Recent Studies on Void Shrinkage in Metallic Materials Subjected to In Situ Heavy Ion Irradiations. - Niu, T.; Nasim, M.; Annadanam, R. G. S.; Fan, C.; Li, Jin; Shang, Z.; Xue, Y.; El-Azab, A.; Wang, H.; Zhang, X. (JOM: The Journal of The Minerals, Metals & Materials Society (TMS), 2020)