interatomic spacing x R=8.3144J/molK,k=8.6210-5eV/K=1.38-10-23J/K,NL=6.023-1023 material constants for aluminium G=27-10N/m2,a=4.04ATs=660C,p=2.7g/cm3,A=27.0gmol,v-0.34 YSFE=18.10-2J/m2,YKG-0.6J/m2 material constants for copper: G=48.109N/m2,a=3.61A,Ts=1083C,p=8.7g/cm3,A=63.5gmol,v=0.35 YSFE-5.10-2J/m2.YKG-0.5J/m2,YOb=1J/m2interatomic spacing x interaction energy E(x) _________________________________________________________________________ R=8.3144 J/molK, k=8.62⋅10-5eV/K = 1.38⋅10-23J/K, NL=6.023⋅1023 material constants for aluminium: G=27⋅109N/m2, a=4.04Å, TS=660°C, ρ=2.7g/cm3, A=27.0g/mol, ν=0.34 γSFE=18⋅10-2J/m2, γKG=0.6J/m2 material constants for copper: G=48⋅109 N/m2, a=3.61Å, TS=1083°C, ρ=8.7g/cm3, A=63.5g/mol, ν=0.35 γSFE=5⋅10-2J/m2, γKG=0.5J/m2, γOb=1J/m2