
Research Square (Research Square), Journal Year: 2023, Volume and Issue: unknown
Published: Aug. 28, 2023
Abstract Direct correlations were established between basic surface integrity (SI) characteristics (roughness, microhardness, residual stresses) obtained as a result of cold working (SCW) and bending fatigue limit chromium-nickel austenitic stainless steels (CNASS). The results experimental tests optimization the SCW process, implemented via hardening diamond burnishing (DB), are presented. When requirement for corresponding component is high limit, information will help researcher to find inverse correlation SI finishing so that when process implementing by another method, same can be achieved. Five roughness parameters functionally significant indicators behavior, axial hoop stresses form vector objective functions. governing factors force number passes. was accelerated Locati’s method. models planned experiment regression analyses. eliminating variables in pairs models. change trends microhardness found identical, i.e., CNASS controlled inexpensively measured such microhardness. In other words, any static coldworking optimized without carrying out choosing these functions seeking compromise optimal solution simultaneously achieves values skewness low value parameter Ra. Given direct maximizes while satisfying particular requirements. multi-objective performed comparisons made prove effectiveness proposed approach.
Language: Английский