Microstructure Evolution and Mechanical Response of Nanolaminate Composites Irradiated with Helium at Elevated Temperatures Academic Article uri icon

abstract

  • © 2017, The Minerals, Metals & Materials Society. We summarize recent work on helium (He) interaction with various heterophase boundaries under high temperature irradiation. We categorize the ion-affected material beneath the He-implanted surface into three regions of depth, based on the He/vacancy ratio. The differing defect structures in these three regions lead to the distinct temperature sensitivity of He-induced microstructure evolution. The effect of He bubbles or voids on material mechanical performance is explored. Overall design guidelines for developing materials where He-induced damage can be mitigated in materials are discussed.

author list (cited authors)

  • Li, N., Demkowicz, M. J., & Mara, N. A.

citation count

  • 9

publication date

  • September 2017

published in

  • JOM  Journal