1961 Volume 47 Issue 11 Pages 1607-1613
Individual or combined effects of additional elements (N, Cb, Mo, and W) on the hardness as solution-treated, the characteristics of age-hardening, and the rates of age-hardening and softening du to over aging of the Fe-Co-Cr-Ni base heat-resisting alloy were investigated by measurement of hardness.
The excellent properties on age-hardening of LCN-155 alloy were due to the combined effect of nitrogen together with molybdenum and tungsten in addition due to the effect of carbon, and the effect of nitrogen together with columbium was available in the presence of molybdenum and tungsten.
The advantageous effects of such elements on the age-hardening should be presumably due to change of a dispersion state, shape, or transition process of precipitates.
