On precipitation kinetics in TiNi shape memory alloys

The kinetics of Ti3Ni4 precipitation and changes of properties in Ti–50.5at.%Ni are discussed. Ti3Ni4 forms dominantly at grain boundaries when the defect density is low. Experimental data fit the Kolmogorov–Johnson–Mehl–Avrami relationship describing the reaction kinetics. Aging influences significantly properties of Ti–50.5at.%Ni.

[1]  Michael T. Todinov.  On some limitations of the Johnson–Mehl–Avrami–Kolmogorov equation , 2000 .

[2]  Minoru Nishida,et al.  Precipitation processes in near-equiatomic TiNi shape memory alloys , 1986 .

[3]  K. Mazanec,et al.  Influence of work hardening and heat treatment on the substructure and deformation behaviour of TiNi shape memory alloys , 1995 .

[4]  T. Rautiainen,et al.  Influence of the atomic diffusion mechanism on morphologies, kinetics, and the mechanisms of coarsening during phase separation , 1999 .

[5]  M. Avrami.  Kinetics of Phase Change. II Transformation‐Time Relations for Random Distribution of Nuclei , 1940 .

[6]  李幼升,et al.  Ph , 1989 .

[7]  M. Avrami.  Kinetics of Phase Change. I General Theory , 1939 .

[8]  Ee Underwood,et al.  The Mathematical Foundations of Quantitative Stereology , 1972 .

[9]  S. Nenno,et al.  Crystal structure and morphology of the metastable X phase in shape memory Ti-Ni alloys , 1986 .

[10]  D. Huse,et al.  Corrections to late-stage behavior in spinodal decomposition: Lifshitz-Slyozov scaling and Monte Carlo simulations. , 1986, Physical review. B, Condensed matter.

[11]  C. M. Wayman,et al.  Further electron microscopy studies of the Ti11 Ni14 phase in an aged Ti52at%Ni shape memory alloy , 1986 .

[12]  D. Li,et al.  The effect of stress on soft modes for the phase transformation in a Ti-Ni alloy , 1991 .

[13]  C. M. Wayman,et al.  Shape-Memory Materials , 2018 .

[14]  Minoru Nishida,et al.  All-round shape memory effect in Ni-rich TiNi alloys generated by constrained aging , 1984 .

[15]  Jordi Ortín,et al.  Thermodynamic analysis of thermal measurements in thermoelastic martensitic transformations , 1988 .

[16]  M. Avrami.  Granulation, Phase Change, and Microstructure Kinetics of Phase Change. III , 1941 .

[17]  D. Li,et al.  The texture of Ti-51.5 at.% Ni rolling plate and its effect on the all-around shape memory effect , 1990 .

[18]  Vives,et al.  Comment on "Kinetics of spinodal decomposition in the Ising model with vacancy diffusion" , 1996, Physical review. B, Condensed matter.

[19]  M. Athènes,et al.  A Monte-Carlo study of B2 ordering and precipitation via vacancy mechanism in b.c.c. lattices , 1996 .

[20]  B. Fultz.  Suppressed kinetics of short range ordering at low temperatures , 1987 .

[21]  C. J. Smithells,et al.  Smithells metals reference book , 1949 .