Effect of anisotropic microstructure of a 12Cr-ODS steel on the fracture behaviour in the small punch test

The small punch (SP) test is a novel technique that uses a relatively small volume of material, to enable a measure of load versus deflection to determine the mechanical behaviour of the alloy. This study aims to investigate the mechanical properties of Zircaloy-4 (Zr-4) alloy which will be used for construction of many of the core components in ANSTO’s replacement research reactor at Lucas Heights in Australia. The Zr-4 alloy was hydrided under different conditions to simulate the radiation-induced reduction in fracture toughness over the service life of the reactor. The SP test was applied to determine the deformation and fracture behaviour of the hydrided materials. It was found that as the hydride formation increased, the equivalent fracture strain (eqf) of the alloy decreased to lower values.

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Small punch test on the analysis of fracture behaviour of PLA-nanocomposite films

Polymer Testing ◽

10.1016/j.polymertesting.2013.10.013 ◽

2014 ◽

Vol 33 ◽

pp. 21-29 ◽

Cited By ~ 18

Author(s):

C. Rodríguez ◽

D. Arencón ◽

J. Belzunce ◽

M.Ll. Maspoch

Keyword(s):

Fracture Behaviour ◽

Nanocomposite Films ◽

Small Punch Test ◽

Small Punch ◽

Punch Test

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An Analysis of Deformation and Fracture Behaviour of Zircaloy-4 Alloy Using Small Punch Test

Materials Science Forum - PRICM-5 ◽

10.4028/0-87849-960-1.1415 ◽

2005 ◽

pp. 1415-1420 ◽

Cited By ~ 1

Author(s):

M.D. Callaghan ◽

Wing Yiu Yeung ◽

Maurice I. Ripley ◽

David G. Carr

Keyword(s):

Fracture Behaviour ◽

Small Punch Test ◽

Small Punch ◽

Punch Test ◽

Deformation And Fracture

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On the Correlation of Fracture Quantities in Small Punch Test

Key Engineering Materials ◽

10.4028/www.scientific.net/kem.592-593.275 ◽

2013 ◽

Vol 592-593 ◽

pp. 275-278

Author(s):

Ferdinand Dobeš ◽

Petr Dymáček

Keyword(s):

Fracture Strain ◽

Fracture Behaviour ◽

Small Punch Test ◽

Small Punch ◽

Punch Test ◽

Strain Fracture ◽

Constant Rate ◽

Fracture Appearance ◽

Mutual Relations

Several possible routes are available for estimation of fracture behaviour from the results of small punch tests performed at constant rate of deflection. The routes include: (i) measurement of relevant dimensions directly on ruptured specimens, (ii) determination of critical deflections on the load vs. deflection curves and (iii) integration of these curves up to specific points. Equivalent fracture strain, fracture energy or fracture toughness are then evaluated from the obtained quantities. The mutual relations among the quantities are demonstrated by the results of small punch tests performed on a Fe-Al-based alloy in the temperature range extending from brittle up to ductile fracture appearance.

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