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cyclic strain response
相关语句
  相似匹配句对
     CYCLIC STRESS-STRAIN RESPONSE OF COPPER BICRYSTALS
     铜双晶体的循环应力-应变响应
短句来源
     Theoretical Predictions of Cyclic Stress-Strain Response of Polycrystalline Copper
     多晶体循环应力—应变曲线的理论模拟
短句来源
     STRAIN RESPONSE OF CYCLIC HARDENING UNDER FATIGUE LOADING ON SATURATED ROCK
     应力控制疲劳载荷作用下循环硬化的应变响应
短句来源
     The strain of B.N.
     N .
短句来源
     STATISTIC ANALYSIS FOR CYCLIC STRESS-STRAIN
     循环应力一应变特性的统计分析
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The progress of fatigue research for Al-Li alloys is summarized. The behavior of long and short fatigue cracks, the crack initiation of smooth and notched specimens, the cyclic strain response, the overload effect, the fatigue behavior at cryogenic temperatures and corrosion fatigue of Al-Li alloys are discussed. The comparison of behavior between Al-Li alloys and traditional Al alloys 2000 and 7000-series, the influence of heat treatment, the microstructure and chemical composition on fatigue behavior...

The progress of fatigue research for Al-Li alloys is summarized. The behavior of long and short fatigue cracks, the crack initiation of smooth and notched specimens, the cyclic strain response, the overload effect, the fatigue behavior at cryogenic temperatures and corrosion fatigue of Al-Li alloys are discussed. The comparison of behavior between Al-Li alloys and traditional Al alloys 2000 and 7000-series, the influence of heat treatment, the microstructure and chemical composition on fatigue behavior for Al-Li alloys are presented. The mechanism of crack tip shielding is interpreted in detail. The superior growth resistance of long fatigue cracks for Al-Li alloys is considered to be derived primarily from the crack tip shielding. Because the shielding effect is very sensitive to extrinsic condition, so Al-Li alloys show higher short crack effect, higher anisotropy, larger stress ratio effect and more sensitive overload effect.

本文综述了铝锂合金疲劳的研究进展,包括铝锂合金的疲劳长裂纹、短裂纹、裂纹萌生、光滑和缺口疲劳强度、循环应变行为、过载反应、低温疲劳和腐蚀疲劳、铝锂合金与2000和7000系铝合金疲劳性能的对比、热处理工艺、微观结构、合金成分等对铝锂合金疲劳性能的影响等。

The low-cycle fatigue behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk amorphous alloy was investigated in fully reversed stress control at room temperature. Both fully amorphous and partially crystallized specimens show neither cyclic hardening nor softening until final fracture. The fully amorphous alloy has a superior fatigue life than the partially crystallized one. Prom SEM observations of fracture surfaces and out surfaces of the specimens, the mechanism of stable cyclic strain response is explained....

The low-cycle fatigue behavior of Zr41.25Ti13.75Ni10Cu12.5Be22.5 bulk amorphous alloy was investigated in fully reversed stress control at room temperature. Both fully amorphous and partially crystallized specimens show neither cyclic hardening nor softening until final fracture. The fully amorphous alloy has a superior fatigue life than the partially crystallized one. Prom SEM observations of fracture surfaces and out surfaces of the specimens, the mechanism of stable cyclic strain response is explained. The stages of crack initiation, propagation and overload fracture zone are discernable for the two alloys. The crystalline phases in the amorphous matrix behave more as sites of crack initiation or porosity instead of obstacles retarding crack propagation.

研究了室温完全反向应力控制条件下块状非晶合金Zr_(41.25)Ti_(13.75)Ni_(10)Cu_(12.5)Be_(22.5)的低周疲劳行为,结果表明,完全非晶和含晶态相非晶合金均表现为循环稳定直至断裂,完全非晶合金的寿命远高于含晶态相非晶合金。通过试样断裂表面及外表面SEM观察,解释了应变稳定循环产生的机制,两种非晶合金的疲劳断口均可观察到裂纹的萌生、扩展及过载断裂区,含晶态相非晶中的晶态相没有起到阻碍裂纹扩展的作用,而是作为裂纹萌生点或疏松。

 
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