强烈塑性变形： A SPD:Severe Plastic Deformation Plunger 1.0 1.49 Die 2.22 ①④… To △e=0.8 Die Surface treatment Cutting Container B Container A Degreasing Wire brushing Ram B Ram A Roll bonding Stacking D:11* Heating (b) 材料科学与工程学院 16 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 强烈塑性变形： SPD：Severe Plastic Deformation 16
© SPD实用案例 Ti AI W Al-Mg-Li-Zr initial sample T-623K 102 >11809% not broken 10'sd 910% 材料科学与工程学院 17 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 17 Ti Al W SPD 实用案例
⑧ 单晶 Black Sacon Carbide 12 and 30 Orfa advanced stage Jan Czochralski (1885-1953) Beginning of crystal growth seed holder Ar Ar Ar seed crystol neck shoulder fcone single trystal singie crystal srican thermat shield thermal smieid Sio (S0 heoter 司 crucible Si suscepfor Si crucible crucible Ar+Si0+C0 Ar+Si0+C0 Ar+Si0+C0 Ar+Si0+Co crucible shaft 1以T门门于习工儿 18 crutible shaff School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 18 单晶 Jan Czochralski (1885-1953)
图 体缺陷一第二相颗粒 完全共格 存在应变的共格 (a) (b) 半共格 非共格 (c) (d) 材料科学与工程学院 19 School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 19 完全共格 存在应变的共格 半共格 非共格 体缺陷——第二相颗粒
③ 体缺陷—弥散相 High temperature,low stress creep Interaction of dislocation networks with potassium bubbles (M=56,000:1) School of Materials Science and Engineering
材料科学与工程学院 School of Materials Science and Engineering 体缺陷——弥散相 20 Interaction of dislocation networks with potassium bubbles (M = 56,000:1) High temperature, low stress creep