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Microstructure and properties characteristic during interrupted multi-step aging in Al-Cu-Mg-Ag-Zr alloyZHU Baohong,XIONG Baiqing,ZHANG Yong’an,ZHANG Jianbo,WANG Feng,and LI Zhihui State Key Laboratory of Nonferrous Metals and Processes,General Research Institute for Nonferrous Metals,Beijing 100088,China摘 要:The effects of interrupted multi-step aging......
of solution and aging treatment process on microstructure and mechanical properties of Ti-6Al-6V-2Sn titanium alloy rods ZHU Bao-hui1, 2, Zeng Wei-dong2, CHEN Lin1, HU Xiao-chen1 (1. Titanium Product Plant...: The influences of solution and aging treatment process on microstructure and properties of Ti-6Al-6V-2Sn alloy rods were investigated by using optical microscope (OM), XRD, scanning electron microscopy (SEM......
steps.Firstly,the aging treatment at interval of 50℃ in a temperature range from 900 to 1050℃ was carried out in order to obtain fine grains.Secondly,another aging treatment at 850 ℃ was performed... or a little recrystallization inδ-grains.During the second aging treatment,σ-phase mainly nucleated atδ/γinterfaces and further grew along those interfaces into various morphologies(e.g.,butterfly......
℃, respectively. Besides, the activation energy of the interfacial IMC growth was also calculated to be 68.27 kJ/mol. The IMC grain diameters after aging treatment increase with the increasing aging time... was found during aging treatment. Moreover, the U-shape evolution of the values in hardness and Young’s moduli was found in this work.关键词:......
of the aging hardening effect. After aging treatment, these precipitates are surrounded by a precipitate free zone. For the studied alloy, appropriately cooling rate is between that of 7050 alloy... of the alloy after isothermal treatment at 325 ℃ for 100 s 图6 不同温度下保温100 s后时效态合金晶内及晶界透射电镜照片 Fig. 6 TEM images of precipitates at grain boundary and inside grain of alloy under aging......
Heat Treatment of Modified 6005A Alloy for Vehicles GUO Ming-Xing1,WANG Ming-Pu1,LI Zhou1,CAO Ling-fei1 (1.School of Materials Science and Engineering, Central South University, Changsha 410083, China) 摘要:Modified 6005A alloy was reported and its mechanical properties were studied by tensile test, hardness measurement and TEM analysis. Results show that the favorable aging condition for 6005A......
Mg-Gd-Zn-Zr合金中的LPSO结构和时效相曾小勤1,2,吴玉娟3,彭立明4,林栋樑3,丁文江3,彭赢红5(1.上海市上海交通大学材料科学与工程学院上海市镁材料及应用工程技术研究中心2.上海市上海交通大学材料科学与工程学院金属基复合材料国家重点实验室3.上海交通大学 材料科学与工程学院 轻合金精密成型国家工程研究中心4.上海交通大学 材料科学与工程学院,轻合金精密成型国家工程研究中心,上海 2000305.上海交通大学 机械与动力工程学院)摘 要:为了研究Mg-Gd-Zn-Zr合金中的长周期堆垛有序(LP......
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increases gradually. XRD analysis results show that after aging treatment, the crystalline diffraction peak of thermoplastic esterified starch at 2θ = 21° disappears and the diffraction peaks of PLA at 2θ... one along with the increasing time of aging treatment, suggesting that the hydrolysis of amorphous regions of PLA is more preferential than its crystalline regions. Because of the influence of crystal......
MPa), elongation rate (δ≥34%), conductivity (≥80.5% IACS), and hardness (80 HRB) compared to the as-cast alloy. Key words: Cu-Cr alloy; vacuum continuous casting; solid solution treatment; aging...-diameter Cu-0.6Cr alloy cylindrical bar. The cast bar was cut into several small pieces. The ingots were then subjected to various solid solution treatment (960 ℃, 1.5 h) and aging treatment (480 ℃, 1, 4......
