Investigation of small punch creep of a 2124Al alloy reinforced by SiC particulates DOBES, F., MILICKA, K. vol. 43 (2005), no. 1, pp. 66 - 72
Abstract Creep behaviour of the alloy 2124Al reinforced with 20 vol.% silicon carbide particulates was studied at temperatures from 623 to 773 K by small punch testing with a constant force. The time dependence of the central deflection was registered and the minimum deflection rate was determined. The dependence of this quantity on applied force is interpreted in terms of the threshold force. Novel procedure for comparison of force in small punch testing and stress in conventional creep testing is given. Key words small punch test, creep rate, stress exponent, activation energy, threshold stress Full text (195 KB)
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