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silver alloys

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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.c9001023
EISBN: 978-1-62708-214-3
... and of the bevel gear had failed completely from severe fretting wear. The splines of the shaft had been plated with a silver alloy to provide fretting wear resistance. The bevel gear is normally held to the shaft by a special castellated nut, support ring, and a nut locking mechanism (which was not available...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001389
EISBN: 978-1-62708-215-0
...Abstract Abstract During routine quality control testing, small circuit breakers exhibited high contact resistance and, in some cases, insulation of the contacts by a surface film. The contacts were made of silver-refractory (tungsten or molybdenum) alloys. Infrared analysis revealed the film...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c9001439
EISBN: 978-1-62708-235-8
... intermetallic compound, nickel phosphide. The use of a brazing alloy containing phosphorus was unsuitable on two counts and a quaternary alloy containing silver, copper, cadmium and zinc, such as those in group AG1 or AG2 of BS 1845 would be more suitable. However, because corrosive problems experienced...
Series: ASM Failure Analysis Case Histories
Volume: 1
Publisher: ASM International
Published: 01 December 1992
DOI: 10.31399/asm.fach.v01.c9001031
EISBN: 978-1-62708-214-3
... is pumped ( Fig. 1 ). Fig. 1 Schematic of the main combustion chamber in the space shuttle main engine. (a) Profile of the MCC and the location of pinholes. (b) Cross section showing the location of the cooling channels. NARloy-Z is a copper-base alloy containing 3% Ag and 0.5% Zr. Silver acts...
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
... with a nickel barrier layer (electroplated) and finished with electroplated tin deposit for solderability ( Fig. 1 ). Termination/carrier strip attachment was reportedly performed in a belt furnace. The carrier strip was stamped from coin silver strip. Solder paste (Pb-8Sn-2Ag) and type RMA flux were used...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001755
EISBN: 978-1-62708-241-9
... fatigue fracture misalignment tungsten alloy steel fatigue cracking optical microscopy hardness T1 tungsten high-speed steel UNS T12001 Copper-based bearing alloys Background The ball bearing assembly consisted of an inner race, an outer race, a cage, and balls. This bearing supported...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.process.c0047745
EISBN: 978-1-62708-235-8
... for the components of the coolant-system assembly instead of type 321, because of the better brazeability of type 347 using silver brazing alloys. Also recommended was deflection testing at several orientations during final inspection of the brazed joints. Other recommendations were use of type 3B instead of 3A flux...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001754
EISBN: 978-1-62708-241-9
... of silver, confirming this as remnant cage material. The bottom image was the heavily deformed Titanium alloy fragment (Color figure online) Fig. 12 Representative EDS qualitative chemical analysis of the fragments shown in Fig. 11 The EDS results revealed that two of the larger fragments...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001843
EISBN: 978-1-62708-241-9
..., tin–silver, and tin–silver–copper. All three alloys have similar solderability property to the lead-tin solders they are replacing. However, one property they do not possess is an inherent resistance to tin pest, since they no longer contain the pest mitigating lead. Testing of these lead-free solders...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.modes.c9001411
EISBN: 978-1-62708-234-1
..., and copper welding rods to B.S. 1077, or a copper-silver-phosphorus brazing alloy as recommended in B.S. 699, would have been preferable. The form of joint also leaves much to be desired; the filler metal had simply been run round the periphery of the pipe, there being little penetration between, and fusion...
Series: ASM Failure Analysis Case Histories
Volume: 3
Publisher: ASM International
Published: 01 December 2019
DOI: 10.31399/asm.fach.v03.c9001815
EISBN: 978-1-62708-241-9
... the sealed compressor chamber. A unique combination of applied stress, residual stress, stress riser, and grain size helped isolate the failure mechanism to a single production lot of material. fastening pin corrosion stress concentration copper alloys grain size variations scanning electron...
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
... alloys are susceptible to embrittlement by some low-melting metals and alloys. Tin, lead, and zinc melt below the maximum service temperature of the turbine, which was 462 °C (864 °F). One Sn-Zn system had a eutectic melting point of less than 204 °C (400 °F). Such metals can cause liquid-metal...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001335
EISBN: 978-1-62708-215-0
... for copper-base alloys revealed little difference between the two tubes. When an etchant with a small amount of silver nitrate added to the nitric acid was used, the grain boundaries of the embrittled tube were attacked ( Fig. 2 ), suggesting that an intergranular constituent was causing the embrittlement...
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
... be reduced on the surface of a more active metal—for example, copper on aluminum or steel, silver on copper. This process is also known as cementation, especially with regard to aluminum alloys. The resulting metallic deposit provides cathodic sites for further galvanic corrosion of the more active metal...
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
... in galvanic couples with other metals or alloys. This effect is observed with gold and silver coatings on copper, nickel, aluminum, and their alloys. Uniform Corrosion Uniform corrosion, or general corrosion, is a corrosion process exhibiting uniform thinning that proceeds without appreciable localized...
Series: ASM Failure Analysis Case Histories
Volume: 2
Publisher: ASM International
Published: 01 December 1993
DOI: 10.31399/asm.fach.v02.c9001310
EISBN: 978-1-62708-215-0
..., arsenic, tin, silver, sulfur, chlorine, calcium, iron, sodium, and potassium were detected in the corrosion product. EDX analysis of the intergranularly attacked portion showed that the copper-zinc ratio had increased. It indicated the selective loss of zinc. Analysis of the porous mass in the crevice...
Series: ASM Failure Analysis Case Histories
Publisher: ASM International
Published: 01 June 2019
DOI: 10.31399/asm.fach.bldgs.c9001171
EISBN: 978-1-62708-219-8
... , Ref 10 , 11 , 12 . The more common are: A reduction of the carbon content of the steel The aim of this technique is to reduce the amount of M 23 C 6 at the austenitic grain boundaries. This method is the basis of some commercial alloys as, for example, the extra-low carbon stainless...
Series: ASM Handbook Archive
Volume: 11
Publisher: ASM International
Published: 01 January 2002
DOI: 10.31399/asm.hb.v11.a0003519
EISBN: 978-1-62708-180-1
...… White pieces of lined paper Color standard, note paper, drawing paper, and collection funnel Plastic bags, 4 × 4 in. Sample collection Swabs Sample collection—always keep one for control sample Alloy reference list Materials, compositions, specifications, data Hardness Conversion Charts...
Series: ASM Handbook
Volume: 11
Publisher: ASM International
Published: 15 January 2021
DOI: 10.31399/asm.hb.v11.a0006780
EISBN: 978-1-62708-295-2
...Approximate temperatures for onset of creep behavior for select alloy groups Table 1 Approximate temperatures for onset of creep behavior for select alloy groups Alloy group Temperature for onset of creep °C °F T as ratio of T M , K Aluminum alloys 150–200...
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...