free - g.i.
- frequently bunched heats
- fresh lining
- fresh mold surface
- fresh slag
- fresh-water sprays
- Fresnel region
- fretting
- fretting apparatus
- fretting corrosion
- fretting fatigue
- fretting wear
- Fretz-Moon pipe process
- friability
- friable
- friable deposit
- friction
- friction conditions
- friction force
- friction guide
- friction hammer
- friction hardening
- friction in the bite
- friction induced shear stress
- friction material
- friction roll
- friction welding
- friction-board hammer
- friction-roll drop hammer
- frictional constraint
- frictional drag
- frictional flow
- frictional work
- fringe
- fringe crystal
- fringe out
- fringing field
- frit
- fritted
- fritted brick
- fritted hearth bottom