一種鐵基高溫合金的周期蠕變
CYCLIC CREEP STUDY ON AN IRON-BASE SUPERALLOY
- 
                            摘要: 對GH132合金的周期蠕變研究指出,該合金在周期蠕變條件下其變形規律是復雜的,除了彈性應變,塑性應變外,還有滯彈性應變。這種變形規律的特征隨周期應力卸載條件下最小應力的大小而變化。在高的最小應力條件下,可以表現為合金以不同的應變速率分別在高、低應力下交替地進行。Abstract: Cyclic creep tests were conducted in an iron-base superalloy GH132 at 650℃ and constant maximum stress (46kg/mm2) with different minimum stresses(10,23 and 43kg/mm2). Deformation at cyclic creep is complicated. Beside elastic and plastic deformation, an elastic deformation occurs at cyclic creep. Deformation behaviour at cyclic creep depends on stress amplitudes and minimum stresses.
 
            
下載: