The Influence of PWHT on Mechanical Properties of Welded Joint of Alloy800H with Alloy625 Filler Metal
詳細
Welded joint of Alloy800H should be performed PWHT at min. 885 degree C according to the requirement of ASME code. When Alloy625 consumable is used for welding of Incoloy800H, this temperature range of PWHT will be harmful to the weldment of Alloy625, because several phases such as gamma", MC, M23C6 and delta-phase are precipitated at 700~950 degree C.
