FACTORS ENHANCING THE MECHANICAL STRENGTH OF NICKEL

Abstract

Nickel’s mechanical properties—yield strength, tensile strength, and creep resistance—are enhanced significantly by specific alloying and processing strategies. This article investigates primary strengthening mechanisms in nickel and nickel‑based alloys: solid‑solution strengthening, precipitation hardening, grain boundary hardening, and work hardening. Drawing on metallurgical theory and experimental studies, we analyze how elements such as chromium (Cr), molybdenum (Mo), titanium (Ti), aluminum (Al), niobium (Nb), cobalt (Co), manganese (Mn), and rare earths affect mechanical performance.