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Authors: Joanna Szyndler, Konrad Perzynski, Franciszek Grosman, Lukasz Madej
The main aim of the present work is a detailed analysis of the material flow during the innovative incremental forging process. Description of the investigated incremental forging technology as well as details of the developed numerical models are presented with in the paper.
Authors: Mingjian Hua , Qiongshu Wang, Z. Kent Li , Michael Panzeri, and Anthony J. DeArdo
A new experimental procedure is presented for evaluating the elastic modulus of steel at high temperatures, based on resonance principles, following ASTM Standards El 875-08, E1876-09, and C215.
Authors: Peiman Shahbeigi Roodposhti, Nasim Farahbakhsh, Apu Sarkar, Korukonda Linga Murty
A review on Severe Plastic Deformation (SPD) technique of Equal Channel Angular Pressing (ECAP) process of Commercially Pure Titanium (CP-Ti) alloys is presented with a major emphasize on the influence of ECAP parameters that include channel and curvature angles, processing routes, temperature of operation, pressing speed, internal heating, number of passes through the die and back pressure.
Microstructure And Superplasticity Of Az91 Magnesium Alloy Prepared By Friction Stir Processing Underwater
Authors: Zhang Datong, Chai Fang
Submerged friction stir processing (SFSP), which means the entire process is carried out under water, is an improved technique to normal FSP for refining the microstructure of metallic materials. In this study, microstructure and tensile behaviors of AZ91 magnesium alloy prepared by SFSP are investigated.
Authors: Chai Yifan, Zhang Jianliang, Qi Chenglin, Ning Xiaojun, Zheng Changle
For more details about the rule of pulverized coal combustion with CeO2 as its catalyst, this article illustrated the influence of the experiment on anthracite coal combustion under different heating rates( 5°C/min^ 10°C/mim 15°C/mim 20°C/min ) and with different addition of CeO2 (0.5%^ 1%^ 2% respectively) by thermal analysis technique.
Authors: ZUO Haibin, HONG Jun, ZHANG Jianliang, SHEN Meng, TIE Jinyan
The 1:1 thermal tests are carried out, including the naked cooling stave and cooling stave with 20 mm slag skull, in order to determine the actual cooling performance of the nodular cast iron cooling stave produced by lost foam casting (LFC) process. Heat resistance analysis method is also used to calculate the integrated heat transfer coefficient between cooling water and cooling stave.
Authors: Miguel Angel Barbes, Jose Ignacio Verdeja, Maria Jose Quintana, Luis Felipe Verdeja, Roberto Gonzalez
The microstructure of Pressure Die Casting of an Al-8.5 Si-3.5 Cu alloy used for clean room tiles shows amount of constituents (eutectic and Si phases) that do not correspond to the ones indicated by the phase diagram. Furthermore, there are differences in amount of constituents between the core and the surface zones of parts produced by this process.
Authors: Xingye Guo, Jing Zhang, Yeon-Gil Jung, Li Li, James Knapp
Lanthanum zirconaia (La2Zr2O7) has relatively low thermal conductivity and high temperature stability. It can be used as an advanced thermal barrier coating material to protect the super alloy substrate from high temperatures.
Authors: K. Manigandan and T. S. Srivatsan V. K. Vasudevan, D. Tammana and B. Poorbangi
In this paper, the results of a study on microstructural influences on cyclic strain response, deformation and fracture behavior of an alloy steel is presented Cyclic strain resistance exhibited a linear trend for the variation of both elastic strain amplitude with reversals-to-failure, and plastic strain amplitude with reversals-to-failure.
Authors: J. Toribio, V. Kharin, M. Lorenzo and D. Vergara
The bearings of offshore wind turbines are prone to suffer hydrogen-assisted rolling-contact fatigue. However, there is a scarcity of references related to bearing failure in harsh environment. This way, this paper helps to gain a better understanding of the influence of hydrogen on the service life of offshore wind turbine bearings through a numerical study.