Zn alloy (SFE 7 mJ m(-2)). The no Cu (23 nm) and no Cu alloy (22 nm) were synthesized using in situ consolidation during cryo and room temperature milling. Stacking fault energy of aluminum alloys was correlated with the . The SFE of the Al-Cr alloy is a little bit above the SFE of pure Al, as in the. Metallic Alloys I know that by decreasing SFE makes decreasing climb phenomena. but I don't know the mechanism. do you help me? up to know the all of the.