Results 71 to 80 of about 811,199 (195)
Effect of Enhanced Grain Refinement in Friction Welded SUS316L Alloy [PDF]
Archives of Metallurgy and MaterialsTo investigate the solid state weldability on SUS316L alloy, this work was carried out. Friction welding as a solid state welding was introduced and conducted at a rotation speed of 2,000 rpm and a friction pressure of 25 MPa on tube typed specimens ...
Youngkyu Kim, Kukhyun Song
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Relational Concurrent Refinement: Automata [PDF]
, 2009 Data refinement in a state-based language such as Z is defined using a relational model in terms of the behaviour of abstract programs. Downward and upward simulation conditions form a sound and jointly complete methodology to verify relational data ...
Derrick, John +4 more
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Perspicuity and Granularity in Refinement [PDF]
, 2011 This paper reconsiders refinements which introduce actions on the concrete level which were not present at the abstract level. It draws a distinction between concrete actions which are ''perspicuous'' at the abstract level, and changes of granularity of ...
Eerke Boiten, Boiten, Eerke Albert
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Study on microstructure and refining effect of deformed Al-4.5Er-1Zr-1.5Ti master alloy
Journal of Alloys and Metallurgical SystemsThe microstructure and grain refinement of Al-4.5Er-1Zr-1.5Ti master alloy were analyzed by the refinement experiment, OM, SEM and XRD. The results show that the grain size of pure aluminum is reduced from 14,000μm to 202μm by Al-4.5Er-1Zr-1.5Ti master ...
Zhiguo Lei +5 more
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Feasibility of dispersed phase grain refinement in ceramics.
, 1967 The feasibility of dispersed phase grain refinement in ceramics is assessed. Conditions for grain size stabilisation of normal grain growth are derived using a Zener type analysis for random dispersions and for the case in which all particles are located
Woolfrey, JL
core
Research on surface integrity of GH4169 machined by ultrasonic assisted grinding
Jin'gangshi yu moliao moju gongcheng, 2021 Experiments of GH4169 ultrasonic assisted grinding and conventional grinding were carried out to study the effects of ultrasonic vibration and grinding parameters on microhardness, residual stress and microstructure for the purpose of studying the effect
HAN Lu +4 more
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Materials & DesignUniform fine grain structure is essential for enhancing the mechanical properties of flat-shaped aerospace components at the typical working temperature of 870 °C.
Zong-sheng Xie +6 more
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Grain refinement and mechanical properties of Fe-30Mn-0.11C steel
Results in Physics, 2019 In this work, fully recrystallized ultrafine-grained (UFG) Fe-30Mn-0.11C steel with mean grain size of 1 μm was successfully produced by using traditional cold rolling and annealing process.
J.M. Kang +5 more
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Controlled preparation of a novel GNP@MgO particles and its refinement mechanism in Mg-9Al alloy
Journal of Magnesium and AlloysThe addition of effective nucleating particles in the melt to achieve grain refinement has become the most widely used method for the casting industries.
Shuaihu Wei +5 more
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Strain-Induced Grain Refinement of Cobalt During Surface Mechanical Attrition Treatment
, 2005 The microstructural evolution during surface mechanical attrition treatment of cobalt (a mixture of hexagonal close packed (hep) and face-centered cubic (fcc) phases) was investigated.
Lu K +7 more
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