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contaminant sources

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Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2009
DOI: 10.31399/asm.tb.sfa.t52780141
EISBN: 978-1-62708-268-6
... Abstract Contaminants can be a cause of numerous types of system failures. There are numerous techniques for confirming contaminant presence. When the presence of a contaminant is suspected, the failure analysis team must find and eliminate the contaminant source, which can be obvious or quite...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2015
DOI: 10.31399/asm.tb.cpi2.t55030172
EISBN: 978-1-62708-282-2
... magnesium subjected to alternate immersion in 3% NaCl. Source: Ref 4 Fig. 4 Effect of alloying and contaminant metals on the corrosion rate of magnesium as determined by alternate immersion in 3% NaCl solution. Source: Ref 5 Contaminant tolerances and manganese limits for magnesium die...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900241
EISBN: 978-1-62708-350-8
... of surface particle contamination such as grinding fines and machining chips in blind holes. Such contamination will lead to nonuniform case formation and, depending on how severe the contamination, varying degrees of surface hardness. Cutting fluid residue can be a particularly severe source of surface...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230513
EISBN: 978-1-62708-298-3
... of PPE, this set of controls effectively protects workers. Fig. 29.3 Illustration of the use of wet methods and point-source ventilation to drill into beryllium-containing process piping Fig. 29.4 Mock-up demonstration of the use of foam to contain beryllium contamination in process...
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2003
DOI: 10.31399/asm.tb.pnfn.t65900185
EISBN: 978-1-62708-350-8
.... The contamination can be due to decarburization from previous heat treatment operations, machining operations using coolants that contain silicones, or inadequate cleaning after salt bath treatment. Another problem source is contaminated grit on glass bead blast or shot blast. Precleaning is mandatory for both gas...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230499
EISBN: 978-1-62708-298-3
... from clothing, μg/workday Inhalation, μg/workday Lower limit 0.0926 0.116 Maximum value 0.461 1.63 Source: Deubner et al. 2001 28.4 Contamination Sources Exposure to beryllium can occur by inhalation, ingestion, and skin contact. Activities that may lead to beryllium...
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Published: 01 July 1997
Fig. 10 Characteristics of a metal surface showing roughness and contaminants present. Source: Ref 7 More
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Published: 01 December 2008
Fig. 8 Influence of alloying element on corrosion rate in contaminated sulfuric acid. Source: Ref 11 More
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Published: 01 December 2001
Fig. 3 Effect of nickel and copper contamination on the salt-spray-corrosion performance of diecast AZ91 alloy. Source: Ref 3 More
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Published: 01 December 2015
Fig. 5 Effect of nickel and copper contamination on the salt-spray corrosion performance of die-cast AZ91 alloy. Source: Ref 7 More
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Published: 01 October 2012
Fig. 3.16 Effect of alloying and contaminant metals on the corrosion rate of magnesium as determined by alternate immersion in 3% NaCl solution. Source: Ref 3.8 More
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Published: 01 December 2015
Fig. 4 Effect of alloying and contaminant metals on the corrosion rate of magnesium as determined by alternate immersion in 3% NaCl solution. Source: Ref 5 More
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Published: 01 December 2001
Fig. 2 Effect of alloying and contaminant metals on the corrosion rate of magnesium as determined by alternate immersion in 3% NaCl solution. Source: Ref 2 More
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Published: 01 November 2007
Fig. 16.10 Intergranular cracking in the heat-affected zone of a weld joint for Type 304 pipe that was contaminated with zinc-rich paint when welding was performed. Source: Ref 50 More
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Published: 01 October 2012
Fig. 3.17 Effect of iron, nickel, and copper contaminant levels on ASTM B117 salt spray corrosion rates in AZ91 alloy versus cold-rolled steel and 380 die-cast aluminum. Source: Ref 3.8 More
Book Chapter

Series: ASM Technical Books
Publisher: ASM International
Published: 01 August 2015
DOI: 10.31399/asm.tb.piht2.t55050293
EISBN: 978-1-62708-311-9
.... Tramp fluid buildup can occur from extraneous sources such as machining fluids on the workpieces, hydraulic oil leaks from hydraulic lines in the fixturing, and excess grease/oil that was applied to conveyors, bushings, and other lubrication points. These contaminate the water-polymer quenchant and can...
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Published: 01 June 2007
of all common corrosion defects (chromium carbides and nitrides, surface oxides formed during cooling after sintering, contamination with less noble metals, and crevice corrosion due to unfavorable pore sizes), except the presence of residual oxides from incomplete reduction during sintering. Source More
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 2009
DOI: 10.31399/asm.tb.bcp.t52230361
EISBN: 978-1-62708-298-3
..., with the target material providing its own solidified “skull” separating the molten portion from a water-cooled crucible or hearth. This characteristic avoids contamination from the container and makes the electron source an ideal heat source for both the evaporation and purification of materials. The use...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 July 1997
DOI: 10.31399/asm.tb.wip.t65930353
EISBN: 978-1-62708-359-1
... be fabricated. This design minimizes possible sources of contamination. Automatic GTAW can introduce contaminants into the chamber shielding atmosphere from motor lubricants and insulation. The severity of this contamination should be determined on an individual basis depending on the intended service...
Series: ASM Technical Books
Publisher: ASM International
Published: 01 December 2001
DOI: 10.31399/asm.tb.aub.t61170432
EISBN: 978-1-62708-297-6
... Effect of alloying and contaminant metals on the corrosion rate of magnesium as determined by alternate immersion in 3% NaCl solution. Source: Ref 2 Figure 3 illustrates the effect of increasing iron, nickel, and copper contamination on the standard ASTM salt-spray performance of die-cast AZ91...