In-situ TEM straining of tetragonal martensite of Ni-Mn-Ga alloy Yanling Ge, Niva Zárubová, Zdeněk Dlabáček, Ilkka Aaltio, Outi Söderberg and Simo-Pekka Hannula Published online: 01 September 2009 DOI: 10.1051/esomat/200904007