Microwave plasmas at atmospheric pressures can be utilized for carburization of steel alloys. Due to their high frequencies, microwaves ionize and dissociate molecules with great efficiency and provide carbon for carburization by dissociating hydrocarbons that are introduced in the plasma. Also, conventional carburization techniques are not very energy efficient, as much of the heat generated is not utilized for the heating of the parts. Microwave plasmas are highly energy efficient due to very high coupling of microwaves to the plasma and then transferring of heat to the parts. Since plasma surrounds the part uniformly, heating rates over the part surface are also uniform. Preliminary results are presented for carburization of steel alloy 8620H by atmospheric microwave plasma process using acetylene as the source gas. Possible effects of application of pulsed DC bias to the parts are also discussed.
Microwave Plasma Carburization of Steel Alloys at Atmospheric Pressure
Sae Technical Papers
SAE 2005 World Congress & Exhibition ; 2005
11.04.2005
Aufsatz (Konferenz)
Englisch
Pressure , Hydrocarbons , Alloys , Energy conservation , Steel , Gases , Parts
Microwave plasma carburization of steel alloys at atmospheric pressure
Kraftfahrwesen | 2005
|2005-01-0989 Microwave Plasma Carburization of Steel Alloys at Atmospheric Pressure
British Library Conference Proceedings | 2005
|Braze signature in brazing with atmospheric pressure microwave plasma
Kraftfahrwesen | 2005
|Braze Signature in Brazing With Atmospheric Pressure Microwave Plasma
SAE Technical Papers | 2005
|Microwave Atmospheric-Pressure Sensor
NTRS | 1986
|