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Effect of three dimensional stress state on unstable fracture condition and crack opening level in a new crack growth model

A new model for the analysis of fatigue crack growth in the metal structures was proposed. This model shows a promising capability of explaining various fatigue phenomena. The new crack growth model is further completed by a continuous empirical formula for estimating the value of variable fracture ...

关键词: Marine structures , Crack growth rate , Three dimensional stress state , Fracture toughness , Crack tip stress/strain constraint factor

氢蚀程度对20G钢K_(IC)及△K_(th)的影响

郦建立 , 李晓刚 , 谢根栓 , 李彦 , 姚治铭 , 李劲 , 柯伟

中国腐蚀与防护学报

氢蚀程度对２０Ｇ钢Ｋ_（ＩＣ）及△Ｋ_（ｔｈ）的影响郦建立，李晓刚，谢根栓，李彦，姚治铭，李劲，柯伟（中国科学院金属腐蚀与防护研究所腐蚀与防护国家重点实验室沈阳１１００１５）（抚顺石油学院，抚顺石油三厂）１引言氢腐蚀（ＨＡ）使材料的力学性能和疲劳断裂性能严重恶化，是化学工业、石油化工、煤转化工业临氨...

关键词: null , Fracture toughness , Fatigue threshold , 20G carbon steel

Effect Of Mo And Mo2c On Themicrostructure And Properties Of The Cermets Based On Ti(C,N)

S.Q. Zhou , W. Zhao , W.H. Xiong , Y.N. Zhou , null , null , null , null

金属学报(英文版)

Effect of Mo and Mo2C on the microstructure and properties of Ti(C,N)-based cermets was investigated in this article. The results have indicated that the weight percentage of Mo from 5 to 10 can reduce Ti(C,N) grain diameter and thickness of the rim, and Ti(C,N) grain can be wetted by Ni-Cu-Mo liqui...

关键词: Transverse rupture strength (TRS) , null , null

材料期刊网

Effect of three dimensional stress state on unstable fracture condition and crack opening level in a new crack growth model

氢蚀程度对20G钢K_(IC)及△K_(th)的影响

Effect Of Mo And Mo2c On Themicrostructure And Properties Of The Cermets Based On Ti(C,N)

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