Fractography相关论文
预测金属合金的疲劳寿命是冶金和机械工程领域中最重要的研究之一.在高温下,表面氧化对合金的疲劳强度和延展性有重要影响.本文研......
Effect of Reduction on Bonding Interface of Hot-rolled Wear-resistant Steel BTW1/Q345R Cladding Plat
Wear-resistant cladding plates consisting of a substrate (Q345 R) and a clad layer (BTW1) were bonded through hot rollin......
Study on microstructure, tensile properties and fractography of A356 aluminum alloy produced by expe
The microstructure, tensile properties and fractography of A356 aluminum alloy with As-cast and T6 conditions obtained u......
Analyses of p-S-N Curve and Fracture Morphology of Die-Casting Magnesium Alloy AZ91D Containing Misc
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The influence of temperature on the resistance to rapid crack propagation of a semi-crystalline bio-based polymer was st......
Metal matrix nanocomposites (MMnCs) comprise a metal matrix filled with nanosized reinforcements with physical and mecha......
Fractographic analysis of the overload effect on fatigue crack growth in 2024-T3 and 7075-T6 Al allo
The effect of single overload on the fatigue crack growth in 2024-T3 and 7075-T6 Al alloys was analyzed. Fatigue tests u......
Fractography relies on topographic features on the fracture surfaces to deduce the stress state of the failed component.......
As promising light-weight and high-performance structure components, large-diameter thin-walled(LDTW) Ti–6Al–4V titani......
High-strength Al-Cu-Mg-Ag-Sm alloy was fabricated and subjected to single-stage aging and pre-aging (two-stage aging).Ef......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
Bulk metallic glasses(BMGs)have attracted considerable attention in the last few decades particularly triggered by their......
An Investigation on the Microstructure of Multi-phase Composite Coatings Synthesized by Plasma Spray
Multi-phase self-reaction composite (denoted as MPc) coatings containing ceramic and metal multi-phases were fabricated ......
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Effects of thermomechanical treatments on the microstructures and mechanical properties of GTA-welde
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
该文从挂篮荷载计算、施工流程、支座及临时固结施工、挂篮安装及试验、合拢段施工、模板制作安装、钢筋安装、混凝土的浇筑及养生......
MECHANICAL PROPERTIES AND CURING KINETICS OF EPOXY RESINS CURED BY VARIOUS AMINO-TERMINATED POLYETHE
为探究吕家坨井田地质构造格局,根据钻孔勘探资料,采用分形理论和趋势面分析方法,研究了井田7......
An Investigation on the Microstructure of Multi-phase Composite Coatings Synthesized by Plasma Spray
Multi-phase self-reaction composite (denoted as MPc) coatings containing ceramic and metal multi-phases were fabricated ......
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采用恒载荷试验法及慢应变速率试验法(SSRT)研究了渗铝304澳氏体不锈钢在沸腾42%MgCl2溶液中的应力腐蚀开裂(SCC)性能,分析了渗铝不锈钢应力腐蚀开裂机理,讨......
通过柱面对柱面的接触方式,对35CrMoA钢在拉扭复合载荷作用下的低周微动疲劳特性进行研究,并采用光学显微镜和扫描电子显微镜对微......
研究了PDC—Ⅱ/连续单向碳纤维复合材料的弯曲强度、层间剪切强度、冲击强度与树脂含量的关系,并观察了层间剪切和冲击破坏试样断......
文中阐述了图像分析技术在新材料研制中的应用,具体介绍在塑料磁体、聚氨脂泡沫塑料研制中利用该技术对多相体系中分散相形态进行......
在Gleeble-2000热模拟机上,针对Q345C钢连铸坯,进行了高温热塑性测试.分析了Q345C钢试样的断口性质及显微组织与塑性的关系.研究了......
使用标准的拉伸试验与冲击试验测量了两种真空开关管用CuCr(75/25)触头材料的力学性能,并用光学显微镜和配有X-射线能谱仪的扫描电......
采用光镜,电镜(SEM,TEM)等对Cr18Mo2高纯铁素体不锈钢焊接热影响区粗晶区(CGHAZ)的组织结构,析出物和断口形态进行了研究,结果表明,Cr18Mo2铁素体钢HAZ在经受焊接加热和冷......
采用熔融共混法制备了2种硅藻土填充聚丙烯(PP/硅藻土)复合材料PP/281和PP/700,采用扫描电子显微镜观察了冲击断口形貌,运用图像处理......
本文利用扫描电子显微镜对环氧复合材料层合板层间破坏断口形貌的观察,分析了解理台阶的形成过程,并讨论了影响解理台阶形态的因素。......
通过爆管管样的宏观检查、材质检验、垢层分析、断口分析以及综合分析等对某DG440/13.7-Ⅱ2型循环流化床(CFB)锅炉水冷壁爆管的原......
本文利用超声波断口图技术对不同类型的PMMA试件进行了测试。这些试件为承受均匀拉伸或三点弯曲变形的带单侧贯穿裂纹的PMMA板,其中......
针对天然气站往复式压缩机活塞的断裂事故,运用失效分析方法,开展了活塞断口扫描电镜分析、能谱和金相分析。根据断口形貌的电镜和......
一种进口烘缸在使用过程中发生爆炸,通过现场多方勘查和调研分析,利用OM、SEM、微机控制电液伺服万能试验机、冲击试验机等多种检测......
金属材料断口分维佯谬的实质在于Fractal图形的面积效应。该效应可用周长与面积方根的比例参数描述,并以此说明了材料韧性与分维呈相反变化......
<正> 聚苯硫醚自一百年前第一次被合成以来虽已被广泛地研究,但对其结构的研究还是近年来的事。Tabor等人用X-射线衍射测定了聚苯......
某型航空发动机压气机四级转子叶片是故障多发叶片.对叶片典型失效件进行了断口分析,发现叶片故障是由于叶片表面发生腐蚀导致疲劳......
本文观察了321奥氏体光盘钢在沸腾的42%MgCl2溶液中的应力腐蚀行为。...
本文对大断面球铁断口进行了宏观分类、讨论断口宏观、微观形貌与组织及力学性能之间的关系,研究了灰斑和黑斑断口产生的机制。......
研究了氮化硅/碳化硅纳米复合陶瓷经三点弯曲试验后的显微组织和断口形貌.结果表明,随着SiC纳米粉含量的增加,断口从沿晶断裂向穿......
介绍用超声波Fractography技术测量高速扩展裂纹尖端准微观区域内材料的剪切模量的实验原理和方法.本方法目前尚限于在脆性高分子......
研究了加热处理对疲劳预裂聚碳酸酯(PC)试样断裂韧性的影响。两组紧凑拉伸(CT)试样经疲劳法引裂后,一组经过加热处理,另一组未经加热处理,然后......
In the present study,an Al/Cu/Mg multi-layered composite was produced by accumulative roll bonding(ARB)through seven pas......
通过宏观检验、化学成分、力学性能、金相组织及断口分析,得出炉管爆裂主要原因是短期过热。据此,提出了预防措施。......
本文用宏观分析与微观分析相结合的方法,对几种典型低合金高强钢的插销试棒断口形貌进行了分析。结果表明:钢材的Pcm值及插销试验时的承......
研究了再结晶状态的相同成分、不同织构取向的两块新锆合金板材在不同的实验条件下的抗碘致应力腐蚀性能.用直流电位降法动态监测......
本文利用扫描电镜对含Mn$夹杂物和含ZrN夹杂物的D6AC钢的冲击断口形貌进行了观察与分析;利用数字图象法测定了试样的断口分形维数,......
利用超声波断口图技术对不同类型的带单侧贯穿裂纹的PMMA试件进行了测试,得到试件断口上的超声波线。基于ANSYS软件的有限元分析,......
利用SEM观察了硅酸铝短纤维/铝合金复合材料的拉伸断口,发现陶瓷增强相主要有三种破坏形式;当纤维沿拉伸方向的有较长径比超过临界值时纤......
In this paper, smooth specimens of three aluminum alloys: AA 2219-T8, AA 2519-T8 and AA 2624-T351, were subjected to the......