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With new heat treatment, 3D-printed metals can withstand extreme conditions（图）
热处理 3D打印 金属微观结构 燃气轮机 喷气发动机 叶片
2023/6/6
A new MIT-developed heat treatment transforms the microscopic structure of 3D-printed metals, making the materials stronger and more resilient in extreme thermal environments. The technique could make...
Heat Transfer during the Solidification of Hot Dip Aluminizing Coating
hot dip aluminizing coating model solidification heat transfer
2011/8/4
Hot dip aluminizing is one of the most effective methods of surface protection for steels and is gradually gaining popularity. Although the pulling speed is one of the most important parameters to con...
Effect of Heat Input on the Microstructure and Mechanical Properties of 07MnCrMoVR Weld Joints
07MnCrMoVR heat input microstructure impact toughness
2011/8/4
As a new type of low cracking suscepbility high strength steel, 07MnCrMoVR steel has excellent weldability, with low carbon equivalent and cold cracking susceptibility coefficient. However, there are ...
Effect of Heat Input on the Microstructure and Mechanical Properties of 07MnCrMoVR Weld Joints
07MnCrMoVR heat input microstructure impact toughness
2011/8/4
As a new type of low cracking suscepbility high strength steel, 07MnCrMoVR steel has excellent weldability, with low carbon equivalent and cold cracking susceptibility coefficient. However, there are ...
A numerical study of heat and mass transfer effects on an oscilaltory flow of a viscoelastic fluid with thermal relaxation
Finite difference method Oscillatory flow Heat transfer and Mass transfer
2010/11/25
We have studied numerically effect of heat and mass transfer on an oscillatory flow of a viscoelastic fluid with thermal relaxation. The dimensionless governing equations are solved using an explicit ...
Algebraically explicit analytical solution of three-dimensional hyperbolic heat conduction equation
Hyperbolic heat conduction Relaxation time
2010/11/25
In this paper, the three-dimensional hyperbolic effect subjected to a cosine heat flux boundary condition is carried out. Equations in rectangular coordinates are solved. Analytical solution with meth...
Explicit analytic solution for stagnation flow and heat transfer on a moving plate
Nonlinear differential equations stagnation flow
2010/9/27
In this article, we use an efficient analytical method called homotopy analysis method (HAM) to derive an approximate solution of stagnation flow on a moving solid boundary. Actually, we solved the Na...
Application of Exp/imp finite difference for nonlinear heat transfer fin effect of nonlinearities of fin efficiency
nonlinear heat fin implicit scheme
2010/9/27
This paper deals with the transient analysis of a general nonlinear fin subjected to nonlinear boundary conditions. It aims at finding a simple way for the solution of this relatively complicated prob...
Influence of heat treatment on micro-structure of slurry aluminide coatings type TiAlSi obtained on TiAlCrNb alloy
Thin and thick coatings Aluminides Microstructural stability
2009/12/14
Purpose: Influence of heat treatment on microstructural changes in slurry TiAlSi coating deposited with 12.5% Si concentration on Ti48Al2Cr2Nb intermetallic alloy and investigation of the influence of...
Heat loss optimisation in CNC motors
Resistant forces Open-architecture control Free-running pulse width modulated driver
2009/12/3
Purpose: Heat loss plays very important role in CNC systems, especially in suspension systems with permanent load
that are usually used for testing, detection and automatic cutting, the adjusting of ...
Study of secondary recrystallization in grain-oriented steel treated under dynamical heat treatment conditions
abnormal grain growth Goss texture grain oriented electrical steel
2009/10/23
The present study was made to investigate secondary recrystallization in grain-oriented steels annealed at short time temperature exposures with application of dynamical heating. The investigated GO s...
Theoretical And Experimental Analys Of Plastic Deformation Heat For Pim-Ring Sliding System Under Dry Friction Conditions
Sliding Friction Plastic Deformation Frictional Heat
2009/10/15
In this study, a theoretical model which can ensure the calculation of plastic deformation heat occured at the worn surfaces due to the friction during sliding was established and the validity of the ...
EFFECT OF PRANDTL NUMBER ON HEAT TRANSFER CHARACTERISTICS IN AN AXISYMMETRIC SUDDEN EXPANSION: A NUMERICAL STUDY
turbulence Prandtl number heat transfer
2009/10/14
Using the standard k-e turbulence model, an incompressible, axisymmetric turbulent flow with a sudden expansion was simulated. Effect of Prandtl number on heat transfer characteristics downstream of t...
On the Effectiveness of Uniform Suction and Injection on Steady Rotating Disk Flow in Porous Medium with Heat Transfer
Rotating disk flow Heat Transfer Porous medium Suction or Injection
2009/10/10
The steady flow of an incompressible viscous fluid above an in nite rotating porous disk in a porous medium is studied with heat transfer. A uniform injection or suction is applied through the surface...
The 4th Asian Conference on Heat Treatment and Surface Engineering
4th Asian Conference Heat Treatment Surface Engineering
2009/5/26
The 4th Asian Conference on Heat Treatment and Surface Engineering 27~30 Oct. 2009 · Beijing, China.Organizer is Chinese Heat Treatment Society,Topics include but not limited to:Phase Transformation, ...