Transition in superelasticity for Ni55−xCoxFe18Ga27 alloys due to strain glass transition D. P. Wang, X. Chen, Z. H. Nie, N. Li, Z. L. Wang, Y. Ren and Y. D. Wang EPL, 98 4 (2012) 46004 Published online: 29 May 2012 DOI: 10.1209/0295-5075/98/46004