: 978-1-62708-180-1
... ways without the use of additives. Ozone treatment is one method used in municipal water systems to treat for MIC. Stirring a tank of fluid may be all that is required to avoid pitting corrosion. Alloy changes are often employed to combat corrosion problems, particularly when the replacement...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001362
EISBN: 978-1-62708-215-0
... cracking. Fig. 1 The rotor disc segment is shown as received for analysis Abstract Abstract Numerous cracks observed on the surface of a forged A470 Class 4 alloy steel steam turbine rotor disc from an air compressor in a nitric acid plant were found to be the result of caustic induced...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001339
EISBN: 978-1-62708-215-0
...× Abstract Abstract The failure mode of through-wall cracking of a butt weld in a 5083-O aluminum alloy piping system in an ethylene plant was identified as mercury liquid metal embrittlement. As a result of this finding, 226 of the more than 400 butt welds in the system were ultrasonically inspected...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.power.c9001602
EISBN: 978-1-62708-229-7
..., the alloy microstructure and grain morphology play the principal roles in failure initiation and propagation. This is especially true when there is a variation in the microstructure of the bucket material because microstructural variations cause mechanical properties in the bucket alloy to vary...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001808
EISBN: 978-1-62708-241-9
... steel and copper alloys, in contact with a variety of liquids, chemistries, and substances. Analytical techniques employed include stereoscopic examination, energy dispersive x-ray spectroscopy (EDS), temperature and pH testing, and metallographic analysis. The findings indicate that MIC is frequently...