Mechanism of large strain accommodation assisted by shear localization in a precipitation-hardened Cu–Be alloy

Ivan Lomakin*, Alfiia Nigmatullina, Xavier Sauvage

*Tämän työn vastaava kirjoittaja

Tutkimustuotos: LehtiartikkeliArticleScientificvertaisarvioitu

2 Sitaatiot (Scopus)
244 Lataukset (Pure)

Abstrakti

The influence of the structural state on deformation mechanisms under large strains was investigated in a Cu – 2 wt.% Be alloy. Torque evolutions during straining exhibit serrations typical of structural relaxations in the precipitation-hardened alloy, but not in the solid solution state. Microstructure characterization revealed that homogeneous deformation of the solid solution led to strong grain size reduction (20 nm), while localization occurred in the precipitated state with numerous shear bands. The role of CuBe precipitates on hindering dislocation glide and the resulting shear localization under large strain is discussed.

AlkuperäiskieliEnglanti
Artikkeli141760
Sivumäärä6
JulkaisuMaterials Science and Engineering A
Vuosikerta823
DOI - pysyväislinkit
TilaJulkaistu - 17 elok. 2021
OKM-julkaisutyyppiA1 Julkaistu artikkeli, soviteltu

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