... 183reciprocating engine 1–5advantages and disadvantages 5see also diesel engines; four-stroke engines; two-stroke engines recovery 171–3recrystallization 171–3reduction 232–4refiningeffect on bearing ... 73, 74hard facing 143 , 144 hardening 290–1age hardening see age hardeninggrain size reduction hardening 195–7, 290,291induction hardening 191–4, 295precipitation hardening 144 –5, 194, 290–1quench ... 262 in- situ reactive combustion synthesis 146 inclusions, nonmetallic 156, 195–7, 215, 217–18, 279Inconel 713C alloy 250, 251, 252Inconel 751 alloy 143 –4indirect injection (IDI) engines 4induction...