Abstract.
Application of the small punch test in technical practice is critically dependent on the existence of reliable methods for conversion of data measured by means of such a biaxial test to equivalent quantities of uniaxial tests. In the paper, various methods for recalculation of force in small punch test to stress in conventional creep test are investigated. The methods include: (i) classical "CEN Workshop Agreement" model, (ii) empirical "force to stress conversion" method, (iii) modified Chakrabarty method and (iv) "constant deflection rate" method. The methods are examined using the data obtained by testing Fe-Al based alloy with additions of chromium and cerium. The tested alloy enables verification of conversion methods for different crystallographic lattices, namely D03 at lower temperatures and B2 at elevated temperatures.
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