搜索结果: 1-15 共查到“材料科学 Mg-Al”相关记录23条 . 查询时间(0.218 秒)
本发明涉及镁合金表面处理领域,具体地说是一种镁合金表面原位生长Mg-Al水滑石膜的成膜溶液,以及使用所述溶液在镁合金表面制备Mg-Al水滑石膜的方法。该成膜溶液包括前处理液和后处理液,前处理溶液是在饱和碳酸溶液中滴加含Al的碱性溶液所得,含Al的碱性溶液是将纯铝板放在室温至90℃的碱性溶液中溶解至饱和所得；后处理溶液是在前处理液基础上,用碱性溶液调节pH值所得；镁合金为含铝量低或不含铝的镁合金。采...
在氩气保护下,采用机械合金化制备Mg-Al合金,并研究二维结构材料B、SG及MG的添加对Mg-Al合金储氢性能的影响。试验结果显示,合金材料主要由Mg17Al12相组成,在碳素材料的催化作用下,Mg-Al合金的综合储氢性能得到明显提高。Mg-Al合金的初始放氢温度为575 K,添加SG或MG后合金材料的初始放氢温度分别降低了64 K和82 K,脱氢峰值温度也分别降低了76 K和74 K,而Mg-A...
基于KKS相场模型模拟了Mg-Al合金Mg17Al12单个连续析出相的形貌演化. 相场模型中, 各相自由能及化学势由Thermo-Calc热力学计算软件计算. 构造各向异性函数时考虑了界面能各向异性的影响, 基于Khachaturyan微观弹性应变能理论考虑了微观弹性应变能的影响. 结果表明: 仅考虑界面能各向异性不考虑微观弹性应变能, 析出相呈板条状形貌; 仅考虑微观弹性应变能不考虑界面能各向异...
Microstructures of Mg-Al-Zn and Al-Si-Cu cast alloys
Microstructures Mg-Al-Zn Al-Si-Cu cast alloys
2010/8/11
Recent years’ dynamic development, being present in the automobile industry, is mostly based on innovative constructional solutions as well modern materials, which directly influence mass, performance...
Selection of heat treatment condition of the Mg-Al-Zn alloys
Heat treatment Magnesium alloys Mechanical properties
2009/12/14
Purpose: Main aim of this paper are results of the optimization of heat treatment conditions, which are temperature and heating time during solution heat treatment or ageing as well the cooling rate a...
Structure and properties of alloys of the Mg-Al-Zn system
Mechanical properties Magnesium alloys Tensile test at elevated temperatures
2009/12/14
Purpose: In the following paper there have been the structure and complex of mechanical properties of magnesium alloys presented which requires very often knowledge of elastic-plastic properties at el...
The influence of the heat treatment on the microstructure and properties of Mg-Al-Zn based alloys
Heat Treatment Metallography Magnesium alloys
2009/12/3
Purpose: In the following paper there have been the structure and properties of the MCMgAl12Zn1, MCMgAl9Zn1, MCMgAl6Zn1, MCMgAl3Zn1 magnesium cast alloy as-cast state and after a heat treatment presen...
Characteristic of Mg-Al-Zn alloys after laser treatment
Laser alloying Magnesium alloy High Power Diode Laser (HPDL)
2009/12/2
Purpose: The structure and the properties of casting magnesium alloy EN-MCMgAl3Zn1, EN-MCMgAl6Zn1,
EN-MCMgAl9Zn1 and EN-MCMgAl12Zn1 after laser surface treatment are presented in this paper. The aim ...
Purpose: The aim of the present work is to study the influence of temperature on tensile properties of the magnesium
alloy AJ50, and to discuss possible hardening and softening mechanisms and therma...
铸造Mg-Al-Zn合金的成分、相组成与凝固路径的关系
Mg-Al-Zn合金 相平衡热力学 显微组织
2009/11/30
采用SEM, EDS和XRD研究了几种Mg-Al-Zn合金的成分、相组成与凝固路径的关系. 结果表明, Mg-Al-Zn合金的相组成与Zn/Al质量比有关；随着Zn/Al比值的增加, 第二相γ-Mg17Al12的数量减少, 逐渐被Φ-Mg21(Zn, Al)17 取代, 直至完全消失. 通过搜集合金中可能存在的各相的热力学模型, 运用Pandat热力学计算软件平台, 计算并比较了平衡和非平衡(Sc...
研究了Mg-(4~7)Al-2Sr系列四种合金的显微组织、拉伸和蠕变性能及Al含量对其组织和性能的影响。Mg-(4~7)Al-2Sr系合金的铸态组织均由α-Mg和沿枝晶界分布的第二相构成。Al含量为4%时在晶界处形成了离异共晶和少量层片共晶Al4Sr相及大块的三元τ(Mg-Al-Sr)相。Al含量的增加使Al4Sr全部转变为更加粗大的层片状共晶,同时共晶相的体积分数增加而τ相体积分数减小,当Al含...
Thermal and mechanical characteristics of cast Mg-Al-Zn alloy
Magnesium alloy UMSA thermal analysis
2011/4/7
This work presents effect of cooling rate on the grain size, mechanical properties and thermal characteristic results of MCMgAl9Zn1 cast alloy. The solidification process was studied using the cooling...
Thermal and mechanical characteristics of cast Mg-Al-Zn alloy
Magnesium alloy UMSA thermal analysis
2011/4/2
This work presents effect of cooling rate on the grain size, mechanical properties and thermal characteristic results of MCMgAl9Zn1 cast alloy. The solidification process was studied using the cooling...
运用固体与分子经验电子理论(EET)的计算结果分别建立Al-Si、Mg-Al两种合金熔体的剩余化学键的局域价电子结构基本单元即残余键结构模型，从压力对熔体结构作用的层面，分析热力学平衡相图中最大固溶点和共晶点发生偏移的本质原因，并指出压力作用下热力学平衡相图的变化是合金熔体微观结构信息变化的宏观反映。结果表明：压力作用抑制了合金熔体中Si-Si、Al12残余键结构的扩散速率，使其不容易“捕捉”到周...