Multi-hit ballistic damage characterisation of 304 stainless steel plates with finite elements

2014 ◽  
Vol 58 ◽  
pp. 252-264 ◽  
Author(s):  
B.P. Russell
Keyword(s):  
Stainless Steel ◽  
Finite Elements ◽  
Steel Plates ◽  
304 Stainless Steel

scholarly journals Perforation Behavior of 304 Stainless Steel Plates at Various Temperatures

2019 ◽  
Vol 5 (4) ◽  
pp. 416-431 ◽  
Author(s):  
B. Jia ◽  
A. Rusinek ◽  
S. Bahi ◽  
R. Bernier ◽  
R. Pesci ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Plates ◽  
304 Stainless Steel

Study on A-TIG Welding Technology for 12 mm Thick 304 Stainless Steel Plate

2015 ◽  
Vol 817 ◽  
pp. 337-341
Author(s):  
Yao Yong Yi ◽  
Guan Hui Liu ◽  
Yu Peng Zhang ◽  
Zi Yi Luo ◽  
Lei Xu
Keyword(s):  
Stainless Steel ◽  
High Efficiency ◽  
Bond Line ◽  
Tig Welding ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Activating Flux ◽  
Full Penetration ◽  
A Tig Welding ◽  
New Variant

A-TIG welding is a new variant of high-efficiency TIG weld technology, the weld penetration can be improved by using surface activating fluxes. In the present work, 12 mm thick stainless steel plates were welded by A-TIG method utilizing self-developed oxide-based composite activating flux. Results showed that for 12 mm thick stainless steel plates, weld joint of full penetration and one-side welding with back formation and good weld appearance could be achieved by A-TIG welding. Furthermore, compared with traditional TIG welding, the microstructure of A-TIG weld was finer, directivity of dendritic crystals near weld bond line was weaker, and mechanical properties of weld joints was also superior.

Effects of heat treatment on the microstructure and metallurgical properties of the explosively bonded 304 stainless steel—CK45 steel

2016 ◽  
Vol 27 (4) ◽  
pp. 488-506 ◽  
Author(s):  
Mohammadreza Khanzadeh Gharah Shiran ◽  
Seyyed Javad Mohammadi Baygi ◽  
Seyed Rahim Kiahoseyni ◽  
Hamid Bakhtiari ◽  
Mohsen Allah Dadi
Keyword(s):  
Heat Treatment ◽  
Stainless Steel ◽  
Steel Plates ◽  
Standoff Distance ◽  
304 Stainless Steel ◽  
Grain Sizes ◽  
Heat Treated ◽  
Vortex Nature ◽  
Impact Kinetic Energy ◽  
The Impact

In this research, the effects of heat treatment are studied on the microstructure and mechanical properties of the explosive bonding of 304 stainless steel plates and CK45 carbon steel with a constant explosive load and various standoff distances. The samples are heat treated in a furnace for 2-h and 4-h at 250℃ and 350℃. The results imply that by increasing the standoff distance from 4 to 5 mm, the impact kinetic energy increases and severe plastic deformation occurs in the bonding interface. The metallography results indicate the wave-vortex nature of the interface with the increase of standoff distance. In addition, heat treatment for 2 h at 350℃ leads to an increase in the thicknesses of intermetallic compounds in the interface. Also, the hardness decreases from 271 to 171 Vickers, and from 279 to 195 Vickers with 2 h of heat treatment at 350℃ in samples with standoff distances of 4 and 5 mm, respectively. Furthermore, the strengths of the samples decrease from 449 to 371 MPa, and from 510 to 433 MPa, respectively. Hardness and strength changes occur due to changes in the thickness of the intermetallic area and an increase in grain sizes.

Off-Axial, Gas-Jet-Assisted, Laser Cutting of 6.35-mm Thick Stainless Steel

1995 ◽  
Vol 117 (2) ◽  
pp. 272-276 ◽  
Author(s):  
M. J. Hsu ◽  
P. A. Molian
Keyword(s):  
Stainless Steel ◽  
Laser Cutting ◽  
Gas Flow ◽  
Cutting Speed ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Gas Jet ◽  
Process Conditions ◽  
Cut Edge ◽  
Machining Rate

A dual gas-jet, laser-cutting technique involving coaxial and off-axial oxygen gas flows was developed to cut 6.35-mm thick AISI 304 stainless steel plates with a 1.2-kW CO2 gas transport laser at a cutting speed of 12.7 mm/sec (30 in./min). Under identical process conditions, the single, coaxial gas jet could not cut the stainless steel although the cutting speed was reduced to 2.11 mm/sec (5 in./min). Thresholds of off-axial nozzle diameter, gas-impinging angle, oxygen pressure, and other process parameters were determined to obtain clean-cut edge quality (average dross height 0.25 mm). Experimental data coupled with a fluid-dynamics model of gas flow were presented to show the effectiveness of the dual gas-jet, laser-cutting method in achieving the maximum machining rate without deteriorating the quality of cut.

scholarly journals Effect of Notch on Strain Rate Concentration Factor of 304 Stainless Steel Bar

2021 ◽  
Vol 2021 ◽  
pp. 1-8
Author(s):  
Zhengyang Yu ◽  
Bin Zhong ◽  
Yaojie Sun ◽  
Lei Ma
Keyword(s):  
Numerical Simulation ◽  
Stainless Steel ◽  
Finite Elements ◽  
Notch Root ◽  
304 Stainless Steel ◽  
Notch Depth ◽  
Root Radius ◽  
Notch Angle ◽  
Notch Root Radius ◽  
Steel Bar

In this study, the notch effect of different types of 304 stainless steel rod notch is studied because of the problem of difficulty in measuring the notch root strain of 304 rod stainless steel, and the parameters of the annular notch root are analyzed. The notch angle, notch depth, and notch root radius are the main parameters of the stress field affecting the annular notch, and the mathematical expression of the strain rate concentration factor is derived. In order to verify the accuracy of the theory, the mechanical model of 304 stainless steel bar is established by finite element and numerical simulation calculation. The results show that the theoretical and finite elements have a high degree of agreement. When the notch angle increases, both theoretical and finite elements show a downward trend. When the notch depth of 304 stainless steel bar increases, both theoretical and numerical simulations show an increasing trend. The notch root radius of 304 stainless steel bar increases with decreasing numerical simulation.

Mechanicalproperties of 304 stainless steel plates and friction stir welded Al 2219 alloy

2021 ◽  
Author(s):  
Selvakumaran Thunaipragasam ◽  
Gururaj Hatti ◽  
R. Dhanaraj ◽  
R. Giri Prasad ◽  
P. Satheesh Kumar ◽  
...  
Keyword(s):  
Stainless Steel ◽  
Steel Plates ◽  
304 Stainless Steel ◽  
Friction Stir
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