The influence of different alloying elements on the development of the [gamma]/[gamma]' microstructure of nickel-base superalloys during high-temperature annealing and deformation Export

@article{citeulike:311673, abstract = {The development of the [gamma]/[gamma]' microstructure during high-temperature annealing and deformation is investigated in a series of experimental nickel-base superalloys, with varying contents of alloying elements, in particular rhenium, ruthenium and iridium. Some samples were creep-deformed in compression at 950 [deg]C to different plastic strains [epsilon]pl, while others were aged at 1000 [deg]C. By investigating the resulting microstructures one can deduce that the development of the [gamma]' microstructure is influenced in two ways by the alloying elements. The lattice misfit and thereby the coherency stresses between [gamma]' phase and [gamma] matrix are altered but also the rate of diffusion in the [gamma] matrix. While coherency stresses are the driving force for changes of the [gamma]' shape at elevated temperatures, the development of the [gamma]' structure itself is diffusion-controlled. To understand the effects of alloying elements on the development of the [gamma]' structure, the modifications of both the lattice misfit and the modifications of diffusion rate caused by the alloying elements have to be taken into account.}, author = {Pyczak, F. and Devrient, B. and Neuner, F. C. and Mughrabi, H.}, citeulike-article-id = {311673}, citeulike-linkout-0 = {http://dx.doi.org/10.1016/j.actamat.2005.04.041}, citeulike-linkout-1 = {http://www.sciencedirect.com/science/article/B6TW8-4GG2JRJ-1/2/c8d094a83c1f3cbd3cce5d4822052d2d}, doi = {10.1016/j.actamat.2005.04.041}, journal = {Acta Materialia}, keywords = {gamma-gamma-prime, microstructural-evolution, ni-base-superalloys}, month = {August}, number = {14}, pages = {3879--3891}, posted-at = {2005-09-05 18:28:25}, priority = {2}, title = {The influence of different alloying elements on the development of the [gamma]/[gamma]' microstructure of nickel-base superalloys during high-temperature annealing and deformation}, url = {http://dx.doi.org/10.1016/j.actamat.2005.04.041}, volume = {53}, year = {2005} }

TY - JOUR ID - citeulike:311673 L3 - citeulike-article-id:311673 N2 - The development of the [gamma]/[gamma]' microstructure during high-temperature annealing and deformation is investigated in a series of experimental nickel-base superalloys, with varying contents of alloying elements, in particular rhenium, ruthenium and iridium. Some samples were creep-deformed in compression at 950 [deg]C to different plastic strains [epsilon]pl, while others were aged at 1000 [deg]C. By investigating the resulting microstructures one can deduce that the development of the [gamma]' microstructure is influenced in two ways by the alloying elements. The lattice misfit and thereby the coherency stresses between [gamma]' phase and [gamma] matrix are altered but also the rate of diffusion in the [gamma] matrix. While coherency stresses are the driving force for changes of the [gamma]' shape at elevated temperatures, the development of the [gamma]' structure itself is diffusion-controlled. To understand the effects of alloying elements on the development of the [gamma]' structure, the modifications of both the lattice misfit and the modifications of diffusion rate caused by the alloying elements have to be taken into account. IS - 14 JF - Acta Materialia EP - 3891 TI - The influence of different alloying elements on the development of the [gamma]/[gamma]' microstructure of nickel-base superalloys during high-temperature annealing and deformation VL - 53 SP - 3879 KW - gamma-gamma-prime KW - microstructural-evolution KW - ni-base-superalloys AU - Pyczak, F AU - Devrient, B AU - Neuner, FC AU - Mughrabi, H PY - 2005/08// UR - http://dx.doi.org/10.1016/j.actamat.2005.04.041 ER -