共搜索到36269条信息，每页显示10条信息，共3627页。用时：0小时0分0秒604毫秒
Trans. Nonferrous Met. Soc. China 24(2014) s125-s128 Effect of electrolyte on mechanical properties of AZ31B Mg alloy in electrolytic plasma processing Byung Hyun AHN1, Jung Il SONG2, Bon Heun KOO1 1... properties of AZ31B Mg alloys can be enhanced by the proper selection of electrolyte agent. Key words: AZ31B Mg alloy; surface treatment; electrolytic plasma processing 1 Introduction Magnesium and its......
-Cu prepared in vacuum induction smelting furnace, together with some Mg. Then, the alloy was heat-treated, and different testing means were used to detect the experimental effects and its modification, strengthening and wear mechanisms were discussed. The results show that this master alloy has significant refining effects on the coarse primary Si, eutectic Si and α(Al), and adding Mg after......
pH递增；裂纹和腐蚀坑是材料损伤的主要形貌特征,而MgCl2的局部富积是形成腐蚀坑的重要原因；随着浸泡时间延长,Mg(OH)2沉积于试样表面并逐步增长,成为Ca,P在Mg表面沉积的屏障,因此抑制Mg(OH)2的形成和生长是诱导磷酸钙陶瓷在Mg表面沉积的必要条件. 关键词:纯镁；模拟体液；腐蚀；Mg(OH)2；羟基磷灰石 中图分类号:TG 146.22 ...到金属镁,5 d后有Mg(OH)2出现,但浸泡7 d后Mg(OH)2的衍射峰消失,随后在14 d出现,浸泡21 d后,Mg(OH)2的衍射峰强度提高,数量增多,而金属镁的很多衍射峰则被屏蔽了. 图7 浸泡不同时间后试样的XRD谱 Fig.7 XRD patterns of samples immersed in SBF for different times 由图......
J. Cent. South Univ. Technol. (2008) 15: 459-462 DOI: 10.1007/s11771-008-0086-8 Influence of Mg3N2 powder on microstructures and mechanical properties of AZ31 Mg alloy ZHAO Hong-liang(赵红亮)1...: In order to obtain an effective and reliable grain refiner for Mg-Al alloys, 1% (mass fraction) Mg3N2 was added into AZ31 Mg alloy. The microstructures of the Mg alloys were studied by optical......
; 所列. 表1 实验所用AZ31B镁合金的化学成分 Table 1 Chemical composition of AZ31B Mg alloy (mass fraction, %) 原始板坯经过430 ℃,2 h的均匀化退火后,电火花切割成d10 mm×6.5 mm的圆柱,样品截取方法如图1所示.压缩变形试验在Gleeble 1500热模拟机上进行,压...看出,实验所用AZ31B镁合金基本为等轴晶组织,晶粒大小为25 μm左右；均匀化处理后,AZ31B镁板具有较强的基面织构(轴密度参量为2.18),这对后续的压缩变形有重要影响. 图2 均匀化处理后AZ31B镁合金的金相组织 Fig.2 Optical microstructure of AZ31B Mg alloy after homo......
Trans. Nonferrous Met. Soc. China 25(2015) 3909-3920 Effect of equal-channel angular pressing and aging on corrosion behavior of ZK60 Mg alloy Xin LI1, Jing-hua JIANG2, Yong-hao ZHAO1, Ai-bin MA2... University, Nanjing 210098, China; 3. Department of Materials Science and Engineering, NC State University, Raleigh 27695, USA Received 22 January 2015; accepted 2 July 2015 Abstract: Commercial ZK60 Mg alloy......
均匀,平均晶粒度约为8.9 ?m；而常规轧制板材的晶粒组织中则存在大量的孪晶,且分布不均匀,其平均晶粒度达13.2 ?m.这主要是在常规轧制和异步轧制过程中,镁合金的变形机理以及这2种轧制方式变形机理差异所决定的. (a) 常规轧制；(b) 异步轧制 图1 AZ31镁合金板材显微组织 Fig.1 Microstructures of AZ31 Mg alloy...验条件下,下辊直径大于上辊直径,因此板材下表面承受的剪切变形也更大.在其他条件相同时,附加的剪切变形使得晶粒更加细小均匀. (a)下表面；(b) 上表面；(c) 横截面 图2 总变形量为40%时AZ31镁合金板材的显微组织 Fig.2 Microstructures of AZ31 Mg alloy sheets at 40% of total thickness......
Influence of CaO on damping capacity and mechanical properties of Mg alloy Dong-In JANG1, Jin-Kyu LEE1, Dae-Up KIM2, Shae-K KIM1 1. Advanced Material Division, Korea Institute... damping capacity and better mechanical properties, the microstructures, the mechanical properties at room temperature and the damping capacity of Mg alloy adding CaO were investigated and compared......
Effect of CaO composition on oxidation and burning behaviors of AM50 Mg alloy Jin-Kyu LEE, Shae K. KIM Advanced Material Division, Korea Institute of Industrial Technology, 7-47... into AM50 Mg alloys. Key words: Mg alloy; CaO; oxidation behavior; burning behavior 1 Introduction AM50 Mg alloy has already been applied to certain automobile parts, such as instrument panel, seat......
岩. AZ91D 镁合金半固态触变成形压铸工艺[J]. 中国有色金属学报, 2008, 18(4): 595?600. YAN Feng-yun, QIANG Xu-dong, ZHANG Yu-hai, HUANG Xiao-feng, FAN Song-yan. Die-casting process of semi-solid thixo-forming of AZ91D Mg alloy...；在准静态破坏和动态破坏下,材料断口的微观形貌具有很大不同. 关键词:AZ91镁合金；应变硬化；动态压缩；断口分析 中图分类号:O 346 文献标识码:A Dynamic compressive behavior and damage mechanism of cast magnesium alloy AZ91 ZHAO Feng1......
