搜索结果: 1-15 共查到“材料科学 grain”相关记录19条 . 查询时间(0.151 秒)
A model for grain growth based on the novel description of dendrite shape
Solidification Process Application of Information Technology to the Foundry Industry
2011/3/11
We use novel description of dendritic shape in the micro solid phase growth model. The model describes evolution of both primary solid solution dendrite and eutectic that forms between arms and grains...
Mechanical properties of ultra-fine grain titanium
Mechanical properties ultra-fine titanium
2010/8/12
It is required that a material for dental implants is bio compatible, it must not be toxic and it may not cause allergic reactions [1]. It must have high ultimate strength Rm and yield value Rp0,2 at ...
Increase of efficiency of the ECAP technology at grain refinement of the alloy AlMn1Cu
ECAP process Mathematical simulation Channel geometry
2009/12/2
Purpose: The foundation of the resolved problem consists of verification of influence of temperature and also
geometry of the ECAP tool on obtaining of required amount of deformation which substantia...
The influence of austenitization on grain size and mechanical properties of regenerative G21CrMoV4–6 cast steel
Metallic alloys Mechanical properties Quantitative metallography
2009/12/2
Purpose: Influence of austenitiziation parameters (temperature and time) on grain size and mechanical properties
of low alloy cast steel have been investigated.
Design/methodology/approach: The grai...
Grain refinement in AZ31 alloy processed by equal channel angular pressing
AZ31 magnesium alloys Equal channel angular processing Grain refinement Microstructure
2010/8/16
Magnesium alloys, as a one of the lightest structural materials known as an energy-saving “green materials”, are increasingly used in many industries, particularly in automotive, electronics and aeros...
The influence of alloying elements in aluminium on the grain refinement with ALTI5B1
aluminium casting solidification
2009/10/23
This work deals with the influence of alloying elements in aluminium on the grain refinement with various additions of AlTi5B1. Grain-refinement tests were made at a cooling rate of 15 °C/s. The resul...
Possibility of determining steel grain size using ultrasonic waves
steel microstructure ultrasonic wave
2009/10/23
Properties of steel depend also on its internal structure. In practice, one can distinguish between primary structure (obtained during solidification) and secondary structure (being a result of the γ ...
Grain Coarsening Effect of Chromium and Iron in Au-Ag-Cu Alloys
Grain Coarsening Chromium Iron Au-Ag-Cu Alloys
2009/7/30
Grain Coarsening Effect of Chromium and Iron in Au-Ag-Cu Alloys.
Grain Size of Gold and Gold Alloys.
Grain-Refined Recrystallised 14-Carat Gold Alloy.
Investigation of Deformation at the Grain Scale in Polycrystalline Materials by Coupling Digital Image Correlation and Digital Microscopy
Polycrystalline Materials Digital Image Correlation Digital Microscopy
2015/3/30
The purpose of this paper is to present an approach for the investigation of in-plane strain distribution at the grain scale in polycrystalline materials. The technique is developed by coupling digita...
A full diffusion model of the graphite eutectic grain growth in liquid cast iron under non-equilibrium conditions
solidification process modeling cast iron diffusion
2011/3/29
An extension of the full diffusion 1-D model developed by Tanzili & Heckel has been presented which now allows for both temperature variations (responsible for an equilibrium interface concentration o...
A full diffusion model of the graphite eutectic grain growth in liquid cast iron under non-equilibrium conditions
solidification process modeling cast iron diffusion
2011/3/29
An extension of the full diffusion 1-D model developed by Tanzili & Heckel has been presented which now allows for both temperature variations (responsible for an equilibrium interface concentration o...
The effects of boron impurity atoms on nickel Σ 5 (012) grain boundary by first principles calculations
Ab-initio calculation Stress corrosion cracking Tensile test
2010/2/4
Purpose: Impurity atoms in the grain boundary can be responsible for embrittlement or they can strengthen a material. In this work, we have modeled the effect of B impurity on Σ 5 (012) symmetrical ti...
3D physical modeling of anisotropic grain growth at high temperature in local strong magnetic force field
diffusion annealing ferromagnetic anisotropy magneto science
2010/10/12
A new mechanism based on the effect of local magnetic forces on diffusing ions around a
growing ferromagnetic precipitate is proposed. A 3D simulation based only on physical
parameters is undertaken...