共搜索到12963条信息，每页显示10条信息，共1297页。用时：0小时0分0秒640毫秒
exhibits honeycomb morphology. After thermal exposure, a brittle oxygen-riched subsurface layer forms, the crack initiates on the surface of the tensile specimens, the fracture is hybrid fracture... temperature titanium alloy; thermal stability; oxygen-enriched layer; fracture morphology ......
Effects of second phases on fracture behavior of Mg-10Gd-3Y-0.6Zr alloy LIN Dan(林 丹)1, WANG Lei(王 磊)1, MENG Fan-qiang(孟凡强)1, CUI Jian-zhong(崔建忠)2, LE Qi-chi(乐启炽)2 1. Key Laboratory for Anisotropy... University, Shenyang 110004, China Received 23 September 2009; accepted 30 January 2010 Abstract: The effects of second phases on the fracture behavior of Mg-10Gd-3Y-0.6Zr alloy were investigated......
to be addressed is the morphology of the fracture surfaces. It is generally accepted that the failure of brittle rock initiates from the tips of cracks because of tensile strength [3-5]. Moreover, crack... by joints and fracture surfaces [7-9]. Because of the importance of the morphology of rock fracture surfaces in defining the mechanical and hydraulic behavior of the rock, a great number of methods have......
at 1 380 ℃. Key words: Mo-Ti-Zr alloy rods; rotary forging; relative density; fracture surface morphology ... rotary forging to deformation amount of 33% at 1 250 ℃. The increase of relative density of Mo-Ti-Zr alloy rods reaches the lowest after rotary forging to deformation amount of 19.2%. The fracture type......
deformation; microstructural evolution; fracture morphology 1 Introduction In the 21st century, the promising materials are thought to be high efficiency, energy saving, and have the minimality to the mass... to investigating the fracture morphology of the samples. Scanning electron microscopy-electron back- scattered diffraction (SEM-EBSD) was utilized to analyze the microstructure and texture of samples......
alloying with Mo and Cr additions. Key words: β-nickel aluminide; eutectic alloy; compressive properties; brittleness; ductility; fracture morphology 1 Introduction NiAl intermetallic alloys have..., a significant diversity in fracture morphology is observed in NiAl-30Cr-4Mo and NiAl-0.3Ru (see Fig.9). The fracture of NiAl-0.3Ru is intergranular (Fig.9(a)), which agrees with the previous......
oxidation; fatigue property; fracture morphology 钛合金是一种密度小,耐腐蚀性好,比强度高的结构和功能材料,具有非常优越的耐高温性能和易钝化性能,被广泛应用于工业生产中,尤其是在航空航天,石油化工,医药等诸多领域[1].TB8钛合金是国家"九五"期间重点科技攻关研制的一种超高强度钛合金,与美国在20世纪90年代研制的钛合金β21S相似,具有良好的抗氧化性能,耐蚀性能...) Abstract: Anodic oxidation of 0.5 mm-thickness TB8 titanium alloy sheet in the electrolyte system with sodium tartrate as film-forming agent was investigated. The microstructures of the fatigue fracture......
; bimodal microstructure; deformation behavior; globularization mechanism; fracture morphology 1 Introduction Ti-6Al-2Zr-1Mo-1V alloy, also known as TA15 alloy, has been widely used in manufacturing...]. As a result, the globularization of the studied alloy at 850 °C was more likely caused by DRX. 3.3 Fracture morphology analysis 3.3.1 Effects of deformation temperature on fracture morphology Figure 13 shows......
of quenching water temperature on the microstructure,fracture morphology and mechanical properties of ZL210A alloy was studied by tensile tests, optical microscopy, scanning electron microscopy... temperature; microstructure; mechanical property; fracture morphology ZL210A铸造铝合金是我国铸造工作者在俄BA10合金的基础上成功研制出的一种适合我国国内生产应用的典型的可热处理强化的高强度铸造Al-Cu-Mn系铝合金,热处理对其力学性能有着决定性的影响[1].ZL210A合金不含Ag和V等稀贵金属,对杂质限量也较ZL205A等合金宽,在保证......
An evaluation analysis method for corrosion morphology characterization based on Gaussian filter ZHANG Peng (张 鹏)1, GUO Bin (郭 斌)2, CHENG Shu-kang (程树康)3 1. School of Materials Science... that the corrosion characterization of copper in thermal flow system is pitting corrosion. The morphology characterizations of metal corrosion process can be described using the proposed surface model. The generation......
