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K4104高温合金AlSi涂层1000℃氧化性能研究
K4104高温合金 AlSi涂层 氧化动力学
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2009/9/24
采用带能谱分析的扫描电镜分析了AlSi扩散涂层在1000℃、不同氧化时间条件下的表面形貌、截面组织及成分变化；用增重法记录重量变化，绘制了氧化动力学曲线，对其氧化性能进行了研究.结果表明，AlSi涂层由于Si的加入，促进了θ-Al2O3向α-Al2O3转变，有利于在涂层表面形成致密氧化膜，并且能促进在氧化皮下形成碳化物隔层，抑制涂层元素与基体元素的互扩散，从而使 AlSi涂层的抗氧化性能优于单一A...
Be/AlSi/Be激光焊接接头的显微组织
铍 铝硅合金 激光焊接 微观组织
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2010/3/22
以AlSi合金为过渡材料，运用激光焊接技术实现Be与Be的连接；采用扫描电镜、纳米压痕仪及透射电镜对焊接接头的显微组织、剪切断口形貌及性能进行研究。结果表明：熔合区和焊缝区组织由Be与AlSi合金形成的复合相构成，焊缝区显微硬度和弹性模量分别为2 GPa和140 GPa，熔合区宽度约10 μm；焊接接头剪切强度约为283 MPa，剪切断口具有以准解理为主并伴有塑性的混合型断口特征，熔合区附近热应力...
Influence of refining AlSi alloy on the porosity of pressure moulds
aluminum-silicon alloy high pressure die casting molten metal refining porosity content
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2011/3/30
This study presents research results of the influence that refining and transfer of AlSi12S alloy on the porosity of high pressure die-castings. Tests were conducted under production conditions of Di...
Influence of refining AlSi alloy on the porosity of pressure moulds
aluminum-silicon alloy high pressure die casting molten metal refining porosity content
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2011/3/30
This study presents research results of the influence that refining and transfer of AlSi12S alloy on the porosity of high pressure die-castings. Tests were conducted under production conditions of Di...
Effect of ring notch radius on the decohesion mode in AlSi alloys
docohesion elastic-plastic model strain nominal-stress HMH hypothesis
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2011/3/30
The article discusses the effect of the, determined by tensile test, non-linear characteristics of AlSi alloys on the value of the shape factor k for the three different sizes of the radius of the rin...
Effect of ring notch radius on the decohesion mode in AlSi alloys
docohesion elastic-plastic model strain nominal-stress HMH hypothesis
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2011/3/30
The article discusses the effect of the, determined by tensile test, non-linear characteristics of AlSi alloys on the value of the shape factor k for the three different sizes of the radius of the rin...
Laser beam interactions with metal matrix AlSi alloy/SiCp composites
Metal matrix composites Heat treatment Laser modelling
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2010/1/19
Purpose: The purpose of the research discussed in this paper was to identify the physical processes that take
place when a focused laser beam acts on a metal matrix composites reinforced with silicon...
CONTINUOUS DRIVE FRICTION WELDING OF CAST ALSI/SIC(P) METAL MATRIX COMPOSITES
friction welding cast AlSi/SiC(p) composites reinforced distribution
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2011/3/10
Continuous drive friction welding of cast AlSi/SiC(p) metal matrix composites in systems AlSi11-AlSi9/SiC/21(p), AlSi9/SiC/21(p)-AlSi9/SiC/21(p) AlSi11/SiC/15(p)-AlSi11/SiC/15(p) have been made.