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Computer Aided Design Of Innovative Incremental Forming Process

Published: 2014
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.

Material Resources / Publications

High Temperature Young’s Modulus Of A Seamless Pipe Steel

Published: 2014
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.

Material Resources / Publications

A Review On The Equal Channel Angular Process Of Commercially Pure Titanium

Published: 2014
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.

Material Resources / Publications

Microstructure And Superplasticity Of Az91 Magnesium Alloy Prepared By Friction Stir Processing Underwater

Published: 2014
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.

Material Resources / Publications

Influence Of Various Heating Rates And Ceoi Addition On The Pulverized Coal Combustion

Published: 2014
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.

Material Resources / Publications

Thermal Test And Heat Transfer Analysis Of Nodular Cast Iron Cooling Stave

Published: 2014
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.

Material Resources / Publications

Effect Of Pressure In The Microstructure Of Die Cast Al- 8.5Si-3.5Cu Alloys

Published: 2014
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.

Material Resources / Publications

Ab Initio Study of Thermal Properties of Lanthanum Zirconate

Published: 2014
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.

Material Resources / Publications

Cyclic Strain Resistance, Deformation And Fracture Behavior Of A Novel Alloy Steel

Published: 2014
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.

Material Resources / Publications

Hydrogen-Assisted Rolling-Contact Fatigue In Bearings For Wind Turbines: A Numerical Study

Published: 2014
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.

Material Resources / Publications

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