The relation between changes in ductility and in ductile fracture topography: Control by microvoid nucleation

作者: A.W. Thompson

DOI: 10.1016/0001-6160(83)90148-7

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摘要: Abstract Changes in microvoid size on ductile fracture surfaces under varying experimental conditions can arise several ways. An analysis is developed here for the case which an altered density of nuclei, expressed as volume fraction nucleation microvoids, sole reason changes. The based concept that be regarded alteration effective nuclei. shown to agree with form available data. Although more detailed experiments are necessary before a complete comparison made, physical rationale presented appears qualitatively correct, and selfconsistent.

参考文章(30)
S.H. Goods, L.M. Brown, Overview No. 1 Acta Metallurgica. ,vol. 27, pp. 1- 15 ,(1979) , 10.1016/0001-6160(79)90051-8
John R. Low, The fracture of metals Progress in Materials Science. ,vol. 12, pp. 3- 96 ,(1963) , 10.1016/0079-6425(63)90036-7
Anthony W. Thompson, Hydrogen-assisted fracture in single-phase nickel alloys Scripta Metallurgica. ,vol. 16, pp. 1189- 1192 ,(1982) , 10.1016/0036-9748(82)90094-1
H. F. Fischmeister, E. Navara, K. E. Easterling, Effects of Alloying on Structural Stability and Cohesion between Phases in Oxide/Metal Composites Metal Science Journal. ,vol. 6, pp. 211- 215 ,(1972) , 10.1179/030634572790445803
R. Garber, I. M. Bernstein, A. W. Thompson, Hydrogen assisted ductile fracture of spheroidized carbon steels Metallurgical Transactions A. ,vol. 12, pp. 225- 234 ,(1981) , 10.1007/BF02655195
G. G. Garrett, J. F. Knott, The influence of compositional and microstructural variations on the mechanism of static fracture in aluminum alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 9, pp. 1187- 1201 ,(1978) , 10.1007/BF02652242
Cecil G. Rhodes, Anthony W. Thompson, Microstructure and hydrogen performance of alloy 903 Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 8, pp. 949- 954 ,(1977) , 10.1007/BF02661578
Richard Neal Gardner, Crack initiation at dislocation cell boundaries in the ductile fracture of metals Materials Science and Engineering. ,vol. 29, pp. 169- 174 ,(1977) , 10.1016/0025-5416(77)90123-9
R.J. Coyle, J.A. Kargol, N.F. Fiore, Hydrogen-assisted ductile fracture in a Ni-base superalloy Scripta Metallurgica. ,vol. 14, pp. 939- 942 ,(1980) , 10.1016/0036-9748(80)90325-7