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Online since: November 2016
Authors: Ricardo Henrique Buzolin, Victor Ferrinho Pereira, Haroldo Cavalcanti Pinto, Erenilton Pereira da Silva, Brianda Rangel Francisco, Antonio Jose Ramirez Londono, Omar Maluf
Dissimilar Friction Stir Welding of HSLA Steel to Austenitic High-Mn TRIP Steel Ricardo Henrique Buzolin 1,2,a; Brianda Rangel Francisco 1,b; Erenilton Pereira Da Silva1,c; Victor Ferrinho Pereira 3,d; Antonio Jose Ramirez Londono 3,4,e; Omar Maluf 5,f; Haroldo Cavalcanti Pinto1,g* 1 Department of Materials Engineering, University of São Paulo, 13563-120, São Carlos, Brazil 2Helmholtz-Zentrum Geesthacht, Magnesium Innovation Centre, Max-Plack-Straße, 1 Geesthacht, Germany 3 Brazilian Nanotechnology National Laboratory -CNPEM, 13083-970, Campinas, Brazil 4 Department of Materials Science and Engineering, N.
However, high-strength low alloyed (HSLA) steels are the state-of-the-art materials used in welded automotive panels.
Fig. 7 exhibits the typical tensile curves for the butt-joints and their base materials.
Vollertsen, Microstructure and mechanical properties of laser-welded joints of TWIP and TRIP steels, Materials Science and Engineering A 527 (2010) 2071–2078
Journal, 90, 95-101
Online since: September 2013
Authors: Min Ji, Yong Wang, Fen Wang
By doing so, calorific power of sludge can be utilized and energy saving can be realized. 1 Introduction Components (except for organic matters) of municipal sludge were similar to construction materials and organic matters in sludge would be fired during brick production.
Table 1 Compositions of municipal sludge (mass percent %) SiO2 Al2O3 Fe2O3 CaO MgO LOSS 24.47 7.10 3.40 2.19 2.42 58.9 Shale and clay used in experiments were from construction materials market, and its compositions were shown in Table 2 and Table 3.
Table 9 Heavy metal leaching concentration for fired shale-sludge brick with 50% sludge addition of [μg/L] Heavy metal Leaching quantity Max. allowable heavy metal leaching concentration of sludge building materials utilization in Shanghai Z0 Z1 Z2 Hg 0.03 0.2 0.5 10 Cd 0.2 2.0 10 50 As 0.1 10 10 100 Cr 3.6 15 30 350 Pb 18.7 20 40 100 Notes: Z0 building materials used in strict environmental condition, such as ground water protection; Z1 building materials used in special environmental, such as park and industrial park; Z2 building materials used in situations without hazardous influence.
It could be seen from Table 9 that when sludge addition percent was no more than 50%, heavy metal leaching concentrations were lower than Z0 standard of maximum allowable heavy metal leaching concentration of sludge building materials utilization in Shanghai.
Chinese Journal of Environmental Engineering, 2010, 4(5): 26-29.
Online since: March 2008
Authors: Harshad K.D.H. Bhadeshia, Philip J. Withers, Howard James Stone
Withers2,c 1 Dept. of Materials Science & Metallurgy, Pembroke St, Cambridge, CB2 3QZ, UK 2 School of Materials, Grosvenor St., Manchester, M1 7HS, UK a hjs1002@cam.ac.uk, bhkdb@cam.ac.uk, cphilip.withers@manchester.ac.uk Keywords: residual stress, martensitic transformations, synchrotron diffraction Abstract.
Residual stresses have been measured in welded joints by diffraction for almost as long as diffraction techniques have been used to study strains deep within materials [2].
Karlsson of ESAB AB for the provision of weld filler materials.
Mills: Journal of Strain Analysis for Engineering Design 23 (Oct, 1988), 201-11
Palmer: Metallurgical and Materials Transactions a-Physical Metallurgy and Materials Science 37A (Jul, 2006), 2171-82
Online since: December 2011
Authors: Kamal Ait Tahar, F. Taouche, Ne Hannachi
These studies use construction materials with standardized properties.
It presents a comparison between two families of beams (small beams and normal beams) out of BA with same materials what makes it possible to study the scale effect.
As the composite being integrated in the matrix, the physical interface with concrete still remains permanent and the adherence between the two materials is perfect.
Chateauneuf , :confinement of the Concrete Structures by Embedded Composite Grids » journal Key Engineering Materials Vol. 425, 2010 pp195-216, special volume is Trends in Composite Materials and their Design.
Département de génie civil, faculté des sciences et de génie, université laval.
Online since: November 2009
Authors: Shamil Kh. Mukhtarov
In [5-7] it has been shown that with decreasing grain size via SPD in various materials - magnesium alloy, pure copper and alloy 718 - one can observed an increase in strength and a decrease in plasticity at room temperature.
Valiakhmetov: Nanostructured Materials 6 (1994), p. 913 [3] V.A.
Sakai: Materials Transactions Vol. 49, No. 1 (2008), p. 69 [7] M.
Markushev: Journal of Materials Science 31 (1996), p. 4997 [16] O.A.
Alexandrov: Nanostructured materials processed by severe plastic deformation.
Online since: February 2011
Authors: Meng Hou, Martin Veidt, Ron Rasch, Rowan Paton, Michael Heitzmann
Most materials have two energies where the dynamic charge balance is obtained; these are typically referred to as E1 and E2.
For most materials E1 is at energies not suitable for SEM operation and also does not present a stable operating condition [16].
Table 1: Composition details of materials used in Monte Carlo simulation PSU Epoxy (TGMDA/MPDA) Density 1.24 g/cm3 Density 1.22 g/cm3 Element Z Atomic Fraction Element Z Atomic Fraction C 6 0.7105 C 6 0.3899 O 8 0.1053 H 1 0.5084 S 16 0.0263 N 7 0.0338 H 1 0.1579 O 8 0.0677 Using these two materials an EDX analysis across a non-diffused interface of the two materials was simulated to determine the effect of the interaction volume on the accuracy of this method in relation to the acceleration voltage.
Coating thickness was approximately 10nm for both materials.
Journal of Materials Science. 1994;29(15):3969-3978
Online since: May 2017
Authors: M. Zergoug, Mohammed Azzaz, Ahmed Haddad, H. Mechri
Azzaz1, d 1Laboratoire des Sciences et de Génie des Matériaux,USTHB, BP 32 Bab Ezzouar, Algerie 2Centre de Recherche enTechnologies Industrielles, BP 64, Chéraga, Algérie ah-mechri@hotmail.fr, bhaddad_ah@hotmail.com, cmzergoug@yahoo.com, dmazzaz@usthb.dz * corresponding author Keywords: Thin film, CuFe solid solution, Microstructure, DRX, MET, VSM.
Abstract: Commercial copper and iron powders were used as starting materials.
Synthesis of CuFe alloy particles CuFe supersaturated solid solution particles were synthesized using mechanical alloying, commercial copper and iron powders were used as starting materials.
The initial stoichiometry was conserved after 30 h of milling and no contamination was found even from the material constituents of balls and vials (Cr).
Liu, Distinct magnetic states of metastable fcc structured Fe and Fe–Cu alloys studied by ab initio calculations, Journal of Alloys and Compounds. 414 (2006) 36–41
Online since: December 2024
Authors: Heru Setyawan, Netanya Avabel, Nais Septianingrum, Susanto Susanto, Tantular Nurtono
Electrocatalysts was produced from precious metals, non-precious metals, and carbon-based materials [7], [8] Pt is the most widely utilized electrocatalyst based on a precious metal for oxygen reduction reactions because of its high and stable electrocatalytic activity.
Carbon-based materials such as carbon aerogel have high catalyst activity and environmentally friendly [9].
Material and Methods Materials.
Oshitani, “Primary Batteries – Reserve Systems | Seawater Activated Batteries: Magnesium,” in Reference Module in Chemistry, Molecular Sciences and Chemical Engineering: Encyclopedia of Electrochemical Power Sources, J.
Belver, “Review on Activated Carbons by Chemical Activation with FeCl3,” C — Journal of Carbon Research, vol. 6, no. 2, p. 21, Apr. 2020, doi: 10.3390/c6020021
Online since: January 2013
Authors: Yuan Yuan Xu, Yan Hong Wang, Fa Dong Wu
Research on Geological Tourism Resources of Lingchuan-Wangmangling National Geopark WANG Yan-hong1, a,WU Fa-dong1 XU Yuan-yuan1 1 School of Earth Sciences and Resources,China University of Geosciences,Beijing 100083 awangke5886@163.com Keywords: geopark;geological tourism resource;development suggestions.
Tourism development suggestions: Travel development project of the park should regard the geological resources and the natural ecological environmental protection as the prerequisite, to pay attention to the science of the tourist activity, The interest and property of participation, to different visitor's colonies, the ones that make and can reflect Lingchuan-Wangmangling geological ground form resource characteristics and natural ecological environment advantages on the whole study the traveling products (by Yu Han, 2006).
In the course of the field comprehensive geology investigations and the materials collections, we got the energetic supports given by the Lingchuan government and County’s Territory Resource Office, Thank you very much to master graduate students Yang Lulin, Wang Lu, Zhang Chenguang, Sun Quan, Ren Fang, Meng Li, Zhang Zhiguang, Zhang Lei, Gao Xiangnan, Zhao Wei etc. from ( Beijing) School of Earth Science & Resources of China University of Geosciences, whose devotions and diligence of the field investigation and materials arrangement work.
Journal of Southwest University of Science and Technology:Philosophy and Social Science Edition, 25(2):7-11
Online since: April 2017
Authors: J. Lu, Wei Sun, A. Campbell-Brown, Shan Tung Tu
Materials: Design & Applications 222 (3), 175-182, 2008
Materials: Design and Applications 218, 211-222, 2004
East China University of Science & Technology. 2014
Determining high temperature properties of weld materials.
Journal, Series A 45 (1), 77-83, 2002.