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Influence of Heat Treatment on Precipitation Behavior and Mechanical Properties of Extruded AZ80 Magnesium AlloyXi Zhao1,Fa-Fa Yan2,Zhi-Min Zhang3,Peng-Cheng Gao4,Shu-Chang Li21. School of Mechanical... Province4. China Aerodynamics Research and Development Center摘 要:By means of annular channel angular extrusion technology and solution treatment,the AZ80......
变形镁合金AZ80的腐蚀疲劳机理 徐永波1,柯伟1,韩恩厚1,刘路1,曾荣昌1 (1.中国科学院金属研究所国家腐蚀与防护重点实验室) 摘要:根据挤压镁合金AZ80人工时效热处理(T5-177℃,16 h)前后分别在空气和NaCl介质中的疲劳寿命,研究了变形镁合金的腐蚀疲劳机理以及β相在腐蚀疲劳中的作用.结果表明:时效可导致AZ80组织β相体积分数增加,拉伸强度和硬度提高,可明显地提高在低应力水平下的腐蚀疲劳寿命.在空气中,疲劳裂纹萌生于表层和亚表面中的夹杂物;而在腐蚀介质中,腐蚀疲劳微裂纹萌生于试样表面的腐蚀坑,点蚀坑萌生于与β相相邻的α相.疲劳断口可见河流花样,二次裂纹,韧窝,具有解理特征.阳极溶解是挤压镁合金AZ80的腐蚀疲劳机制. 关键词:材料失效与保护; 变形镁合金AZ80; 腐蚀疲劳; 机理; [全文内容正在添加中] ......
properties of AZ80 magnesium alloy sheet processed by differential speed rolling [J]. Materials Science and Engineering A, 2009, 508(1/2): 226-233. [12] CHINO Y, LEE J S, SASSA K, KAMIYA A, MABUCHI M. Press... Cold stamping for AZ31B magnesium alloy sheet of cell phone house HUANG Guang-sheng(黄光胜)1, 2, ZHANG Lei(张 雷)1, 2, SONG Bo(宋 波)1, 2, PAN Fu-sheng(潘复生)1, 2 1. National Engineering Research Center......
Dynamic and Static Aging Precipitation of β-Mg17Al12 in the AZ80 Magnesium Alloy During Multi-directional Forging and Subsequent AgingQing-Feng Zhu1,2,Gao-Song Wang1,2,En-Ge Zhang1,2,Fan-Zheng...,Northeastern University摘 要:Dynamic and static aging precipitation of Mg17Al12 phases in AZ80 magnesium alloy was studied by multidirectional forging(MDF......
Effects of minor Sr, Sn and Sc addition on as-cast microstructure and mechanical properties of ZA84 magnesium alloy YANG Ming-bo(杨明波)1, 2, ZHU Yi(朱 翊)1, PAN Fu-sheng(潘复生)2, YANG Hui(杨... magnesium alloy were compared. The results indicate that addition of 0.1%Sr, 0.5%Sn or 0.3%Sc (mass fraction) to the ZA84 alloy can refine the grains of the alloy. Furthermore, addition of 0.1%Sr......
多向锻造工艺对AZ80镁合金显微组织和力学性能的影响 张辉1,郭强1,严红革1,陈振华1 (1.湖南大学材料科学与工程学院,长沙,410082) 摘要:通过多向锻造工艺制备出了组织均匀,晶粒尺寸为1-2μm的AZ80镁合金锻坯.经7个道次锻压,材料硬度,屈服强度和抗拉强度达到最大,分别为87.3 HB,258.78 MPa和345.04 MPa,是锻前试样硬度的1.43倍,强度的2倍;伸长...,分布趋向均匀,材料延性增大. 关键词:AZ80镁合金; 多向锻造; 晶粒细化; 显微组织; 力学性能; [全文内容正在添加中] ......
Microstructure and Tribological Behavior of Self-lubricating(Si:N)-DLC/MAO Coatings on AZ80 Magnesium SubstrateWei YANG1,2,Zhennan DENG3,Dong ZHANG2,Peiling KE2,Aiying WANG21. School of Materials... deposition process was used to deposit duplex(Si:N)-DLC/MAO coatings on AZ80 magnesium alloy.The microstructure and composition of the duplex coatings were analyzed by Raman spectroscopy,X-ray photoelectron......
) in Fig. 3(c) Table 1 Thickness and micro-hardness of PEO coatings on AZ91 and AZ80 magnesium alloys as function of treatment conditions For the AZ80 alloy, the results in terms of thickness... Nyquist plots of AZ91 (a, b) and AZ80 (c, d) samples PEO-treated for 1 min (a, c) and 3 min (b, d) Table 3 Fitting results of experimental data for AZ91 magnesium alloy samples after EIS tests EIS......
refinement of magnesium alloy AZ80 by compression tests was studied, and its effect on the mechanical properties was investigated. It is observed that the microstructure of the as-cast billet with grain... rates on the grain refinement during compression experiments was investigated. 2 Experimental The chemical composition of AZ80 magnesium alloy used in this study was (mass fraction, %) Al 8.90, Zn......
show that the hot compression of AZ80 magnesium alloy has the peak flow stresses of pre-strained alloy with finer grain, which are lower by 20% than those of as-cast alloy under the same deformation...-step process. The one-piece AZ80 alloy wheel was produced by hot forging (as shown in Fig.6). Fig.6 Magnesium alloy forgings: (a) AZ31 bracket; (b) AZ80 wheel The standard tensile specimens......
