%0 Journal Article %1 springerlink:10.1007/BF02663332 %A Nakada, Y. %A Keh, A. %D 1971 %I Springer Boston %J Metallurgical and Materials Transactions B %K Ni-C ssh %P 441-447 %R 10.1007/BF02663332 %T Solid-solution strengthening in Ni-C alloys %U http://dx.doi.org/10.1007/BF02663332 %V 2 %X Pure nickel and Ni-C solid-solution alloys of various grain sizes (ASTM no. 2 to 10), with eight different carbon concentrations in the range 0.008 to 0.304 wt pct, were strained in tension between 4� and 474�K at a strain rate of 8.3 � 10−5per sec. The critical resolved shear stress (CRSS) was independent of temperature in the range 200� to 474� K (athermal region). Below 200�K, the CRSS increased sharply with decreasing temperature, the increase being larger for alloys of high carbon concentration. Both the temperature-dependent and the athermal alloy hardening were found to be linear functions of carbon concentration. The strain-rate sensitivities of flow stress of alloys did not change with strain and were larger for alloys of higher carbon concentrations. The Hall-Petch relation was used to calculate the CRSS of Ni-C single crystals, Τ0 f, so that the data can be compared with existing alloy hardening theories. The data are compatible with the solid-solution theory of Friedel in which the hardening is attributed to both elastic and electrical interactions between dislocation cores and solute atoms.

@article{springerlink:10.1007/BF02663332, abstract = { Pure nickel and Ni-C solid-solution alloys of various grain sizes (ASTM no. 2 to 10), with eight different carbon concentrations in the range 0.008 to 0.304 wt pct, were strained in tension between 4� and 474�K at a strain rate of 8.3 � 10−5per sec. The critical resolved shear stress (CRSS) was independent of temperature in the range 200� to 474� K (athermal region). Below 200�K, the CRSS increased sharply with decreasing temperature, the increase being larger for alloys of high carbon concentration. Both the temperature-dependent and the athermal alloy hardening were found to be linear functions of carbon concentration. The strain-rate sensitivities of flow stress of alloys did not change with strain and were larger for alloys of higher carbon concentrations. The Hall-Petch relation was used to calculate the CRSS of Ni-C single crystals, Τ0 f, so that the data can be compared with existing alloy hardening theories. The data are compatible with the solid-solution theory of Friedel in which the hardening is attributed to both elastic and electrical interactions between dislocation cores and solute atoms.}, added-at = {2010-11-11T16:03:17.000+0100}, affiliation = {Bell Telephone Laboratories Allentown Pa}, author = {Nakada, Y. and Keh, A.}, biburl = {https://www.bibsonomy.org/bibtex/2862b8ac538bd90878c272c6eb0c2c451/riche.ma}, description = {SpringerLink - Metallurgical and Materials Transactions B, Volume 2, Number 2}, doi = {10.1007/BF02663332}, interhash = {cb99512e145a490e5c045c4c11642334}, intrahash = {862b8ac538bd90878c272c6eb0c2c451}, issn = {1073-5615}, issue = {2}, journal = {Metallurgical and Materials Transactions B}, keyword = {Chemistry and Materials Science}, keywords = {Ni-C ssh}, pages = {441-447}, publisher = {Springer Boston}, timestamp = {2010-11-11T16:03:17.000+0100}, title = {Solid-solution strengthening in Ni-C alloys}, url = {http://dx.doi.org/10.1007/BF02663332}, volume = 2, year = 1971 }