scholarly journals THE EFFECT OF NANOCARBON MATERIALS STRUCTURES ON THE PERFOMANCES OF EPOXY-BASED PAINT COATING FOR STEEL SURFACES

2018 ◽  
Vol 55 (5B) ◽  
pp. 287
Author(s):  
Phan Thi Thuy Hang
Keyword(s):  
Mechanical Properties ◽  
Corrosion Protection ◽  
Mechanical Performance ◽  
Epoxy Coatings ◽  
Paint Coating ◽  
Nanocarbon Materials ◽  
Steel Surfaces ◽  
Paint Coatings ◽  
Mechanical Properties And Corrosion ◽  
Better Than

This paper reports the effect of the nanocarbon materials addition on the physico-mechanical properties and corrosion protective ability of epoxy based paint coatings for the steel surfaces. In this work the nanotubes and nanosheets (layers) structures of nanocarbon materials were used for the investigation. The properties of received products were measured by the test techniques for paint coating characterization. The results showed that the addition of the nanocarbon materials (only ratio of 0.1 wt%) significantly improved the physico-mechanical performance and corrosion protection ability of epoxy coatings for steel surfaces. However improvement quantity depends on the structure of nanocarbon materials. The obtained results showed that the nanosheets structure of carbons coatings made the physico-mechanical properties of the epoxy coating increased better than those of nanotube structure. 

There is Low Cost Titanium Componentry Today

2013 ◽  
Vol 551 ◽  
pp. 11-15 ◽  
Author(s):  
J.C. Withers ◽  
V. Shapovalov ◽  
R. Storm ◽  
R.O. Loutfy
Keyword(s):  
Mechanical Properties ◽  
Low Cost ◽  
Cost Component ◽  
Automotive Components ◽  
One Step ◽  
Near Net Shape ◽  
Mechanical Properties And Corrosion ◽  
The Cost ◽  
Processing Steps ◽  
Better Than

In spite of titanium’s excellent combinations of lightweight, mechanical properties, and corrosion resistance it has been excluded from many applications because of its high cost in fabricated componentry. The major cost to produce a titanium alloy component is the processing of the sponge into alloy plus the several processing steps for fabricating the final finished component. If low cost titanium is to become a reality, the cost of post sponge processing to final finished components must be dramatically reduced. Processing to convert sponge directly in one step to an alloyed near net shape low cost component has been demonstrated. The mechanical properties are equivalent to better than standard processed wrought titanium. Example, automotive components and other applications that confirm titanium componentry at substantially lower cost than standard processing will be provided.

EXPERIMENTAL RESULTS ON THE SHEAR BEHAVIOUR OF STEEL FIBRE SELF-COMPACTING CONCRETE (SFSCC) BEAMS

2016 ◽  
Vol 78 (11) ◽  
Author(s):  
Juli Asni Lamide ◽  
Roslli Noor Mohamed ◽  
Ahmad Baharuddin Abd Rahman
Keyword(s):  
Mechanical Properties ◽  
Steel Fibre ◽  
Mechanical Performance ◽  
Load Capacity ◽  
Shear Behaviour ◽  
Self Compacting Concrete ◽  
Steel Fibres ◽  
Concrete Mixtures ◽  
Shear Performance ◽  
Better Than

This paper presents an experimental test program that was carried out to investigate the shear performance of steel fibre self-compacting concrete (SFSCC) beams. In this paper, the mechanical performance of results from all mixtures used to cast normal concrete (NC), self-compacting concrete (SCC) and steel fibre self-compacting concrete (SFSCC) were also investigated. In total, 27 cubes, 9 cylinders, 9 prisms and 9 beams were prepared for the assessment of mechanical properties of three different mixtures. Four beams (125 mm x 250 mm x 2200 mm) were tested and cast using three different concrete mixtures, having two different spacing of stirrups as a result of 50% reduction of the stirrups amount. Three beams with different mixtures having similar stirrups spacing 125mm while the fourth beam with SFSCC mixes having 250mm stirrups spacing. The results show that the mechanical properties were positively affected with steel fibres inclusion. The addition of steel fibres showed an increment up to 40% in the shear load capacity for B-SFSCC125 compared to B-NC125 and B-SCC125.  In addition, the crack pattern of B-SFSCC was found better than B-NC and B-SCC.   

Basalt Fiber Reinforced Concrete

2011 ◽  
Vol 194-196 ◽  
pp. 1103-1108 ◽  
Author(s):  
Yong Xin Yang ◽  
Jie Lian
Keyword(s):  
Mechanical Properties ◽  
Reinforced Concrete ◽  
Water Solubility ◽  
Mechanical Performance ◽  
Basalt Fiber ◽  
Plain Concrete ◽  
Fiber Reinforced Concrete ◽  
Fiber Reinforced ◽  
Mechanical Performances ◽  
Better Than

In this paper, mechanical performances of 480 specimens are tested and influences of basalt fiber ratio, slenderness, soakage material are studied. Results indicate that mechanical properties of BFRC are better than plain concrete. It can be found that the best mechanical performance may be get when the basalt fiber soaked by water-solubility material and its ratio at 8.4 to 14 kg per square meter as well as slenderness at 600 to 800.

scholarly journals IMPACT OF NANOSIZED SILICA ON THE PHYSICO-MECHANICAL PROPERTIES AND CORROSION PROTECTION OF CONCRETE

2019 ◽  
Vol 30 (1) ◽  
pp. 55-66
Author(s):  
Elsayed Elnaggar ◽  
Tarek Elsokkary ◽  
Mostafa Shohide ◽  
Basil El - Sabbagh
Keyword(s):  
Mechanical Properties ◽  
Corrosion Protection ◽  
Mechanical Properties And Corrosion ◽  
Nanosized Silica

scholarly journals Laser-induced graphitization of polydopamine leads to enhanced mechanical performance while preserving multifunctionality

2020 ◽  
Vol 11 (1) ◽  
Author(s):  
Kyueui Lee ◽  
Minok Park ◽  
Katerina G. Malollari ◽  
Jisoo Shin ◽  
Sally M. Winkler ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Diode Laser ◽  
Laser Annealing ◽  
Mechanical Performance ◽  
Conformal Coating ◽  
Inorganic Substrates ◽  
High Roughness ◽  
Functional Versatility ◽  
Blue Diode Laser ◽  
Better Than

Abstract Polydopamine (PDA) is a simple and versatile conformal coating material that has been proposed for a variety of uses; however in practice its performance is often hindered by poor mechanical properties and high roughness. Here, we show that blue-diode laser annealing dramatically improves mechanical performance and reduces roughness of PDA coatings. Laser-annealed PDA (LAPDA) was shown to be >100-fold more scratch resistant than pristine PDA and even better than hard inorganic substrates, which we attribute to partial graphitization and covalent coupling between PDA subunits during annealing. Moreover, laser annealing provides these benefits while preserving other attractive properties of PDA, as demonstrated by the superior biofouling resistance of antifouling polymer-grafted LAPDA compared to PDA modified with the same polymer. Our work suggests that laser annealing may allow the use of PDA in mechanically demanding applications previously considered inaccessible, without sacrificing the functional versatility that is so characteristic of PDA.

Influence of Grain Size on Corrosion Resistance of a HSLA Steel

2012 ◽  
Vol 557-559 ◽  
pp. 143-146 ◽  
Author(s):  
Yan Tang Chen ◽  
Kai Guang Zhang
Keyword(s):  
Mechanical Properties ◽  
Grain Size ◽  
Corrosion Resistance ◽  
Mechanical Performance ◽  
Hsla Steel ◽  
High Strength ◽  
Corrosion Resistant ◽  
Hsla Steels ◽  
Mechanical Properties And Corrosion ◽  
Mn Steel

The mechanical performance, workability, weldability and corrosion resistance of structural high strength low alloy (HSLA) steels used in offshore engineering have been generally required. The effect of grain size on the corrosion resistant performance of a C-Mn structural steel has been investigated with stress on hunting a appropriate grain size to balance mechanical properties and corrosion resistant performance. The results showed that the C-Mn steel with grain size in 10～25μm scope provided expected mechanical properties and corrosion resistance.

Effect of Tempering Process on Structure and Properties of Super Martensitic Stainless Steel

2012 ◽  
Vol 581-582 ◽  
pp. 1023-1026 ◽  
Author(s):  
Hu Dai Sun ◽  
Kun Yu Zhao ◽  
Jia Qun Rui ◽  
Wen Jiang ◽  
Xiao Chen Han ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Corrosion Resistance ◽  
Treatment Process ◽  
Martensitic Stainless Steel ◽  
Volume Fraction ◽  
Tempered Martensite ◽  
Super Martensitic Stainless Steel ◽  
Mechanical Properties And Corrosion ◽  
Better Than ◽  
Tempering Process

Two types of super martensitic stainless steels (Cr13 and Cr15) were designed. The effect of tempering process on their microstructure, mechanical properties and corrosion resistance was studied. The results showed that the main microstructure of tested steels was tempered martensite and a small number of reversed austenite when specimens were tempered in temperature range of 550-750°C. The variation of mechanical properties corresponded to the austenite volume fraction well. Both the two types of steels displayed a favorable comprehensive mechanical properties after tempering at 650°C, their product of strength and elongation reached to 18.44GPa•% and 18.44 GPa•% respectively. With the best heat treatment process,tempered at 650°C after quenching at 1050°C,the corrosion resistance of 2# steel is more better than 1# steel.

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