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Investigations of a nanostructured FeMnSi shape memory alloy produced via severe plastic deformation 下载免费PDF全文
Gheorghe Gurau Carmela Gurau Vedamanickam Sampath Leandru Gheorghe Bujoreanu 《矿物冶金与材料学报》2016,23(11):1315-1322
Low-cost iron-based shape memory alloys (SMAs) show great potential for engineering applications. The developments of new processing techniques have recently enabled the production of nanocrystalline materials with improved properties. These developments have opened avenues for newer applications for SMAs. The influence of severe plastic deformation induced by the high-speed high-pressure torsion (HSHPT) process on the microstructural evolution of an Fe–Mn–Si–Cr alloy was investigated. Transmission electron microscopic analysis of the alloy revealed the existence of nanoscale grains with an abundance of stacking faults. The high density of dislocations characteristic of severe plastic deformation was not observed in this alloy. X-ray diffraction studies revealed the presence of ε-martensite with an HCP crystal structure and γ-phase with an FCC structure. 相似文献
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A special form of spiking neural P systems, called axon P systems, corresponding to the activity of Ranvier nodes of neuron axon, is considered and a class of SN-like P systems where the computation is done along the axon is introduced and their language generative power is investigated. 相似文献
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Francisco J. Romero-Campero Marian Gheorghe Gabriel Ciobanu John M. Aul Mario J. Pérez-Jiménez 《自然科学进展》2007,17(4):375-383
In this paper various molecular chemical interactions are modelled under different computational paradigms. P systems and π-calculus are used to describe intra-cellular reactions like protein-protein interactions and gene regulation control. 相似文献
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Mario J. Pérez-Jiménez 《自然科学进展(英文版)》2007,17(4):375-383
In this paper various molecular chemical interactions are modelled under different computational paradigms. P systems andπ-calculus are used to describe intra-cellular reactions like protein-protein interactions and gene regulation control. 相似文献
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