Deformation and fracture behaviour of alumina-zirconia multi-material nanocomposites reinforced with graphene and carbon nanotubes

Author(s):  
Solomon Hanson Duntu ◽  
Kenneth Hukpati ◽  
Iftikhar Ahmad ◽  
Mohammad Islam ◽  
Solomon Boakye-Yiadom
2005 ◽  
Vol 475-479 ◽  
pp. 1415-1420 ◽  
Author(s):  
M.D. Callaghan ◽  
Wing Yiu Yeung ◽  
Maurice I. Ripley ◽  
David G. Carr

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.


2017 ◽  
Vol 702 ◽  
pp. 232-240 ◽  
Author(s):  
S. Ravi ◽  
J. Vanaja ◽  
V.D. Vijayanand ◽  
P. Rajasundaram ◽  
S. Vijayaraghavan ◽  
...  

2018 ◽  
Vol 774 ◽  
pp. 119-124
Author(s):  
Vàclav Sklenička ◽  
Květa Kuchařová ◽  
Marie Kvapilová ◽  
Luboš Kloc ◽  
Jiri Dvorak ◽  
...  

The components used in power plants generally operate at elevated and/or high temperature and are subjected to internal pressure. Under such conditions creep is of a great concern and there is an urgent demand for methods which can be used to predict the creep life. In this work, using our earlier published creep data for advanced creep-resistant T23 and P92 steels, the interrelationship between creep deformation and damage have been analysed by linking them to the identified acting mechanisms, in terms of empirical formulas for the fracture time assessment. The validity and the applicability of various formulas are examined with the objective to gain insight into the creep deformation and fracture behaviour of the steels under investigation.


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