A study on ductility of high strength steel bridge girder

2010 ◽  
pp. 556-556
Author(s):  
H Joo ◽  
S Cha ◽  
H Lee ◽  
B Choi
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Steel Bridge ◽  
Bridge Girder

Corrosion and Degradation of High-Strength Steel Bridge Wire

CORROSION ◽  
2003 ◽  
Vol 59 (6) ◽  
pp. 547-554 ◽  
Author(s):  
Y. Cao ◽  
G. W. Vermaas ◽  
R. Betti ◽  
A. C. West ◽  
P. F. Duby
Keyword(s):  
High Strength Steel ◽  
High Strength ◽  
Steel Bridge

Sherardizing and Characteristic of Zinc Protective Coating on High-Strength Steel Bridge Cable Wires

2010 ◽  
Vol 97-101 ◽  
pp. 1368-1372 ◽  
Author(s):  
Jing Hua Jiang ◽  
Ai Bin Ma ◽  
Xin Du Fan ◽  
Ming Zi Gong ◽  
Liu Yan Zhang
Keyword(s):  
Corrosion Resistance ◽  
High Strength Steel ◽  
Protective Coatings ◽  
Steel Wire ◽  
High Strength ◽  
Steel Bridge ◽  
X Ray Diffraction ◽  
High Carbon ◽  
Bridge Cable

Zinc protective coatings on high carbon SWRH82B-1 steel were sherardized to markedly improve corrosion resistance of the high-strength steel bridge cable wires (SBCW). Sherardizing parameters have been optimized by optical microscopy (OM) /scanning electron microscopy (SEM), X-ray diffraction (XRD) and potentiodynamic polarization tests. The sherardizing coatings are composed of the loose outer layer (§-FeZn13 phase) and the dense inner layer (δ- FeZn7 phase) with higher hardness. Addition of Y2O3 activator slightly increases the corrosion resistance of sherardized steel wire in comparison with CeO2. A thicker coating corresponds to a higher sherardizing temperature or a longer heating duration, but an extra thick coating is unfavorable for thru-microcrack existed in the inner layer. Good quality of sherardized wires ( higher corrosion resistance and longer duration than conditional hot-dip-galvanized one) can be produced with the zinc-rich powder containing 7.5wt.% CeO2 activator and 25wt. % SiO2 filler under 400°Cfor 6h.

COMPARATIVE CHARACTERISTICS OF PHYSICAL AND MECHANICAL PROPERTIES OF COMPOSITE MATERIALS AND HIGH-STRENGTH STEEL 30FGSN2A

2020 ◽  
Author(s):  
I.R. Antypes ◽  
◽  
V.V. Zaitsev ◽  
Keyword(s):  
Composite Materials ◽  
High Strength Steel ◽  
Critical Stress ◽  
Physical And Mechanical Properties ◽  
High Strength ◽  
Aviation Industry ◽  
Specific Strength ◽  
Aircraft Landing ◽  
Carbon Plastics ◽  
Aircraft Landing Gear

Currently, the use of composite materials is increasingly used in various areas of the national economy, including the aviation industry. The materials of this article are devoted to the study of the use of composite materials for the manufacture of aircraft landing gear in comparison with the traditionally used brand of steel. As a result of the work carried out, it was found that the slope made of carbon fiber showed a critical stress twice as high as its design made of 30xgsn2a steel. In addition, carbon plastics are superior to high-strength steel in terms of specific strength, stiffness, and tensile strength.

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