Abstract
A model is proposed for the development of the first stage of the yield point return in Nickel 200. It is assumed that immediately after straining and unloading, vacancies cre-ated during deformation become trapped by interstitial carbon atoms. The carbon-va-cancy pairs thus formed then reorient quickly in the stress fields of nearby dislocations thus reducing the dislocation line energy so that dislocation pinning occurs. This model is based on a hypothesis proposed by Rose and Glover in 1966 for austenitic stainless steel.
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Cribb, W.R., Reed-Hill, R.E. The initial development of a yield point due to carbon in nickel 200 during static strain aging. Metall Trans A 9, 887–890 (1978). https://doi.org/10.1007/BF02649831
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DOI: https://doi.org/10.1007/BF02649831