Tensile and Compressive Stress Tests for Metallic Coatings
Determining the tensile (pulling) and compressive (pushing) stress for metallic coatings is easier thanks to a new ASTM test method, B975, Test Method for Measurement of Internal Stress of Metallic Coatings by Split Strip Evaluation (Deposit Stress Analyzer Method). The new standard provides a simple and effective way to determine the tensile (pulling) and compressive (pushing) stress for metallic coatings used on a wide range of consumer products such as pens, doorknobs, lamps, cars, jewelry and more. The standard will also be used in the automotive, aerospace and military industries, particularly by companies that create metallic layers for parts and components.
Many metal parts and objects manufactured worldwide are electroplated with durable metallic coatings to improve appearance, reduce friction, increase chemical and environmental corrosion resistance and extend functional life.
The subcommittee that developed B975 is seeking laboratories to participate in an interlaboratory study for the standard.
To purchase standards, visit www.astm.org and search by the standard designation, or contact ASTM Customer Relations (tel +1.877.909.ASTM; sales@astm.org). ASTM welcomes participation in the development of its standards. Become a member at www.astm.org/JOIN.
CONTACT Technical Information: Frank H. Leaman, Specialty Testing and Development Company Inc. • York, Pa. • tel +1.717.891.4989 | ASTM Staff: Diane Lake • Phone: 610-832-9603 | Upcoming Meeting: May 5 • May Committee Week • San Antonio, Texas