Effects of Solution Treatment on the Microstructure and Properties of 7003 Aluminum Alloy

2010 ◽  
Vol 123-125 ◽  
pp. 1219-1222
Author(s):  
Xiao Ming Chen ◽  
Ren Guo Song
Keyword(s):  
Electron Microscopy ◽  
Solid Solution ◽  
Aluminum Alloy ◽  
Solution Treatment ◽  
Solution Temperature ◽  
X Ray ◽  
Microstructure And Properties ◽  
Solid Solution Treatment ◽  
Before And After ◽  
Scanning Electron

The microstructure and properties of 7003 aluminum alloy before and after aging under various solid solution treatment parameters have been studied by electronic tensile machine, scanning electron microscopy (SEM) and energy dispersive X-ray spectrometer (EDS). It’s showed that the strength decreased while the ductility increased with raising the solid solution temperature before aging; the strength decreased and then increased while the ductility increased and then decreased with increasing the solid solution time. The strength of 7003 aluminum alloy after aging were evidently higher than those before aging, and the samples solutioned at 743 K for 70 min were of the best mechanical properties with YS=286 MPa, UTS=345 MPa, E=15.5%, which are higher than those of the original alloy by 2.1%, 1.5% and 29.1% respectively. Hence 743 K/70 min is one of the best solid solution regimes.

scholarly journals Microstructure and Mechanical properties development of ZA27 alloy through heat treatment

2021 ◽  
Vol 9 (12) ◽  
pp. 1484-1490
Keyword(s):  
Heat Treatment ◽  
Solid Solution ◽  
Solution Treatment ◽  
X Ray Diffraction ◽  
X Ray ◽  
Wear Rates ◽  
Za27 Alloy ◽  
Β Phase ◽  
Solid Solution Treatment ◽  
Scanning Electron

In this work, ZA-27 alloy was fabricated and solid solution treatment at 120, 240 and 360 °C for 1 hr., microstructure and physical properties of alloy were studied by X-ray diffraction, scanning electron microscopy. Results observed that the microstructure of ZA-27 alloy manufactured (as-cast) was composed of α, β, η and ε phases, then decomposed to β phase at 360 oC. The heat treatment of ZA-27 alloys influenced on microstructure, decreasing of strength and hardness, but also causes increasing of elongation. The wear rates of changes increase with increasing solid solution treatment

Burnt Microstructure and Properties of 7003 Aluminum Alloy

2011 ◽  
Vol 217-218 ◽  
pp. 1454-1457
Author(s):  
Xiao Ming Chen ◽  
R.G. Song
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Tensile Strength ◽  
Aluminum Alloy ◽  
Optical Microscope ◽  
Solution Temperature ◽  
Transgranular Fracture ◽  
Microstructure And Properties ◽  
Wide Range ◽  
Scanning Electron

The microstructure and properties of 7003 aluminum alloy with and without burning have been investigated by means of electronic tensile machine, optical microscope (OM) and scanning electron microscopy (SEM). The results showed that the burning level of 7003 alloy increases while the ultimate tensile strength (UTS) and yield strength (YS) for the alloy decrease with increasing the solution temperature. When the solution temperature is higher than 763 K, the UTS and YS for the alloy decline fast with wide-range. The remelting structure, namely burnt structure, appeared on the grain boundaries in 7003 aluminum alloy and then weaken grain boundary, hence resulting in the transition of fracture surfaces from transgranular fracture to intergranular fracture.

The Precipitation of Si in AlCuSi Thin Films

1973 ◽  
Vol 31 ◽  
pp. 34-35 ◽  
Author(s):  
R. M. Anderson
Keyword(s):  
Electron Microscopy ◽  
Thin Films ◽  
Heat Treatment ◽  
Solid Solution ◽  
Integrated Circuit ◽  
Copper Film ◽  
Solution Concentration ◽  
X Ray ◽  
Silicon Thin Films ◽  
Before And After

Aluminum-copper-silicon thin films have been considered as an interconnection metallurgy for integrated circuit applications. Various schemes have been proposed to incorporate small percent-ages of silicon into films that typically contain two to five percent copper. We undertook a study of the total effect of silicon on the aluminum copper film as revealed by transmission electron microscopy, scanning electron microscopy, x-ray diffraction and ion microprobe techniques as a function of the various deposition methods.X-ray investigations noted a change in solid solution concentration as a function of Si content before and after heat-treatment. The amount of solid solution in the Al increased with heat-treatment for films with ≥2% silicon and decreased for films <2% silicon.

scholarly journals Phase Relations in the ZrO2-MgO-FeOx System: Experimental Data and Assessment of Thermodynamic Parameters

2021 ◽  
Author(s):  
Ivan Saenko ◽  
O. Fabrichnaya
Keyword(s):  
Electron Microscopy ◽  
Experimental Data ◽  
Solid Solution ◽  
Thermodynamic Parameters ◽  
Spinel Phase ◽  
Experimental Investigations ◽  
X Ray ◽  
Heat Treated ◽  
Preliminary Phase ◽  
Scanning Electron

AbstractThermodynamic parameters were assessed for the MgO–FeOx system and combined with already available descriptions of ZrO2-FeOx and ZrO2-MgO systems to calculate preliminary phase diagrams for planning experimental investigations. Samples of selected compositions were heat treated at 1523, 1673 and 1873 K and characterized using x-ray and scanning electron microscopy combined with energy dispersive x-ray spectroscopy (SEM/EDX). Experiments indicated extension of cubic ZrO2 solid solution into the ternary system at 1873 K (75 mol.% ZrO2, 10 mol.% FeOx and 15 mol.% MgO) and limited solubility of 4 mol.% ZrO2 in spinel phase. Based on the obtained results thermodynamic parameters of C-ZrO2 and spinel phase were optimized.

Phase relationships in the Fe-rich region of the Ce–Nd–B–Fe quaternary system at 773 K

2021 ◽  
Vol 112 (9) ◽  
pp. 726-734
Author(s):  
Ketong Luo ◽  
Jianlie Liang ◽  
Jinming Zhu ◽  
Xuehong Cui
Keyword(s):  
Electron Microscopy ◽  
Solid Solution ◽  
Quaternary System ◽  
Continuous Solid Solution ◽  
Rich Region ◽  
Quaternary Compound ◽  
X Ray ◽  
Three Phase ◽  
Scanning Electron ◽  
Phase Relationships

Abstract The Fe-rich corner of the Ce–Nd–B–Fe quaternary system at 773 K has been experimentally investigated by means of X-ray powder diffraction and scanning electron microscopy equipped with energy dispersive X-ray spectroscopy techniques. No quaternary compound was observed in this system. Ce2Fe14B and Nd2Fe14B were found to form the continuous solid solution (Ce,Nd)2Fe14B. Ce-Fe4B4 and NdFe4B4 also form the solid solution (Ce,Nd)-Fe4B4. The isothermal section consists of 8 three-phase regions and 2 four-phase regions.

Process Study on Prepared Al2O3-TiB2 Composite Coating by Reactive Spray

2012 ◽  
Vol 472-475 ◽  
pp. 309-312
Author(s):  
Xiao Ping Zhou ◽  
Ming Li ◽  
Xin Zhou
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Aluminum Alloy ◽  
Composite Coating ◽  
Milled Powder ◽  
X Ray ◽  
Phase Constituent ◽  
Process Study ◽  
High Microhardness ◽  
Scanning Electron

The microstructures and properties of Al2O3-TiB2 composite coating on the surface of the aluminum alloy by reactive spraying was studied. The influences of mechanical alloying and spraying temperature on the phase constituent and microstructure of the composite were analyzed by X-ray diffractometry(XRD) and scanning electron microscopy(SEM). The results indicate that Al2O3-TiB2 composite coating is obtained by plasma spraying using milled powder of Al，TiO2，B2O and B2O3. The coating possesses high microhardness of 1300 HV0.1.

Effect of Synthesis Conditions and Actinide Contents on Phase Composition of Actinide Bearing Ceramics

2003 ◽  
Vol 807 ◽  
Author(s):  
A. G. Ptashkin ◽  
S. V. Stefanovsky ◽  
S. V. Yudintsev ◽  
S. A. Perevalov
Keyword(s):  
Electron Microscopy ◽  
Solid Solution ◽  
Phase Composition ◽  
Fluorite Structure ◽  
X Ray Diffraction ◽  
X Ray ◽  
Synthesis Conditions ◽  
Reducing Conditions ◽  
Dispersive System ◽  
Scanning Electron

ABSTRACTPu-bearing zirconolite and pyrochlore based ceramics were prepared by melting under oxidizing and reducing conditions at 1550 °C. 239Pu content in the samples ranged between ∼10 and ∼50 wt.%. Phase composition of the ceramics and Pu partitioning were studied using X-ray diffraction (XRD) and scanning electron microscopy with energy dispersive system (SEM/EDS). Major phases in the samples were found to be the target zirconolite and pyrochlore as well as a cubic fluorite structure oxide. Normally the Pu content in the Pu host phases was 10–12 wt.%. This corresponds to the Pu content recommended for matrices for immobilization of excess weapons plutonium. At higher Pu content (up to 50 wt.%) additional phases, such as a PuO2-based cubic fluorite-structured solid solution, perovskite, and rutile were found.

Effect of Solid Solution Treatment on Corrosive Action of 00Cr26Ni5Mo2Cu3Re Duplex Stainless Steel in Acid Stage

2011 ◽  
Vol 335-336 ◽  
pp. 566-570
Author(s):  
Hong Pu Zhao ◽  
Shun Xing Wang
Keyword(s):  
Solid Solution ◽  
Stainless Steel ◽  
High Temperature ◽  
Low Temperature ◽  
Acid Solution ◽  
Duplex Stainless Steel ◽  
Solution Treatment ◽  
Solution Temperature ◽  
Solid Solution Treatment ◽  
Corrosive Resistance

Effect of solid solution treatment on corrosive behavior of 00Cr26Ni5Mo2Cu3Re Duplex Stainless Steel in static stage of HNO3+HF acid solution is studied in the paper.The results show that the corrosion between phases and pitting corrosion on ferrite are serious at low temperature ,the phenomenon gradually disappear with the solid solution temperature rising ; the corrosive resistance of 00Cr26Ni5Mo2Cu3Re is getting better first and then decrease with solution temperature at high temperature, the best corrosive resistance temperature is at 1050°C.

Effect of Joining Process on the Coatings of Self-Piercing Rivets

2012 ◽  
Vol 488-489 ◽  
pp. 1501-1505 ◽  
Author(s):  
Mahsa Esfahani ◽  
Yvonne Durandet ◽  
James Wang ◽  
Yat Choy Wong
Keyword(s):  
Electron Microscopy ◽  
Scanning Electron Microscopy ◽  
Optical Microscopy ◽  
Mechanical Joining ◽  
X Ray ◽  
Before And After ◽  
Riveting Process ◽  
Al Coating ◽  
Joining Process ◽  
Scanning Electron

In this study, effects of laser assisted self-pierce riveting (LSPR) as a mechanical joining technique were investigated on the coatings of self- piercing rivets. Zn-Sn and Al plated rivets were used to join magnesium sheets by LSPR. Microstructure, surface topography and roughness of the rivet’s coatings were characterized by optical microscopy, scanning electron microscopy (SEM), energy-dispersive X-ray spectroscopy (EDS) and surface profilometry. A comparison of results before and after joining process showed that under joining conditions, Zn-Sn coating was deformed during riveting process and its thickness and microstructure varied along the rivet shank, while Al coating remained unchanged and no effects of riveting process was detected.

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