It has been discovered that the deformation in the primary creep regime can well described by eqution : - 0 = atm , moreover , the eqution : = a n exp ( - q / rt ) can be used to interpret phenomenally the relationship between the steady - state creep rate and stress , temperature 蠕變的第一階段也就是減速蠕變階段的蠕變變形可用? _ 0 = at ~ m來(lái)描述??梢晕ㄏ蟮亟忉尫€(wěn)態(tài)蠕變速率和蠕變應(yīng)力和溫度之間的關(guān)系。
3 . the two stages of primary creep and steady - state creep of 3d c / sic correspond to the gradual saturation of matrix crack and the opening of these cracks respectively . the transverse crack is the main contributor to the macroscopic creep strain of 3d c / sic , and its opening is controlled by the creep temperature ( 3 ) 3dc sic復(fù)合材料的減速蠕變階段和穩(wěn)態(tài)蠕變階段分別對(duì)應(yīng)著基體裂紋趨于飽和和逐漸張開這兩個(gè)過(guò)程;橫向基體裂紋是3dc sic復(fù)合材料宏觀蠕變應(yīng)變的主要貢獻(xiàn)者,溫度是影響橫向裂紋張開速度的一個(gè)重要因素。