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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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Ti_3Al金属间化合物氢致解理断裂及其机理
, PP. 406-412
Keywords: Ｔｉ_３Ａｌ,金属间化合物,氢致开裂,断裂机理
Abstract:
Ｔｉ－２４Ａｌ－１１Ｎｂ合金在室温下恒载荷动态充氢以及交变载荷动态充氢时，氢通过促进裂纹在滑移面上的解理，促进了裂纹扩展。不连续的氢致解理裂纹优先在α_２相形核，α_２／β相界面是裂纹扩展的有效障碍。氢通过促进裂尖位错的发射、解理微裂纹在无位错区（ＤＦＺ）的形核以及解理裂纹的扩展，导致氢致解理断裂
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