Effect of grain size on the superelastic response of a FeMnAlNi polycrystalline shape memory alloy

abstract

• 2016 Acta Materialia Inc. The effect of heat treatments on superelasticity was investigated in a FeMnAlNi polycrystalline alloy using incremental tensile strain tests at room temperature. Large grains of more than several millimeters can be obtained by a cyclic heat treatment process and the average grain size can be controlled by the number of heat treatment cycles. Improved superelastic response is observed in samples with large relative grain sizes, exhibiting increased elongation to fracture, lower critical stress for transformation, and higher reversibility.

authors

• Karaman, Ibrahim

published proceedings

• SCRIPTA MATERIALIA

altmetric score

• 0.25

author list (cited authors)

• Tseng, L. W., Ma, J. i., Vollmer, M., Krooss, P., Niendorf, T., & Karaman, I.

citation count

• 46

complete list of authors

• Tseng, LW||Ma, Ji||Vollmer, M||Krooß, P||Niendorf, T||Karaman, I

publication date

• December 2016

publisher

• Elsevier  Publisher

published in

• Scripta Materialia  Journal

keywords

• Abnormal Grain Growth
• Fe-based Shape Memory Alloys
• FeMnAlNi
• Microstructure
• Superelasticity

Digital Object Identifier (DOI)

• 10.1016/j.scriptamat.2016.07.036

start page

• 68

end page

• 72

volume

• 125

URL

• http%3A%2F%2Fdx.doi.org%2F10.1016%2Fj.scriptamat.2016.07.036