A.10CrMo910 B.13CrMo44 C.χ19CrMOVNbN11 D.15Mo3
A.化學(xué)腐蝕產(chǎn)生塑性變形 B.流體沖刷產(chǎn)生塑性變形 C.高溫和應(yīng)力的長(zhǎng)期作用,產(chǎn)生塑性變形