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The effect of carbon at interface of austenite on manganese segregation was investigated. Carbon segregating at interface of retained austenite within ferrite grains can attract manganese atoms to form atomic couples C-Mn filling into vacancies. C and Mn segregation can make the interface of austenite more stabilization so that the interface cannot transform to twin martensite under 20% pre-straining...
The segregation of rare earth (RE) atoms in solution-treated Mg-Gd-Y-Zr alloy after a 6-year natural ageing at room temperature has been comprehensively investigated by atomic-scale high angle annular dark field (HAADF)-scanning transmission electron microscopy (STEM) technique. When the aged specimen is viewed from [0001]Mg, RE enriched regions without a definite RE atom arrangement as well as three...
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