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Initial Hardening in Quenched Gold
Author(s) -
Bapna M. S.,
Mori T.,
Meshii M.
Publication year - 1970
Publication title -
physica status solidi (b)
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.51
H-Index - 109
eISSN - 1521-3951
pISSN - 0370-1972
DOI - 10.1002/pssb.19700400233
Subject(s) - materials science , hardening (computing) , quenching (fluorescence) , vacancy defect , drop (telecommunication) , thermodynamics , kinetics , composite material , metallurgy , analytical chemistry (journal) , crystallography , chemistry , fluorescence , physics , layer (electronics) , quantum mechanics , chromatography , telecommunications , computer science
Abstract The effects of dispersed vacancies on mechanical properties were examined in as‐quenched gold single crystals. A quench from 1000 °C produced an initial hardening of ≈200 p/mm 2 at 4.2 °K. This hardening increased with the quenching temperature and could be approximated by a linear or square root dependence on the vacancy concentration. The extent of the easy glide region was found to increase without a significant change in the work‐hardening coefficient. No yield drop was generated by the quench. The quenching effects were found to decrease with the test temperature below − 70 °C. The experimental results were interpreted in terms of hardening due to dispersed vacancies and/or small vacancy clusters. The kinetics of the aging at room temperature were also followed by yield stress measurements at liquid helium temperature.