The superelastic behavior of an NiTiHfPd single-crystal shape memory alloy in compression along the  orientation was investigated as a function of temperature. In the range of -30 to 70 degrees C, a perfect superelastic loop with 4.2% transformation strain was attained. In addition, this material exhibited an ultrahigh yield strength of more than 2500 MPa and an exceptional damping capacity of 44 J cm(-3). (C) 2012 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.