Cover Picture: Mechanical Properties and Failure Mechanisms of Graphene under a Central Load (ChemPhysChem 13/2014)

ChemPhysChem ◽  
2014 ◽  
Vol 15 (13) ◽  
pp. 2637-2637
Author(s):  
Shuaiwei Wang ◽  
Baocheng Yang ◽  
Shouren Zhang ◽  
Jinyun Yuan ◽  
Yubing Si ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Failure Mechanisms ◽  
Central Load

Mechanical Properties and Failure Mechanisms of Graphene under a Central Load

ChemPhysChem ◽  
2014 ◽  
Vol 15 (13) ◽  
pp. 2749-2755 ◽  
Author(s):  
Shuaiwei Wang ◽  
Baocheng Yang ◽  
Shouren Zhang ◽  
Jinyun Yuan ◽  
Yubing Si ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Failure Mechanisms ◽  
Central Load

A comprehensive study on the mechanical properties and failure mechanisms of graphyne nanotubes (GNTs) in different phases

2020 ◽  
Vol 182 ◽  
pp. 109794
Author(s):  
Babak Azizi ◽  
Sasan Rezaee ◽  
Mohammad Jafar Hadianfard ◽  
Kianoush Hatami Dehnou
Keyword(s):  
Mechanical Properties ◽  
Failure Mechanisms ◽  
Comprehensive Study

An Evaluation of Waspaloy Expander Blade Tip Weld Repairs

1990 ◽  
Author(s):  
David W. Cameron
Keyword(s):  
Mechanical Properties ◽  
Abrasive Wear ◽  
Catalytic Cracking ◽  
Failure Mechanisms ◽  
Fluid Catalytic Cracking ◽  
Unit Power ◽  
Heat Treated ◽  
Blade Tip ◽  
Power Recovery ◽  
Effective Life

The abrasive wear of blade tips in fluid catalytic cracking unit power recovery turbines is one of the principal ‘failure’ mechanisms for the parts. The occurrence of tip wear considerably shortens the effective life of the blade: generally well below the anticipated mechanical life of the component. This paper details the evaluation of mechanical properties and metallographic characteristics of a fully re-heat treated, Waspaloy on Waspaloy weldment for blade tip repair that will allow re-utilization of the blades.

Investigation on mechanical properties and failure mechanisms of basalt fiber reinforced aluminum matrix composites under different loading conditions

2017 ◽  
Vol 52 (14) ◽  
pp. 1907-1914 ◽  
Author(s):  
Yang Zhiming ◽  
Liu Jinxu ◽  
Feng Xinya ◽  
Li Shukui ◽  
Xu Yuxin ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Failure Mechanisms ◽  
Basalt Fiber ◽  
Aluminum Matrix ◽  
Fiber Content ◽  
Aluminum Matrix Composites ◽  
Matrix Composites ◽  
Fiber Reinforced ◽  
Basalt Fibers ◽  
Static Compression

Basalt fiber reinforced aluminum matrix composites with different fiber contents (i.e. 0 wt%, 10 wt%, 30 wt% and 50 wt%) were prepared by hot-press sintering. Microstructure analysis indicates that basalt fibers are uniformly distributed in 10% basalt fiber reinforced aluminum matrix composite. The interfacial bonding between basalt fibers and aluminum matrix is good, and there is no interface reaction between basalt fiber and aluminum matrix. Quasi-static tensile, quasi-static compression and dynamic compression properties of basalt fiber reinforced aluminum composites were studied, and the influences of basalt fiber content on mechanical properties were discussed. Meanwhile, the failure mechanisms of basalt fiber reinforced aluminum matrix composites with different fiber content were analyzed.

scholarly journals Kekerasan Baja Karbon Sedang dengan Variasi Suhu Permukaan Material

Jurnal METTEK ◽  
2018 ◽  
Vol 4 (2) ◽  
pp. 43
Author(s):  
Dwi Payana ◽  
I Made Widiyarta ◽  
Made Sucipta
Keyword(s):  
Mechanical Properties ◽  
Carbon Steel ◽  
Contact Surface ◽  
Room Temperature ◽  
Failure Mechanisms ◽  
Material Surface ◽  
Temperature Variations ◽  
Vickers Indent ◽  
Steel Material ◽  
Hardness Tests

Beban gesek pada permukaan sebuah benda dapat menimbulkan panas pada permukaan kontak benda tersebut. Semakin besar beban gesek yang terjadi, suhu pada permukaan material akan menjadi lebih tinggi. Peningkatan suhu permukaan yang semakin tinggi dapat mempengaruhi sifat mekanis permukaan material dan tentunya dapat berimplikasi terhadap mekanisme kegagalan pada permukaan material tersebut, seperti kegagalan aus dan kegagalan retak. Pada penelitian ini, uji kekerasan dilakukan pada material dengan suhu permukaan tertentu. Permukaan material baja karbon sedang dipanaskan dengan variasi suhu yaitu mulai dari suhu kamar sampai dengan 300ºC, kemudian dilakukan uji Vicker’s. Tingkat kekerasan dan profil indentasi Vickers pada permukaan material dengan variasi suhu tersebut kemudian diinvestigasi. Friction load on the surface of an object can cause heat on the contact surface of the object. The larger the frictional load occurs, the temperature on the surface of the material will become higher. Increased surface temperatures can further affect the mechanical properties of the material surface and can certainly have implications for the failure mechanisms on the surface of the material, such as wear failure and crack failure. In this study, hardness tests were performed on materials with certain surface temperature. The surface of the carbon steel material is being heated with temperature variations ranging from room temperature up to 300ºC, then Vicker's test. The degree of hardness and Vickers indent profile on the surface of the material with the temperature variation is then investigated.

Mechanical Behavior and Failure Mechanisms of SCS-6/Ti3Al Composites

1990 ◽  
Vol 194 ◽  
Author(s):  
S. M. Jeng ◽  
C. J. Yang ◽  
J.-M. Yang ◽  
D. G. Rosenthal ◽  
J. Goebel
Keyword(s):  
Electron Microscopy ◽  
Mechanical Properties ◽  
Room Temperature ◽  
Failure Mechanisms ◽  
Crack Initiation And Propagation ◽  
Al Composite ◽  
Initiation And Propagation ◽  
Bend Tests ◽  
Scanning Electron

AbstractThe mechanical properties and failure mechanisms of the SCS-6/Ti3Al composite have been studied. Both tensile and notched bend tests were conducted at room temperature on the monolithic and fiber-reinforced Ti-25Al-10Nb-3V-1Mo. Optical and scanning electron microscopy were used to study the crack initiation and propagation mechanisms. The role of the fiber, matrix and interfacial properties on the composite behavior was also assessed.

Failure Mechanisms in Directionally Solidified Alumina-Titania Composites

2005 ◽  
Vol 290 ◽  
pp. 199-202 ◽  
Author(s):  
Carmen Baudín ◽  
Ali Sayir ◽  
Marie Helene Berger
Keyword(s):  
Mechanical Properties ◽  
Directional Solidification ◽  
Mechanical Behaviour ◽  
Failure Mechanisms ◽  
Secondary Phase ◽  
Al2o3 Content ◽  
Directionally Solidified ◽  
Two Phase ◽  
Load Bearing

The mechanical properties of directionally solidified two-phase eutectics can be superior to that of either constituent alone due to the strong constraining effects of the interlocking microstructure. The present work focuses on the failure mechanisms that occur in Al2O3-Al2TiO5 composites fabricated by directional solidification. Two compositions rich in alumina have been considered. The constituents were the same in both materials, primary Al2O3 dendrites surrounded by a TiO2-containing phase, with different morphological and size characteristics. The dendrites in the material containing the smallest amount of Al2O3 were short and highly interpenetrated by the secondary phase whereas those of the material with the highest Al2O3 content were long and much less interpenetrated. The mechanical behaviour in bending was determined by these microstructural differences because the load bearing phase in these directionally solidified materials in the system Al2O3-Al2TiO5 are the Al2O3 dendrites.

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