Microstructural Characterization and Mechanical Properties in Friction ... Scholar, Department of Mechanical Engineering, College of Engineering Guindy,.
Oct 24, 2011 - This treatment is well known by over aging. Thermomechanical processing consists in cold or hot-deformed state on material and subsequently ...
University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg ... sites fabricated by dynamic compaction ... High velocity compaction tech-.
University of Science and Technology Beijing and Springer-Verlag Berlin Heidelberg 2014. Mechanical ... sites fabricated by dynamic compaction. A. Atrian1) ... High velocity compaction tech- ... the powder remains relatively cool elsewhere.
Abstract. A microstructural and mechanical investigation on lap joints welded by friction stir welding and made out of a 7075-T6 stringer and a 2024-T4 skin is ...
activated by HaOH and sodium silicate. Most previous studies deal only with alkali-activated slag or fly ash, as for the combined use of both, relatively little.
Feb 21, 2019 - of the partitioning at the temperatures 175 and 225 ◦C, which produced the ..... estimated from the Koistinen and Marburger (KM) equation [20]:.
Al-Cu-Li-Mg-Ag alloy 2195 for space applications and the Al-Cu-Mg-Ag alloy ..... Final Report, Lockheed Martin Aeronautical Systems LG97ER0037 (1997), p.
approach can become inefficient as the material properties of individual cellular struts are often coupled with the ..... Advanced lightweight 316L stainless steel cellular lattice structures fabricated via selective laser melting. Materials and ...
Dec 21, 2013 - and aqueous solution of sodium silicateâwater glass. (modulus n .... connected to the viscosity of sodium silicate solution, as it increases with ...
spectroscopy (EDS) and X-ray mapping (SEM) were employed to observe the effect of ... evaluate the characteristics of the laser superficial hardening (LSH) in a ...
Jul 15, 2018 - Abstract: In this study, explosive welding was used in the cladding of ...... Miao, G.; Ma, H.; Shen, Z.; Yu, Y. Research on honeycomb structure ...
streetcars, welding operations, electrical power trans- .... of the electrical resistance measurement where 1 represents titanium plates (mesh) and 2 - mortar ...
Apr 12, 2016 - However, material cost is the biggest barrier for further application considered the ... Inter Gas welding process (TIG) [9,10], Electron Beam Melting (EBM) ... structure formed by pulsed plasma arc welding, of which reason is.
Schmidt hammer is located to hit the specimen ... ture of specimen after pendulum hammer hit) ..... compaction efficiency of plasters at the stage of plas-.
Keywords: Friction stir welding; Lap joint, AlY5083, StY12; Joint strength. 1. ... is due to the combination of three mechanisms of macroscopic mechanical locking,.
Jun 15, 2011 - Abstract. Microstructures and a microstructural, columnar architecture as well as mechanical behavior of as-fabricated and processed ...
or mechanical property behavior using the die casting process or the die ... vacuum to achieve the melt cleanliness required for aerospace .... Table V. Although the specification requirements are not presented here the castings generally met ...
Microstructural characterization and evaluation of mechanical ... › publication › fulltext › Microstru... › publication › fulltext › Microstru...Si3N4 composites. Sample. Density g/cm3. Porosity (1 porosity unit = 1%). LM 25 + 0 wt.% Si3N4. 2.68. 8.3
with microid diamond compound (3µm). The samples were then etched in Keller's agent for 15 seconds before being examined. Image analysis were done by ...
Jul 12, 2016 - Faculty of Mechatronics and Mechanical Engineering, Kielce University of ... 1. Introduction. The metallic porous materials are a relatively new class of ..... Ashby, M.F.; Evans, A.G.; Fleck, N.A.; Gibson, L.J.; Hutchinson, J.W.; Wadl
Synthesis and Microstructural Characterization of Nanosrructured Materials. 3 1.
2.3. .... The PDF analysis of nano Alp04 samples indicates more and more bond.
Jul 12, 2016 - The pores are formed by the physical-chemical reaction resulting from ... partial differential equations describing interaction forces between ... Figure 4 shows SEM microphotographs of sintered foam surfaces of ASC .... gasâhydrogen
refinement analysis for different phases present in annealed as well as in cold-worked states and Warren-Averbach's method of line profile analysis is also used ...
Microstructural characterization and mechanical property of Cd-48.7 wt.% Ag alloy P.Bose1, S.K.Shee2, S.K.Pradhan1 and M.De2
1
Department of Physics, The University of Burdwan, Golapbag, Burdwan-713104, West Bengal, India.
2
Department of Materials Science, Indian Association for the Cultivation of Science, Jadavpur, Calcutta-700032, India
ABSTRACT The 50-50 (at%/wt%) region of the Cd-Ag alloy phase diagram is very much complicated owing to the existence of several undefined (broken) phase boundaries. The present study concerns the alloy composition, Cd-48.7wt% Ag lying within this region considered for (i) correctly identifying by x-ray diffraction, the different phases formed, (ii) characterizing in the deformed state the detailed microstructure of the evaluated phases and finally, (iii) to analyze the composite effect of the phases present on the mechanical property (microhardness) of the alloy. The analysis revealed formation of one γ-brass (Cu5Zn8) like structure in Cd-Ag alloy (Ag5Cd8) with highly contracted lattice parameter is observed along with two other hcp and order bcc phases. The observed microhardness value of this composite alloy is found unusually high (365 kg/mm2). An effort is made to explain such exaggerated microhardness value in the light of various microstructural parameters, like particle size (coherently diffracting domain), r.m.s strain, stacking fault density, stacking fault energy, dislocation density etc. as evaluated adopting Rietveld’s powder structure refinement analysis for different phases present in annealed as well as in cold-worked states and Warren-Averbach’s method of line profile analysis is also used particularly to evaluate stacking fault probabilities of different nature.
