The effect of a remelting treatment scanning strategy on the surface morphology, defect reduction mechanism, and mechanical properties of a selective laser-melted Al-based alloy

2022 ◽  
Author(s):  
Jieren Guan ◽  
Qiuping Wang
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Reduction Mechanism ◽  
Scanning Strategy ◽  
Defect Reduction

Electrospinning/Spray: The Interaction between Graphene Nanosheets and Different Nanofibers

2020 ◽  
Vol 841 ◽  
pp. 82-86
Author(s):  
Yang Zhong Chen ◽  
Han Wang ◽  
Fei Yu Fang ◽  
Hui Mei ◽  
Li Wang
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Mechanical Test ◽  
Graphene Nanosheets ◽  
Strain Sensors ◽  
Synergic Effect ◽  
Electrospun Nanofiber ◽  
Promising Candidate ◽  
Tensile Tester ◽  
Morphology And Mechanical Properties

The electrospun nanofiber/graphene composites is a promising candidate in the field of flexible strain sensors due to the synergic effect of graphene and the nanofibers. It is an effective way to synthesize a uniform graphene-embedded film by simultaneously electrospinning nanofibers and electrospraying graphene nanosheets. In this paper, we prepare two specimens of different materials to study the interaction between graphene nanosheets and nanofibers under the same process parameters, such as thermoplastic urethane (TPU), polyacrylonitrile (PAN). Then, morphology and mechanical properties are used to characterize the interaction. The mechanical test was conducted by the tensile tester, and the surface morphology of electrospun nanofibrous films was observed through a microscope. By comparing these results, the properties of the graphene nanosheets embedded to different nanofibers are explored. This study provides a good way to select an appropriate nanofiber matrix for the application in flexible strain sensors.

Plasma-induced Decolorization of Indigo-dyed Denim Fabrics Related to Mechanical Properties and Fiber Surface Morphology

2009 ◽  
Vol 79 (6) ◽  
pp. 558-565 ◽  
Author(s):  
Maja Radetić ◽  
Petar Jovančić ◽  
Nevena Puač ◽  
Zoran Lj. Petrović ◽  
Zoran Šaponjić
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Fiber Surface

Effect of Current Density on the Composition and Mechanical Properties of Cr1-xAlxN Coating by Ion Arc Plating

2012 ◽  
Vol 557-559 ◽  
pp. 1971-1974
Author(s):  
Cheng Xi Wang ◽  
Ji Hua Peng ◽  
Xian Wen Liang ◽  
Jun Tian
Keyword(s):  
Mechanical Properties ◽  
Surface Morphology ◽  
Current Density ◽  
Adhesion Force ◽  
Atomic Ratio ◽  
Pure Metal ◽  
Metal Target ◽  
Micro Hardness ◽  
Al Content ◽  
Maximum Value

The Cr1-xAlxN coatings were deposited onto M2 tool steel using ion arc plating technique. The effect of current density on the surface morphology and mechanical properties of TiN/CrAlN coating was made. It was found that adjusting the pure metal target currents is not only to change the metal atomic ratio, but also to influence the surface morphology, their hardness and adhesion. The micro hardness Hv increases almost linearly with Al content of the coating in this study, and the Cr0.41Al0.59N coating reaches Hv 2950. The adhesion force between the coating and the substrate reaches maximum value 55N, when the [Al]/[Al+Cr] ratio is 0.44.

scholarly journals Co-Electrodeposition of Au–TiO2 Nanocomposite and the Micro-Mechanical Properties

Electrochem ◽  
2020 ◽  
Vol 1 (4) ◽  
pp. 388-393
Author(s):  
Yu-An Chien ◽  
Tso-Fu Mark Chang ◽  
Chun-Yi Chen ◽  
Daisuke Yamane ◽  
Hiroyuki Ito ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Yield Strength ◽  
Surface Morphology ◽  
Composite Film ◽  
Composite Films ◽  
Compression Tests ◽  
Tio2 Content ◽  
Micro Pillars ◽  
Structure And Microstructure ◽  
Electrolyte Effects

Strengthening of electrodeposited Au-based materials is achieved by co-electrodeposition with TiO2 nanoparticles dispersed in a sulfide-based gold electrolyte. TiO2 content in the composite film is adjusted by concentration of the TiO2 in the gold electrolyte. Effects of the TiO2 content on surface morphology, crystalline structure and microstructure of the composite film are investigated. Mechanical properties of the Au–TiO2 composite films are evaluated by micro-Vickers hardness and micro-compression tests. The hardness increases from 135 to 207 HV when the TiO2 content is increased from 0 to 2.72 wt%. Specimens used in the micro-compression test are micro-pillars fabricated from the composite film, and the yield strength reaches 0.84 GPa by incorporating 2.72 wt% TiO2 into the film.

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