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at temperatures ranging from 550 ℃ to 650 ℃. Annealing temperature had stronger effect on mechanical properties than annealing time. TEM observations showed that nano-sized precipitates formed when the steel was annealed at 150 ℃ for 90 min, but the size and density of precipitates had no noticeable change with annealing temperature and time. Recrystallization occurred when the steel was annealed......
℃ respectively with a holding time of 4 h at each temperature. The effects of annealing on microstructure, mechanical and electrical properties of as-cast alloy were investigated by using differential...Effects of Annealing on Microstructure, Mechanical and Electrical Properties of AlCrCuFeMnTi High Entropy AlloyNONG Zhisheng1,2,ZHU Jingchuan1,2,YANG Xiawei1,2,YU Hailing1,LAI Zhonghong11. School......
Influences of Composition and Annealing on the Martensitic Transformation in Ni-Fe-Ga Alloys余华军School of Physics and Electronic Information, Gannan Normal University摘 要:annealing treatment were studied in detail by an optical microscope, X-ray diffraction, and differential scanning calorimeters methods. The experimental results show......
(AlFeSi). The transformation products α(AlFeSi) are nano-sized particles. An experimental phenomena, 'minimum solution point during intermediate annealing process, is also found and deemed...; microstructure; intermediate annealing 铝箔广泛应用于包装, 电气, 建筑等领域, 随着21世纪生物工程, 能源, 环保等技术的发展, 铝箔的应用领域及相关技术的拓展必将越来越广阔. 目前工业化大生产的铝箔最小厚度在0.0055~0.006mm, 进一步减小铝箔的厚度和提高成品率是铝箔工业的重要发展方向[1-3]. 铝箔是一种极限加工产品, 必须......
. An optimum annealing time was proposed to result in the least amount of micro-segregation of aluminum and silicon between graphite nodules.关键词:... that aluminum not only increases the nodule count and pearlite content but also improves the hardness in both sand mold and metal mold castings. Annealing treatments were conducted to attain a homogenous......
Effect of vacuum annealing on the characteristics of composite pellets containing DBSA-doped polyaniline and Fe nanoparticlesQing Wu1),Hong Qiu1),Chun-ying Fang1),Kun Fang2) 1) School of Applied... was compacted to pellets and the pellets were an-nealed in vacuum at 443,493,543,and 593 K for 60 and 120 min. The conductivity of the pellet increases markedly with increasing the annealing temperature up to 493......
hot spinning and annealing was observed and mechanical properties of spun tubes were tested. The results show that with the increase of spinning pass, the fiber microstructure comes into being gradually in axial direction and the circumferential microstructure also stretches obviously along circumferential direction. At the same time, the tensile strength increases and elongation decreases......
冷轧薄板45号钢连续退火生产工艺研究乔建军1,尉冬2,滕华湘2,刘李斌2,王海全2(1.北京市北京首钢冷轧薄板有限公司技术质量部2.首钢技术研究院 薄板所,北京 100043)摘 要:研究了在连续退火生产工艺下退火温度以及带钢退火均热段保温时间对45号钢再结晶后珠光体球化的影响.采用Vatron公司设备Multipas(多功能连续退火模拟器)进行不同均热温度及不同退火时间等工艺模拟.结果表明:45号钢在均热时间为170s和250s时,退火均热温度在820℃时珠光体打碎效果较好,能得到相应球化组织,伸长率较高;均......
conditions and after the postdeformation annealing of AA6082 aluminum alloys with different Mn content(0.05 wt.%-1 wt.%) were studied by optical, scanning electron, and transmission electron..., static recrystallization occurred after 2 h of annealing, and grain growth commenced after 4 h of annealing, whereas in Mn-containing alloys, the recovered grain structure was well-retained after even......
Effects of the Annealing Heating Rate on Sputtered Aluminum Oxide Films唐秀凤School of Applied Physics and Materials, Wuyi UniversityState Key Laboratory of Solidification Processing,School of Materials... of the annealing heating rate on structure and properties of both 500 ℃-annealed and 900 ℃-heated films were investigated systematically.It was found that distinct γ-Al2O3 crystallization was observed......
