Pan section of an Armored Face Conveyor (AFC).

Corrosion Fatigue in Longwall Mining

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  • 12:48PM May 29, 2014
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What is Corrosion Fatigue? Corrosion fatigue is the combined action of fatigue and corrosion. It can produce a failure in fewer cycles and lower loads than if either corrosion or fatigue were acting alone. Of all corrosion failure mechanisms, it is the most difficult to identify especially in the presence of low-frequency loading. At very […]

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New ASTM Adult Jewelry Standard Treats Adults Like Children

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  • 12:51PM Jul 25, 2013
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The recently released “Standard Consumer Safety Specification for Adult Jewelry” (ASTM F2999) is surprisingly similar to ASTM F2923 which specifies requirements for Children’s Jewelry. The limits are identical for the content of paints and surface coatings for antimony (Sb), arsenic (As), barium (Ba), cadmium (Cd), chromium (Cr), mercury (Hg), and selenium (Se). While the lead […]

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CPSC’s Decision on Cadmium in Toy Jewelry – Solubility and Accessibility Matter

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  • 1:40PM Feb 06, 2013
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The U.S. Consumer Product Safety Commission recently denied a petition asking the Commission to ban “any metal toy jewelry containing more than trace amounts of cadmium by weight, which in a foreseeable manner could be ingested by children” as a hazardous substance. The Commission’s engagement with ASTM committees in the development of ASTM standards (ASTM […]

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Metal Implant Liability Invigorates Advances in Polymer Alternatives

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  • 2:11PM Oct 15, 2012
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By Crystal Morrison, Ph.D. Recalls, regulatory warnings, and legal actions in the United States and abroad have called into question the safety and durability of traditional metal-on-metal (MoM) medical device materials. Hip replacements, for example, have been under intense scrutiny because wear debris for titanium implants pose patient health risks, such as tissue damage at […]

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