Abstract
Creep cavitation is a heterogeneous process. Thus, cavities coalesce locally to form microcracks long before final fracture. This process has been studied in a Ni-1% Sn alloy whereby macrosegregation of the tin during casting produces an inhomogeneous distribution of cavities and microcracks. The result is an increase in both strength and ductility, as compared to the same alloy with a homogeneous distribution of solute. This is because, while cavities and microcracks form readily in the Sn-rich regions, failure requires the propagation of cracks through regions with low Sn content where the creep ductility is high.
Access this chapter
Tax calculation will be finalised at checkout
Purchases are for personal use only
Preview
Unable to display preview. Download preview PDF.
References
Perry, A.J., J. of Mater. Sci.9 (1974), 1016.
Raj, R., Acta Met.26 (1978), 995.
Argon, A.S.,Recent Advances in Creep and Fracture of Engineering Materials and Structures, B. Wilshire and D.R.J. Owen, eds. ( Pinridge Press, 1982 ), 1.
Cocks, A.C.F. and Ashby, M.F., Prog, in Mater. Sci.27 (1982), 189.
Svensson, L.E. and Dunlop, G.L., Int. Met. Rev.26 (1981), 109.
Argon, A.S., Chen, I.W. and Lau, C.W.,Creep-Fatigue-Environment Interactions, R.M. Pelloux and N.S. Stoloff, eds. (Met. Soc. of ALVIE, 1980 ), 46.
Dyson, B.F., (1982), private communication.
Dyson, B.F., Met. Sci. J.10 (1976), 349.
Dyson, B.F., Can. Met. Quart.18 (1979), 31.
Rice, J.R., Acta Met.29 (1981), 675.
Porter, J.R., Blumenthal, W. and Evans, A.G., Acta Met.29 (1981), 1899.
White, C.L. and Padgett, R.A., Scipta Met.16 (1982), 461.
White, C.L., Schneibel, J.H. and Padgett, R.A., Met. Tans.14A (1983), 595.
Ashbv, M.F., Surface Sci.31 (1972), 498.
Author information
Authors and Affiliations
Editor information
Editors and Affiliations
Rights and permissions
Copyright information
© 1985 Martinus Nijhoff Publisher, Dordrecht
About this paper
Cite this paper
Burger, G., Wilkinson, D.S. (1985). The Effect of Solute Distribution on Creep Fracture in a Ni Alloy. In: Krausz, A.S. (eds) Time-Dependent Fracture. Springer, Dordrecht. https://doi.org/10.1007/978-94-009-5085-6_4
Download citation
DOI: https://doi.org/10.1007/978-94-009-5085-6_4
Publisher Name: Springer, Dordrecht
Print ISBN: 978-94-010-8748-3
Online ISBN: 978-94-009-5085-6
eBook Packages: Springer Book Archive