نتایج جستجو برای: cold rolled martensite
تعداد نتایج: 111839 فیلتر نتایج به سال:
Metal matrix nanocomposites (MMNCs) reinforced by carbon nanotubes (CNTs) are good candidates to produce structural components in the mobility industry, given their unique properties. The manufacture of these can involve plastic deformation. Therefore, it is crucial understand whether reinforcement influence deformation behaviour nanocomposites. Thus, this work aims study MMNCs, importance and ...
During continuous heating of a cold rolled low carbon (LC) steel a dilatometric anomaly has been detected previous to the well known ferrite-to-austenite transformation. This anomaly is due to the texture change and/or the dislocation annihilation that accompany the recrystallization process.
Cold-rolled Inconel 718 with δ phase dispersion distribution was prepared and exhibited excellent superplasticity at 950°C a strain rate of 6 × 10−4 ~4 10−3 s−1. The elongation to failure 561% obtained 1 Superplastic deformation accelerates the recrystallization cold-rolled deformed microstructure, thus improving grain uniformity. dispersed promotes nucleation recrystallized grains pin boundari...
The correlation between microstructure, crystallographic orientation and grain boundaries characteristics of an austenitic high manganese steel was systematically investigated. as-received cold-rolled specimens with 50% 70% reduction were analyzed using Scanning Electron Microscopy (SEM), Back-Scattered Diffraction (EBSD) X-ray diffraction techniques. A significant increase in the fraction low-...
The effect of thermos-mechanical processing and thermal treatments on the microstructure a single phase fcc-based Al5Co15Cr30Fe25Ni25 high entropy alloy is evaluated in this study. As-cast ingots were thermo-mechanically processed following different routes involving forging, cold rolling, warm rolling or hot rolling. In addition, microstructural evolution highly deformed rolled sheets with ann...
Deformation behaviors during cold rolling and static recrystallization upon subsequent annealing of an extruded WE43 alloys with different initial textures were investigated in this study. Three types differently textured labeled as samples I, II III. The results showed that multiple twinning modes basal slip dominated the deformation rolling. Cold-rolled sample I activated larger number double...
It has recently been shown that Severe Plastic Deformation (SPD) techniques could be used to obtain nanostructured metal hydrides with enhanced hydrogen sorption properties. In this paper we review the different SPD techniques used on metal hydrides and present some specific cases of the effect of cold rolling on the hydrogen storage properties and crystal structure of various types of metal hy...
Deformation behavior and microstructure evolution of NiTiCu shape memory alloy (SMA), which possesses martensite phase at room temperature, were investigated based on a uniaxial compression test at the temperatures of 700~1000 ◦C and at the strain rates of 0.0005~0.5 s−1. The constitutive equation of NiTiCu SMA was established in order to describe the flow characteristic of NiTiCu SMA, which is...
The effects of deep rolling parameters, particularly, work speed and cooling conditions (dry cryogenic) on the surface integrity AISI 304L machined samples their further impact uniform localized corrosion behavior in chloride environment were experimentally investigated this work. electrochemical rolled was assessed using cyclic potentiodynamic polarization tests synthetic seawater. It found th...
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