High‐temperature testing in a Charpy impact pendulum using in‐situ Joule heating of the specimen

In this paper, an innovative approach to high‐temperature testing of subsize Charpy V notched specimens is introduced. The design concept is to heat the specimen on the specimen piece supports up to the moment of impact by flowing AC electric current through it. This approach allows a very accurate...

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Bibliographic Details
Published in:Fatigue & fracture of engineering materials & structures 2018-05, Vol.41 (5), p.1171-1182
Main Authors: Ferreirós, P.A., Alonso, P.R., Gargano, P.H., Rubiolo, G.H.
Format: Article
Language:English
Subjects:
Alloy systems
Alternating current
Anvils
Charpy V‐test
Ductile-brittle transition
Energy measurement
Eutectoid composition
Ferritic stainless steels
Fracture mechanics
Heating rate
High temperature effects
high‐temperature tests
Impact strength
impact testing
Impact tests
Ohmic dissipation
Phase transitions
subsize fracture specimen
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Summary:In this paper, an innovative approach to high‐temperature testing of subsize Charpy V notched specimens is introduced. The design concept is to heat the specimen on the specimen piece supports up to the moment of impact by flowing AC electric current through it. This approach allows a very accurate centring of the specimen with respect to the anvils and the control of their temperature up to the moment of impact. The temperature profile measured by using the in‐situ heating device on ferritic steel specimen over the notch temperature range of 400°C 
ISSN:8756-758X
1460-2695
DOI:10.1111/ffe.12761