Laser pressure welding of galvanized steel and pure aluminum

2008 ◽  
Author(s):  
Koji Nishimoto ◽  
Yoshihiro Okumoto ◽  
Tomoki Harano ◽  
Ken Atagi ◽  
Hiroo Fujii ◽  
...  
Keyword(s):  
Pure Aluminum ◽  
Galvanized Steel ◽  
Pressure Welding

Research on Cold-Rolled Bimetal of High-Tin Aluminum Alloy and Steel

2012 ◽  
Vol 217-219 ◽  
pp. 395-399
Author(s):  
Guo Ming Cui ◽  
Xing Xia Li ◽  
Jian Min Zeng
Keyword(s):  
Aluminum Alloy ◽  
Cold Rolling ◽  
Bonding Strength ◽  
Pure Aluminum ◽  
Bonding Interface ◽  
Recrystallization Annealing ◽  
Bonding Mechanism ◽  
Pressure Welding ◽  
Annealing State ◽  
Cold Pressure

Bimetal of high-tin aluminum alloy and steel was fabricated by cold-rolling process; microstructure, bonding strength and bonding mechanism for bonding interface of the bimetal were investigated under cold-rolling and recrystallization annealing state, respectively. Experimental results indicate that tin phase of bimetal in cold-rolling state shows a belt type distribution, however, it, in recrystallization annealing state, is uniformly distributed just like some “isolated islands”. A well bonding interface, between layers of high–tin aluminum alloy and pure aluminum, can be obtained, and it is difficult to distinguish one layer from the other; but the interface, between layers of low-carbon steel back and pure aluminum, is clear and uneven. And meanwhile, bonding mechanism of bimetal interface, in cold-rolling state, is cold pressure welding and mechanical occluding, But it, in recrystallization annealing state, is cold pressure welding, mechanical occluding, and metallurgic bonding. After recrystallization annealing, at 350°C for 2h,the bonding strength of bimetal approaches to 92.4MPa, which is about 26% higher than that of cold-rolling state.

Laser pressure welding of Zn-coated steel and pure aluminum

2007 ◽  
Author(s):  
Koji Nishimoto ◽  
Yoshihiro Okumoto ◽  
Tomoki Harano ◽  
Ken Atagi ◽  
Hiroo Fujii ◽  
...  
Keyword(s):  
Pure Aluminum ◽  
Coated Steel ◽  
Pressure Welding

Microstructure evolution during laser pressure welding of pure aluminum

2020 ◽  
Vol 260 ◽  
pp. 126931
Author(s):  
Jingquan Zhang ◽  
Ting Huang ◽  
Sergey Mironov ◽  
Qiang Wu ◽  
Qingwei Zhang ◽  
...  
Keyword(s):  
Microstructure Evolution ◽  
Pure Aluminum ◽  
Pressure Welding

scholarly journals Micro Observation of Dissimilar Joint Interface between Low Carbon Steel and Pure Aluminum Produced by Laser Pressure Welding

2007 ◽  
Vol 25 (3) ◽  
pp. 436-442 ◽  
Author(s):  
Koji NISHIMOTO ◽  
Yoshihiro OKUMOTO ◽  
Tomoki HARANO ◽  
Ken ATAGI ◽  
Hiroo FUJII ◽  
...  
Keyword(s):  
Carbon Steel ◽  
Pure Aluminum ◽  
Low Carbon Steel ◽  
Dissimilar Joint ◽  
Joint Interface ◽  
Low Carbon ◽  
Pressure Welding

Techniques for Transmission Electron Microscopy of Fiber-Matrix Interfaces in Aluminum Alloy-Boron Composites by Ion Erosio

1971 ◽  
Vol 29 ◽  
pp. 204-205
Author(s):  
G. G. Shaw
Keyword(s):  
Electron Microscopy ◽  
Transmission Electron Microscopy ◽  
Aluminum Alloy ◽  
Electron Beam ◽  
Pure Aluminum ◽  
Ion Milling ◽  
Transmission Electron ◽  
Fiber Matrix ◽  
Ion Erosion ◽  
Row Of Fibers

The morphology and composition of the fiber-matrix interface can best be studied by transmission electron microscopy and electron diffraction. For some composites satisfactory samples can be prepared by electropolishing. For others such as aluminum alloy-boron composites ion erosion is necessary.When one wishes to examine a specimen with the electron beam perpendicular to the fiber, preparation is as follows: A 1/8 in. disk is cut from the sample with a cylindrical tool by spark machining. Thin slices, 5 mils thick, containing one row of fibers, are then, spark-machined from the disk. After spark machining, the slice is carefully polished with diamond paste until the row of fibers is exposed on each side, as shown in Figure 1.In the case where examination is desired with the electron beam parallel to the fiber, preparation is as follows: Experimental composites are usually 50 mils or less in thickness so an auxiliary holder is necessary during ion milling and for easy transfer to the electron microscope. This holder is pure aluminum sheet, 3 mils thick.

Discussion on “Pressure welding light alloys” at the London Section of the Institution

1949 ◽  
Vol 28 (9) ◽  
pp. 472
Author(s):  
Hill ◽  
Tylecote ◽  
Maybury ◽  
Ridpath ◽  
Ogden ◽  
...  
Keyword(s):  
Pressure Welding ◽  
Light Alloys

The Microhardness and Microstructural Changes of Mechanically Affected Zone by Cold Pressure Welding in Aluminum Rod

2014 ◽  
Vol 52 (9) ◽  
pp. 721-729
Author(s):  
Seul Gi Hwang ◽  
Jeong Hyun Jo ◽  
Shang shu Kim ◽  
Young ho Lee ◽  
Jae Kwan Ku
Keyword(s):  
Pressure Welding ◽  
Microstructural Changes ◽  
Cold Pressure

The mathematical modelling of corrosion in hot dip galvanized steel reinforced concrete

2011 ◽  
Vol 2 (1) ◽  
pp. 1-12
Author(s):  
A. Hegyi ◽  
H. Vermeşan ◽  
V. Rus
Keyword(s):  
Mathematical Model ◽  
Reinforced Concrete ◽  
Numerical Model ◽  
Equation System ◽  
Galvanized Steel ◽  
Steel Reinforced Concrete ◽  
Numeric Model ◽  
Physical And Mathematical Models ◽  
Physical Phenomena ◽  
The Mathematical Model

Abstract In this paper we wish to present the numerical model elaborated in order to simulate some physical phenomena that influence the general deterioration of steel, whether hot dip galvanized or not, in reinforced concrete. We describe the physical and mathematical models, establishing the corresponding equation system, the initial and boundary conditions. We have also presented the numeric model associated to the mathematical model and the numeric methods of discretization and solution of the differential equations system that describes the mathematical model.

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