Journal
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING
Volume 870, Issue -, Pages -Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.msea.2023.144855
Keywords
Titanium alloy; omega precipitations; Dislocation band; Transmission electron microscopy
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The mechanical response of ? precipitations in a Ti-15Mo alloy during compression test was examined using transmission electron microscopy (TEM) observation. The interaction between dislocation slips and ? precipitations was investigated, revealing the absence of certain ? variants and the presence of others in deformation bands. Two mechanisms, shear and disordering, were proposed to explain the mechanical responses of ? precipitations. This understanding will contribute to the strengthening strategy and alloy design of titanium.
The mechanical response of ? precipitations in a Ti-15Mo alloy during compression test is investigated by transmission election microscopy (TEM) observation. The interaction between the dislocation slips and ? precipitations was focused, by which some of the ? variants were absent, while others were detected, in deformation bands. Two mechanisms including the shear and the disordering mechanisms are proposed to uncover the underlying mechanisms of mechanical responses of ? precipitations. This understanding will provide new insight onto the strengthening strategy and alloy design of titanium.
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