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|Type:||Artigo de periódico|
|Title:||Grain Size Effect on the Structural Parameters of the Stress Induced epsilon(hcp) - Martensite in Iron-Based Shape Memory Alloy|
|Abstract:||The aim of this work was to study the effect of austenitic grain size (GS) reduction on the structural parameters of the epsilon(hcp)-martensite in stainless shape memory alloy (SMA). Rietveld refinement data showed an expansion in c-axis and a reduction in a and b-axis with thermo-mechanical cycles for all samples analyzed. Samples with 75 <= GS (mu m) = 129 were analyzed. It was also observed an increase of the unit cell volume in this phase with GS reduction. The smallest grain size sample (GS = 75 mu m) presented a c/a ratio of 1.649, and approximately 90% of total shape memory recovery.|
|Subject:||shape memory effect|
|Editor:||Univ Fed Sao Carlos, Dept Engenharia Materials|
|Appears in Collections:||Artigos e Materiais de Revistas Científicas - Unicamp|
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