Titlebook: Low Cycle Fatigue and Elasto-Plastic Behaviour of Materials; Volume 2 K.-T. Rie Book 1987 Elsevier Applied Science Publishers Ltd 1987 allo

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HAVOC

止痛药

Congregate

The Role of Grain Boundaries in Low Cycle Fatigue at High Temperaturesexperiments designed specifically to investigate the mechanical characteristics of grain boundaries at testing frequencies of <1 Hz. The tests were conducted on high purity Pb, high purity Al and an Al-3% Mg solid solution alloy. For each material, it is shown that the grain boundaries migrate and s

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Cyclic Deformation and Microstructure of Zircaloy-4 Between 300 and 973 Kviour was correlated with the development of characteristic dislocation structure. Tran.mission electron microscopy observations show a well defined cell structure in the region of intermediate temperature while bundles and bands of dislocation spread, respectively, below and above this range. In or

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Effect of Nitrogen Upon the Low-Cycle Fatigue Behaviour of 316 L Stainless Steelst 873 K conditions, is investigated at the 0.08 wt % and 0.25 wt % levels. The study of the 873 K deformation substructure generalizes the room temperature correlation between the nitrogen-induced planar character of the deformation and the increase in fatigue resistance. This correlation suggests t

palpitate

Androgen

Low Cycle Fatigue of a 12 Cr Martensitic Stainless Steel: The Role of Microstructureried out on electropolished specimens. Fatigue resistance is characterized by a cyclic softening and is well described by two Manson-Coffin relationships. Metallographic structure reveals ferrite bands coexisting with the tempered martensite. SEM investigations show that the ferrite bands accommodat

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Fatigue Crack Initiation and Early Propagation in Polycrystalline Coppertly in the scanning electron microscope (SEM) or using plastic replicas. Surface topography of persistent slip bands (PSBs) has been followed. Both crack initiation in PSBs and along grain boundaries have been found. Crack initiation in PSBs within the grain is similar to that observed earlier in si