... N08028) and FM 625 (UNS 06625). Welding weldments HAZ waste incineration sulphidation alloy 45 TM UNS N06045 alloy 625 UNS N06625 Background Incineration and thermal treatment of waste streams is an effective way to reduce or eliminate municipal, industrial, and hazardous waste. Often these waste...

... in oxidizing, carburizing and sulphidizing environments. Even in multi-component environments like those of waste incineration, coal gasification and metal dusting generating atmospheres the alloy behaves excellent. This paper provides corrosion data obtained in laboratory tests and industrial exposure tests...

...° to 280°C, repeated every 6 min). Degradation of the alloys involved the development of oxide scales in the early stages, followed by breakdown and growth of sulphide-rich scales. Thermal cycling involving conventional cool-to-room-temperature cycles generally resulted in increases in the rates...

... of the gas. TABLE 3 COMPOSITION OF CORROSIVE GAS ATMOSPHERES No. Expected corrosion attack by Gas composition log Po2 Test temperature in °C 1 Oxidation air - 1 1000-1300 2 Carburization CH₄/H₂; a_c=0.8 -24 1100 3 Sulphidation (1) 1..10...

... of the tubes facing the flame radiation was related to a combination of carburization, sulphidation and temperature. The flame in this plant is very large due to the high asphaltene content of the fuel oil, and to the upward tilt of the burners (required to fullfill steam temperature specifications); both...