heat treatment mechanical properties 17 microstructure 16 Technology: general issues 9 tensile strength 8 wear 8 History of engineering & technology 7 hardness 7 fatigue 6 numerical simulation 6 additive manufacturing 5 corrosion 5 magnesium alloy 5 microstructures 5 porosity 5 Research & information: general 4 Ti-6Al-4V 4 cement 4 concrete 4 finite element analysis 4 mechanism 4 simulation 4 surface modification 4 3D printing 3 SEM 3 Ti6Al4V alloy 3 aluminium alloy 3 aluminium alloys 3 chemical composition 3 composite materials 3