A novel seawater and sea sand concrete filled FRP-carbon steel composite tube column: Concept and behaviour

2020 ◽  
Vol 246 ◽  
pp. 112421 ◽  
Author(s):  
Yirui Zhang ◽  
Yang Wei ◽  
Jiawen Bai ◽  
Gang Wu ◽  
Zhiqiang Dong
Keyword(s):  
Carbon Steel ◽  
Composite Tube ◽  
Sea Sand ◽  
Steel Composite

Compressive performance of high-strength seawater and sea sand concrete-filled circular FRP-steel composite tube columns

2021 ◽  
Vol 240 ◽  
pp. 112357
Author(s):  
Yang Wei ◽  
Jiawen Bai ◽  
Yirui Zhang ◽  
Kunting Miao ◽  
Kaiqi Zheng
Keyword(s):  
High Strength ◽  
Composite Tube ◽  
Sea Sand ◽  
Compressive Performance ◽  
Steel Composite

Study of internal pressure strength of the titanium-steel composite tube based on yield and shear failure mechanisms

2019 ◽  
Vol 44 (5) ◽  
pp. 2997-3012 ◽  
Author(s):  
Deng Kuanhai ◽  
Li Jialian ◽  
Li Bin ◽  
Pen Lin ◽  
Liu Wanying ◽  
...  
Keyword(s):  
Internal Pressure ◽  
Shear Failure ◽  
Failure Mechanisms ◽  
Composite Tube ◽  
Steel Composite

scholarly journals Study on the Bonding Mechanism of Copper-Low Carbon Steel for Casting Compounding Process

Metals ◽  
2021 ◽  
Vol 11 (11) ◽  
pp. 1818
Author(s):  
Huirong Li ◽  
Yueying He ◽  
Haichao Zhang ◽  
Tao Ma ◽  
Yungang Li
Keyword(s):  
Composite Materials ◽  
Carbon Steel ◽  
Transition Layer ◽  
Great Influence ◽  
Low Carbon Steel ◽  
Molten Copper ◽  
Bonding Mechanism ◽  
Low Carbon ◽  
Compound Process ◽  
Steel Composite

The casting compounding process for copper-steel composite material has broad prospects of application, but due to the lack of supporting theories (especially the bonding mechanism of copper-steel at high temperatures), it is developing slowly. In this research, copper-steel composite materials for different casting temperatures have been prepared by the casting compound process. The results show that, for the casting compound process, the stable copper-steel transition layer can be formed in a short time, and the bonding of copper and low carbon steel is the result of both the diffusion of Cu in low carbon steel and the dissolution of Fe in molten copper. The diffusion coefficient of Cu in the low carbon steel is mainly concentrated in the range of 4.0 × 10−15–8.0 × 10−14 m2/s. However, for casting compound process of copper-steel, as the temperature rises the thickness of the copper-steel transition layer gradually decreases, while the Fe content in the copper layer gradually increases. At the same time, the analysis of the glow discharge results shows that, during the solid-liquid composite process of copper-steel, the element C in steel has a great influence. As the temperature rises, the segregation of C intensifies seriously; the peak of the C content moves toward the copper side and its value is gradually increases. The segregation of C would reduce the melting point of the steel and cause irregular fluctuations of the diffusion of Cu in low carbon steel. Therefore, a relatively lower molten copper temperature is more conducive to the preparation of copper-steel composite materials.

Effects of Aging Treatment on Performance of Explosive Welded Beryllium-Bronze/Carbon-Steel Composite Plate

2011 ◽  
Vol 117-119 ◽  
pp. 862-865 ◽  
Author(s):  
Guo Shang Zhang ◽  
Shu Zeng Hou ◽  
Shi Zhong Wei ◽  
Ji Wen Li ◽  
Liu Jie Xu
Keyword(s):  
Shear Strength ◽  
Carbon Steel ◽  
Bond Strength ◽  
Composite Plate ◽  
Treatment Process ◽  
Aging Treatment ◽  
Beryllium Bronze ◽  
Cold Bending ◽  
Steel Composite ◽  
Effects Of Aging

This paper dealt with how the aging time and temperature affected the hardness of beryllium bronze layer in the explosive welded beryllium-bronze/carbon-steel composite plate. The properties of shearing, bonding, cold bending and microhardness were studied in term of the composite plate, including the aging and nonaging. The optimum aging treatment process of the composite plate is aging temperature at 320°C for 3 hours. And the results show that: aging treatment has no obvious effects on the shear strength but sharply decreases bond strength of the composite plate. And aging treatment to a certain extent reduce the cold bending prroperty. After aging treatment, the microhardness value and distribution of carbon steel was no obvious change, and the microhardness of beryllium bronze sharply raised and smoothly distributed.

Study on Corrosion Resistance of Carbon Steel/Stainless Steel Composite Pipe

2013 ◽  
Vol 423-426 ◽  
pp. 212-218
Author(s):  
Shu Yun Gou ◽  
Yu He Li
Keyword(s):  
Mechanical Properties ◽  
Stainless Steel ◽  
Corrosion Resistance ◽  
Carbon Steel ◽  
Alloy Element ◽  
Chemical Compositions ◽  
Distribution Maps ◽  
Compound Casting ◽  
Composite Pipe ◽  
Steel Composite

The carbon steel/stainless steel composite pipe was prepared by centrifugal compound casting-hot extrusion-cold rolling. SEM was employed in detecting the microstructure and alloy element distribution maps in stainless steel of composite pipe. The mechanical properties were measured through tensile test. The corrosion resistance of the composite pipe was detected in acid, alkali and salt solutions. The results show that the outer and inner layers are integrated with good metallurgical behavior, and the mechanical properties of the composite pipe are satisfactory, the chemical compositions are well-distributed. The grain-boundary corrosion test is qualified. This composite pipe has better corrosion resistance in 10%H2SO4and 10%NaOH solution than in FeCl3solution at room temperature.

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