SYMPOSIA PAPER Published: 01 January 1988
STP45315S

Assessment of the Degree of Hydrogen Embrittlement Produced in Plated High-Strength 4340 Steel by Paint Strippers Using Slow Strain Rate Testing

Source

The present work demonstrates how a slow strain rate test can be used to quantify rapidly the severity of hydrogen embrittlement produced in porous cadmium plated-and-baked high-strength 4340 steel by paint strippers. The results of multiple slow strain rate tests, conducted at a crosshead displacement rate of 2 × 10-4 mm/s using notched tension specimens in various paint strippers, show that a minimum mean fracture stress within the range of 1700 to 1850 MN/m2 can be correlated with the pass/fail criterion for acceptability of paint strippers in standard notched C-ring tests. The advantages of using a slow strain rate test as a viable alternative to existing standard methods for hydrogen embrittlement testing are discussed.

Author Information

Pollock, William
Aeronautical Research Laboratory, Defence Science and Technology Organisation, Department of Defence, Melbourne, Australia
Grey, Colin
Materials Research Laboratories, Defence Science and Technology Organisation, Department of Defence, Melbourne, Australia
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Details
Developed by Committee: F07
Pages: 372–386
DOI: 10.1520/STP45315S
ISBN-EB: 978-0-8031-6239-6
ISBN-13: 978-0-8031-0959-9