Effect of electropulsing treatment on solid solution behavior of an aged Mg alloy AZ61 strip

2008 ◽  
Vol 23 (10) ◽  
pp. 2685-2691 ◽  
Author(s):  
Yanbin Jiang ◽  
Guoyi Tang ◽  
Lei Guan ◽  
Shaonan Wang ◽  
Zhuohui Xu ◽  
...  
Keyword(s):  
Solid Solution ◽  
Solution Process ◽  
Solution Treatment ◽  
Mg Alloy ◽  
X Ray Diffraction ◽  
Solution Behavior ◽  
Β Phase ◽  
Solid Solution Treatment ◽  
Conventional Heat Treatment ◽  
Electropulsing Treatment

The effect of electropulsing treatment (EPT) on the solution behavior of aged Mg alloy AZ61 strip was investigated using scanning electron microscope (SEM) and x-ray diffraction (XRD). It was found that EPT accelerated tremendously the dissolution of β phase into α matrix in an aged Mg alloy AZ61 strip. The dissolution of β phase took place in less than 4 s at relatively low temperature under EPT, compared with that in conventional heat treatment. A mechanism for rapid solid solution process during EPT was proposed based on the coupling of the thermal and athermal effects. The results in this investigation indicated that EPT played an important role in the nonequilibrium microstructural evolution in the alloy. It is supposed that EPT can provide a highly efficient approach for solid solution treatment of the alloy.

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

scholarly journals Decreasing Bio-Degradation Rate of the Hydrothermal-Synthesizing Coated Mg Alloy via Pre-Solid-Solution Treatment

Materials ◽  
2017 ◽  
Vol 10 (8) ◽  
pp. 858 ◽  
Author(s):  
Dan Song ◽  
Cheng Li ◽  
Liwen Zhang ◽  
Xiaolong Ma ◽  
Guanghui Guo ◽  
...  
Keyword(s):  
Solid Solution ◽  
Degradation Rate ◽  
Solution Treatment ◽  
Mg Alloy ◽  
Solid Solution Treatment

Effect of the Solid-Solution Treatment on the Die-Casting Structures and Properties of Commercial RE-AZ91D Mg Alloy

2014 ◽  
Vol 1061-1062 ◽  
pp. 13-16
Author(s):  
Zhi Chao Liu ◽  
Yao Li ◽  
Jun Jie Yang
Keyword(s):  
Solid Solution ◽  
Tensile Strength ◽  
Die Casting ◽  
Solution Treatment ◽  
Treatment Temperature ◽  
Elongation Ratio ◽  
Β Phase ◽  
Solid Solution Treatment ◽  
Α Phase ◽  
Structures And Properties

Effect of the solid-solution treatment on the structures and properties of the die-casting AZ91D alloy with mixed rare-earth elements was explored.The results show that the the tensile strength and the elongation ratio δ have been improved by solid-solution treatment.The higher the treatment temperature was,the better the improvement were.With the increase of the temperature,the content of β phase was lower when those of M-RE compound and the refinement α phase were higher.The tensile strength can reach 304.74Mpa and the elongation ratio can reach 11% after the solid-solution treatment of 370°C×16h.

Effect of Boron Addition on Microstructure and Mechanical Properties of AZ84 Mg Alloy

2016 ◽  
Vol 879 ◽  
pp. 653-658
Author(s):  
Ju Hyun Won ◽  
Seok Hong Min ◽  
Tae Kwon Ha
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Solution Treatment ◽  
Treatment Temperature ◽  
Mg Alloy ◽  
Solution Treatment Temperature ◽  
Solid Solution Treatment ◽  
Microstructure And Mechanical Properties ◽  
Peak Aging ◽  
Aging Kinetics

Effect of B addition on the microstructure and mechanical properties of AZ84 Mg alloy was investigated in this study. Through calculation of phase equilibria of AZ84 Mg alloy, carried out by using FactSage® and FTLite database, solution treatment temperature was decided as temperature of 330oC, where supersaturated solid solution can be obtained. Solid solution treatment of AZ84 Mg alloy was successfully conducted at 330oC and supersaturated microstructure with all almost all phases resolved into matrix was obtained. After solution treatment, hot rolling was successfully conducted by reduction of 60%. Compression and tension tests were carried out at room temperature on the samples in as-cast, solution treated, hot-rolled and subsequently recrystallized states. After solid solution treatment, each alloy was soaked at temperatures of 180 and 200oC for time intervals from 1 min to 48 hrs and hardness of each condition was measured by micro-Vickers method. Peak aging conditions were deduced as at the temperature of 200 oC for 10 hrs for ZA84 Mg alloy. By addition of boron, aging kinetics was expedited and strength was enhanced.

Effect of Quenching Treatment on Microstructure and Hardness of Mg-9Li-4Al-1Zn-0.5Y Alloy

2017 ◽  
Vol 748 ◽  
pp. 245-249
Author(s):  
Chao Duan ◽  
Jin Liang Huang
Keyword(s):  
Solution Process ◽  
Solution Treatment ◽  
Optical Microscope ◽  
Solution Temperature ◽  
Second Phase ◽  
Strengthening Effect ◽  
X Ray Diffraction ◽  
Β Phase ◽  
Quenching Process ◽  
Solution Strengthening

This paper studies the effect of different solution temperature and quenching medium on Microstructure and hardness of Mg-9Li-4Al-1Zn-0.5Y alloy by means of optical microscope (OM), X-ray diffraction (XRD) and hardness testing. The results show that in the solution process, the higher of the solution temperature is, more of the second phase dissolved in β phase. In the quenching process, the higher of the cooling rate is, more of the second phase dissolved in the β phase precipitates from the super-saturation β matrix, which can greatly weaken the solution strengthening effect. The hardness of the investigated alloy reaches its highest value with solution treatment at 648K and water-quenched treatment, increased from 58HB to 108HB.

Effects of Solid Solution Temperature on the Structure and Properties of TC16 Titanium Alloy Bars

2014 ◽  
Vol 881-883 ◽  
pp. 1588-1591
Author(s):  
Quan Ming Liu ◽  
Zhao Hui Zhang ◽  
Hai Ying Yang ◽  
Shi Feng Liu
Keyword(s):  
Solid Solution ◽  
Titanium Alloy ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Martensite Phase ◽  
Solution Temperature ◽  
Β Phase ◽  
Solid Solution Treatment ◽  
Structures And Properties ◽  
Reduction Of Area

The effects of solid solution temperature on the structures and properties of TC16 titanium alloy bars that made solid solution treatment in 780°C, 800°C, 850°C, 900°C, respectively, the processing time for 30min, then cooled in the air were studied. The results show that during solid solution treatment under 800°C, the alloy structures are the primary ɑ phase and the metastable β phase, while solid solution temperature rise to 800°C, the alloy structures begin to appear ɑ" martensite phase. With the increase of solid solution temperature, the alloy grain grow up somewhat, material tensile strength increases gradually, yield strength firstly decreases and then increases, elongation at break firstly increases and then decreases, percentage reduction of area at break decreases gradually. Solid solution state of TC16 titanium alloy bars are not suitable for cold heading forming, strengthening the titanium alloy must be subsequent artificial aging treatment.

Effect of the Solid-Solution Treatment on the Die-Casting Structures and Properties of Commercial RE-AZ91 Mg Alloy

2012 ◽  
Vol 476-478 ◽  
pp. 109-113
Author(s):  
Yao Li ◽  
Jun Jie Yang ◽  
Wu Xin Yu ◽  
Ping Xue ◽  
Zhi Jiang Zuo ◽  
...  
Keyword(s):  
Solid Solution ◽  
Tensile Strength ◽  
Grain Boundaries ◽  
Rare Earths ◽  
Die Casting ◽  
Solution Treatment ◽  
Mg Alloy ◽  
Elongation Ratio ◽  
Solid Solution Treatment ◽  
Structures And Properties

Effect of the solid-solution treatment on the casting structures and properties of the die-casting Mg alloy was explored through the way of adding mixed rare earths Y, Gd and Nd into the commercial Re-AZ91 Mg alloy . The results show that the solid-solution treatment could improve effectively the microstructures of the alloy, and Mg17Al12 phrase on the grain boundaries could transform from network struture into dotlike or granular one. At the same time, the compounds on the grain boundaries were less than those before the solid-solution treatment, the compounds were dispersed inside the grain . Both the microstructures and the mechanics properties of the alloy could be improved remarkably, and also, the tensile strength σb could reach over 280MPa, the elongation ratio δ over 9% when the temperature of the solid-solution treatment was between 270°C and 410°C. When the temperature of the solid-solution treatment exceeded 420°C, coarse Al-RE compounds would be formed inside the alloy, which could reduce the mechanics properties of AZ91 Mg Alloy.

Effect of Solid Solution Treatment on the Microstructure and Properties of Fe-Mn-Al Light-Weight Steel

2014 ◽  
Vol 788 ◽  
pp. 311-316 ◽  
Author(s):  
Fu Qiang Yang ◽  
Ren Bo Song ◽  
Lei Feng Zhang ◽  
Chao Zhao
Keyword(s):  
Solid Solution ◽  
Tensile Strength ◽  
Solution Treatment ◽  
High Strength ◽  
X Ray Diffraction ◽  
Solid Solution Treatment ◽  
Increasing Temperature ◽  
Hot Rolled ◽  
Strain Hardening Behavior ◽  
Strength And Ductility

A study was made of the effects of solid solution treatment on the properties of hot rolled Fe-Mn-Al steel and on the microstructure transformation. In the steel, the austenite matrix and ferrite duplex phases were confirmed by micrographs and X-ray diffraction. It was indicated that the hot rolled Fe-Mn-Al steel (6.55g/cm3 in density) is with mechanical properties of tensile strength 1315.6MPa, elongation 14.60%. The tensile strength decreases with increasing temperature. The tensile test displays an outstanding combination of high strength and ductility at room temperature due to continuous strain hardening behavior. The product of tensile strength and ductility can reach 46.5GPa·%. Solution treatment contributes to the dissolution of precipitate, austenite grain growth and banded ferrite crushing.

Study of Solid Solution Treatment on Spray Deposited 7A04 Alloy

2012 ◽  
Vol 217-219 ◽  
pp. 1853-1856
Author(s):  
Rui Ming Su ◽  
Ying Dong Qu ◽  
Run Xia Li ◽  
Rong De Li
Keyword(s):  
Mechanical Properties ◽  
Solid Solution ◽  
Solution Treatment ◽  
Aging Treatment ◽  
Hot Extrusion ◽  
X Ray Diffraction ◽  
Two Stage ◽  
Solid Solution Treatment ◽  
Microstructure And Mechanical Properties ◽  
Better Than

The Al-Zn-Mg-Cu (7A04) alloys were prepared by using the method of spraying deposition and the hot extrusion. The effects of two-stage solid solution treatment and single solid solution treatment on the microstructure and mechanical properties of spray deposited 7A04 alloy were investigated. The microstructure and mechanical properties were observed and tested by optical microscopy, SEM, X-ray diffraction and other methods. It is indicated that the two-stage solid solution treatment is better than the single. After the two-stage solid solution, the sizes of recrystallization grains were small and a lot of precipitations were dissolved. And the microstructure was nice by ageing treatment. The tensile strength and elongation of the alloy can respectively reach 740MPa and 5.8 percent by the two-stage solid solution (at 450°C for 1 hour and 475°C for 2 hours) and the aging treatment.

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