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Texture of AZ31B magnesium alloy sheets produced by differential speed rolling technologiesLIU Huaqiang, TANG Di, CAI Qingwu, and LI Zhen National Engineering Research Center of Advanced Rolling Technology, University of Science & Technology Beijing, Beijing 100083, China摘 要:The effects of differential speed rolling (DSR) on the texture of AZ31B......
processed by differential speed rolling LIU Xian-lan1, 2, ZHANG Wen-yu2, LIU Chu-ming1, LI Hui-zhong1, ZENG Su-min1 (1. School of Materials Science and Engineering, Central South University, Changsha 410083... sheet is refined from 13.2 μm processed by normal rolling to 8.9 μm processed by differential speed rolling; during the differential speed rolling, the grain size of AZ31 magnesium alloy sheet is refined......
异步轧制Mg-3Al-1Zn合金板材的微观组织丁茹1,王伯健1,师晓莉1(1.陕西省西安市西安建筑科技大学 冶金工程学院)摘 要:采用光学显微镜研究变形量为38%和45%的异步轧制Mg-3Al-1Zn合金板材的微观组织.结果表明,经变形量为38%和45%的异步轧制后,板材的平均晶粒尺寸分别由13.6μm细化至2.8μm和3.5μm.可见,异步轧制有利于板材的晶粒细化,但当晶粒细化到一定程度以后,继续增大变形量将很难使晶粒进一步细化.组织细化主要取决于所产生的附加剪切变形和再结晶形核质点的增多.关键......
) Mg-13Zn-1.55 Y alloy(ZW132) with a high volume fraction(7.4%) of icosahedral phase(I-phase, Mg3Zn6Y) particles was prepared by applying high-ratio differential speed rolling(HRDSR) on the cast microstructure...Superplastic behavior of an ultrafine-grained Mg-13Zn-1.55Y alloy with a high volume fraction of icosahedral phases prepared by high-ratio differential speed rollingT.Y.Kwak1,2,W.J.Kim21. Rare Metal......
; 文献标志码:A Microstructure and room temperature formability of AZ31 magnesium alloy produced by differential speed rolling XIA Wei-jun, CAI Jian-guo, CHEN Zhen-hua, CHEN Gang, JIANG Jun... alloy sheets by multiple pass differential speed rolling(DSR) technic with small-speed ratio, the characteristic of microstructures and formation mechanisms for DSRed sheets were studied......
J. Cent. South Univ. (2020) 27: 3702-3720 DOI: https://doi.org/10.1007/s11771-020-4561-1 MPC-based path tracking with PID speed control for high-speed autonomous vehicles considering time-optimal... the desired path as fast as possible, a novel autonomous vehicle path tracking based on model predictive control (MPC) and PID speed control was proposed for high-speed automated vehicles considering......
异步轧制AZ31镁合金板材的晶粒细化及性能 王伯健1,任晨辉1,丁茹1,刘长瑞1 (1.西安建筑科技大学冶金工程学院,陕西,西安,710055) 摘要:采用上下轧辊速比1.125的异径异步轧制方法对AZ31镁合金板材进行轧制.采用光学显微镜,X射线衍射仪和电子拉伸机等设备分析轧制前后AZ31镁合金板材的微观组织和力学性能.结果表明:AZ31镁合金热挤压板坯在加热到350℃后,经一道次38%压下率的异步轧制,可获得平均晶粒尺寸为2.8 μm的等轴晶粒,板材轧制方向的伸长率和抗拉强度显著增加;轧制过程中形成了非基面晶粒取向;伸长率的增大与晶粒细化和非基面织构的形成有关,抗拉强度的增大归因于晶粒的显著细化效应. 关键词:异步轧制; 镁合金; 晶粒细化; 力学性能; differential speed rolling; magnesium alloy; grain refinement......
mill is working under the maximum acceleration or deceleration, after t, the rolling speed changes from v1 to v2, then the angular acceleration an is ... 130 mm, coil diameter range 610-2 000 mm, range of wrapping angle 4°-23°, the maximum rolling speed 1 200 m/min, coiling tension range 7-140 kN. The diameter of detecting roller was 350 mm, Length 1......
Optimum rolling speed and relevant temperature-and reduction-dependent interfacial friction behavior during the break-down rolling of AZ31B alloyWeitao Jia1,Yan Tang1,Fangkun Ning1,Qichi Le1,Lei... Engineering University摘 要:The present study aimed to determine the optimum rolling speed for break-down rolling of as-cast AZ31 B alloy and investigated......
rolling (NR), differential speed rolling (DSR) and cross rolling (CR), and the forming properties at room temperature were investigated. The results show that the mechanical properties of AZ31 magnesium...; differential speed rolling; cross rolling; basal texture; stamping; bulge forming property 变形镁合金是目前使用最轻的金属结构材料之一,不仅具有较高的比强度和比刚度,而且具有优良的电磁屏蔽性,散热性,减震性和机械加工性能.在3C电子信息产品,汽车,家电以及航天航空等领域得到广泛应用.由于其突出的性能优势和易回......
