Temper embrittlement of a CrMo low-alloy steel evaluated by means of small punch testing

Temper embrittlement of a 2.25Cr1Mo steel is evaluated by use of small punch testing with disc specimens. Clearly, a ductile-to-brittle transition temperature of the steel may be determined by this test, but the value obtained is much lower than that determined by the standard Charpy test. The steel...

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Bibliographic Details
Published in:Materials science & engineering. A, Structural materials : properties, microstructure and processing Structural materials : properties, microstructure and processing, 2000-04, Vol.281 (1), p.75-81
Main Authors: Song, S.-H, Faulkner, R.G, Flewitt, P.E.J, Smith, R.F, Marmy, P
Format: Article
Language:English
Subjects:
Applied sciences
Embrittlement
Exact sciences and technology
Fractures
Grain boundaries
Low-alloy steel
Mechanical properties and methods of testing. Rheology. Fracture mechanics. Tribology
Metals. Metallurgy
Non-destructive testing
Segregation
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Summary:Temper embrittlement of a 2.25Cr1Mo steel is evaluated by use of small punch testing with disc specimens. Clearly, a ductile-to-brittle transition temperature of the steel may be determined by this test, but the value obtained is much lower than that determined by the standard Charpy test. The steel exhibits some temper embrittlement when tempered at 400°C for 86 days.
ISSN:0921-5093
1873-4936
DOI:10.1016/S0921-5093(99)00740-6