Temperature dependence of the linear expansion coefficients of some Fe-Cr-Ni alloys in the temperature range 4.2 to 300 K |
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| Authors: | VYa Ilichev VP Popov LV Skibina MM Chernik |
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| Affiliation: | Physico-Technical Institute of Low Temperatures of the Ukrainian Academy of Sciences, Kharkov, USSR'' Kharkov State University |
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| Abstract: | The temperature dependence of the linear expansion coefficients of Cr18Ni10, Cr18Ni15 and Cr18Ni25 alloys has been studied in the temperature range 4.2 to 300 K. Using dilatometric curves the temperature range (195-60 K) of the martensitic transformation on cooling was determined for metastable Cr18Ni10 alloy single crystals.The linear expansion coefficients of the stable structure Cr18Ni25 and Cr18Ni15 and metastable Cr18Ni10 alloys were found to become negative around 25 K; this effect is assumed to be associated with the antiferromagnetic rearrangement in austenite |
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