Influence of neutron irradiation on hardness and fracture strength of the amorphous alloy Ni40Fe6Co20Cr12Mo6B16

Abstract

The influence of neutron (0 = 107n/cm2.s) irradiation on the hardness and fracture strength of the amorphous alloy Ni40Fe6Co20Cr12Mo6B16 is studied at room temperature. There is little influence up to the fluence of 2 x 1012n/cm2, however, hardening is observed at higher fluences. While the hardness continues to increase from the fluence 2 x 1012n/cm2 to 4.3 x 1013n/cm2, the fracture strength attains a peak value at fluence of -1013n/cm2, however, is drastically reduced at higher fluences. The results are discussed in terms of radiation induced defects and consequent formation of clusters like (Fe, Ni)3B. © 1994, Taylor & Francis Group, LLC. All rights reserved.