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号:TG 146.6 文献标识码:A Absorptivity of La in AZ91 magnesium alloy and its influencing factors WANG She-bin1, 2, ZHANG Jin-ling1, ZHANG Jun-yuan1, LI Ming-zhao1, GUO Duan-yang1... Materials, Ministry of Education, Taiyuan University of Technology, Taiyuan 030024, China) Abstract: AZ91 magnesium alloy with various additions of La were smelted in vacuum electric furnace. The effects......
microstructure of AZ91 magnesium alloy was studied by optical microscope, electron probe microanalyzer and X-ray diffraction analyzer, the diameter and area of α-Mg grains were measured by image tool. The results show that a small amount of neodymium addition to AZ91 magnesium alloy fines the α-Mg grains, the average grain size becomes 31μm from 108μm and the area of grain decreases obviously, the optimum......
Trans. Nonferrous Met. Soc. China 22(2012) 1028-1034 Microstructural evolution of AZ91 magnesium alloy during extrusion and heat treatment LI Jing-yuan1, XIE Jian-xin1, JIN Jun-bing2, WANG... evolution of AZ91 magnesium alloy was investigated during homogenizing annealing treatment, hot extrusion and ageing treatment, respectively. The results exhibited that both the divorced eutectic......
:AZ91镁合金;Er;显微组织;腐蚀性能 中图分类号:TG 146.2 文献标识码:A Effect of Er on microstructure and corrosion resistance of AZ91 magnesium alloy LIU Chu-ming1, 2, GE Wei-wei1, LI... corrosion resistance, and the corrosion rate is 0.546 06 mg/(cm2·d), only 1/15 of that of common AZ91 alloy. Trace addition of Er enhances the electrode voltage and lowers the corrosion current of AZ91 alloy......
Trans. Nonferrous Met. Soc. China 23(2013) 2215-2221 Texture evolution in AZ91 alloy after hot rolling and annealing B. ALILI, H. AZZEDDINE, K. ABIB, D. BRADAI Faculty of Physics, University of Sciences and Technology Houari Boumediene (USTHB), BP32, El-Alia, Bab Ezzouar, 16111 Algiers, Algeria Received 13 September 2012; accepted 28 December 2012 Abstract: A commercial AZ91 magnesium alloy......
Preparation of AZ91 alloy by powder metallurgy method JIANG Hai(姜 海)1, HE Xin-bo(何新波)1, QU Xuan-hui(曲选辉)1,2, I. S. HUMAIL2 , WANG Xi-tao(王西涛)2 1. School of Materials Science and Engineering... Received 28 July 2006; accepted 15 September 2006 Abstract: Magnesium alloy AZ91 was prepared by powder metallurgy method, and the effect of sintering temperature on the densities and microstructures......
Trans. Nonferrous Met. Soc. China 23(2013) 1595-1601 Extrusion and precipitation hardening behavior of AZ91 magnesium alloy M. THIRUMURUGAN, S. KUMARAN Department of Metallurgical and Materials Engineering, National Institute of Technology, Tiruchirappalli 620 015, India Received 27 July 2012; accepted 10 April 2013 Abstract: The as-cast AZ91 magnesium alloy was extruded at 250 °C, 300 °C and 350......
时效处理和La含量对AZ91合金组织和力学性能的影响王社斌1,2,祁小叶1,张金玲2,刘璐2,许并社2(1.山西省太原市太原理工大学材料科学与工程学院2.山西省太原市太原理工大学新材料界面科学与工程教育部重点实验室)摘 要:借助XRD,SEM,EDS和显微硬度仪等分析测试手段,研究了时效处理和La含量对真空精炼的AZ91合金显微组织和力学性能的影响.结果表明:时效处理可以使第二类β相大量析出,且β相呈不连续层片状沿晶界两侧分布.随La含量的增加,β相的尺寸逐渐减小,而α相的尺寸则呈现先减小后增加的趋势.铸态和时效态试样的力学性能参数均随La含量的增加呈现出先增加后减小的趋势.时效态试样的抗拉强度,屈服强度,延伸率和Vickers硬度分别比铸态试样提高12.65%,16.85%,13.71%和37.24......
al. Effects of rare earths on corrosion behavior of AZ91 Mg alloy[J]. The Chinese Journal of Nonferrous Metals, 2021, 31(7): 1798-1808. DOI: 10.11817/j.ysxb.1004.0609.2021-39759 镁合金因其密度低,比强度以及比模量高等优良特... h的腐蚀形貌 Fig. 2 Corrosion morphologies of Mg alloy before and after adding different rare earth after immersion in 3.5% NaCl solution for 48 h 2.2.2 稀土对AZ91镁合金腐蚀动力学行为的影响 图3(a)所示为添加不同稀土的AZ91镁......
or blocky shaped morphology is observed at the grain boundaries of as-cast AZ91 alloy with Sr additions. AZ91-0.2Sr alloy obtains the best tensile properties comparing with AZ91 and other AZ91-Sr alloys. Comparing with AZ91 alloy, the occurrence of peak hardness of AZ91-0.2Sr alloy is delayed during the aging process. Because of the hard effects of the defined precipitated phase and high-melting......