A study of hydrogen charging on 10M Ni-Mn-Ga single crystal

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A study of hydrogen charging on 10M Ni-Mn-Ga single crystal. / Ge, Yanling; Aaltio, Ilkka; Hannula, Simo-Pekka.

In: Materials Today: Proceedings, Vol. 2, No. Supplement 3, 2015, p. 859-862.

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@article{af72e3b15afe45dca3a6c8e7f39edafc,
title = "A study of hydrogen charging on 10M Ni-Mn-Ga single crystal",
abstract = "The effect of hydrogen charging on twinning stress and surface microstructure was investigated in 10 M Ni-Mn-Ga ferromagnetic shape memory alloy. During hydrogen charging on the bulk sample, cross-like pits formed which gradually evolve into diamond shaped cracks on the surface. The cell boundaries are well visible and there is about 20 μm wide area next to the cell boundary is less cracked. The evolution of the microstructure before and after hydrogen charging is also studied by transmission electron microscope (TEM). There is no visible change in the average twinning stress during hydrogen charging even if the surface is dramatically covered with pits and micro cracks.",
keywords = "Ni-Mn-Ga, Hydrogen charging, TEM",
author = "Yanling Ge and Ilkka Aaltio and Simo-Pekka Hannula",
year = "2015",
doi = "10.1016/j.matpr.2015.07.417",
language = "English",
volume = "2",
pages = "859--862",
journal = "Materials Today: Proceedings",
issn = "2214-7853",
publisher = "Elsevier",
number = "Supplement 3",

}

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TY - JOUR

T1 - A study of hydrogen charging on 10M Ni-Mn-Ga single crystal

AU - Ge, Yanling

AU - Aaltio, Ilkka

AU - Hannula, Simo-Pekka

PY - 2015

Y1 - 2015

N2 - The effect of hydrogen charging on twinning stress and surface microstructure was investigated in 10 M Ni-Mn-Ga ferromagnetic shape memory alloy. During hydrogen charging on the bulk sample, cross-like pits formed which gradually evolve into diamond shaped cracks on the surface. The cell boundaries are well visible and there is about 20 μm wide area next to the cell boundary is less cracked. The evolution of the microstructure before and after hydrogen charging is also studied by transmission electron microscope (TEM). There is no visible change in the average twinning stress during hydrogen charging even if the surface is dramatically covered with pits and micro cracks.

AB - The effect of hydrogen charging on twinning stress and surface microstructure was investigated in 10 M Ni-Mn-Ga ferromagnetic shape memory alloy. During hydrogen charging on the bulk sample, cross-like pits formed which gradually evolve into diamond shaped cracks on the surface. The cell boundaries are well visible and there is about 20 μm wide area next to the cell boundary is less cracked. The evolution of the microstructure before and after hydrogen charging is also studied by transmission electron microscope (TEM). There is no visible change in the average twinning stress during hydrogen charging even if the surface is dramatically covered with pits and micro cracks.

KW - Ni-Mn-Ga

KW - Hydrogen charging

KW - TEM

U2 - 10.1016/j.matpr.2015.07.417

DO - 10.1016/j.matpr.2015.07.417

M3 - Article

VL - 2

SP - 859

EP - 862

JO - Materials Today: Proceedings

JF - Materials Today: Proceedings

SN - 2214-7853

IS - Supplement 3

ER -

ID: 1471849