Demonstration of an inverse Hall–Petch relationship in electrodeposited nanocrystalline Ni–W alloys through tensile testing

An inverse Hall–Petch relationship in nanocrystalline metals have been shown by many researchers using nanoindentation techniques. In this study, tensile tests were carried out on dozens of electrodeposited nanocrystalline Ni–W alloys with grain sizes of 20, 12, 8 and 5 nm. The statistically significant data showed that the transition from a classical to an inverse Hall–Petch relationship is an essential characteristic of electrodeposited nanocrystalline Ni–W alloys.