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;Schematic diagram of binder damage in multi-ligament zone of WC-Co alloy[24] 2.1 裂纹断裂路径 在研究合金断裂机理的过程中,很多研究者都同时研究其断裂路径.GURLANA[25]认为无论是低Co还是高Co合金,断裂都有避开Co相的倾向,多发生在碳化物相和WC-WC边界上.当WC晶粒尺寸不超过1~2 μm时,裂纹仅分布在...带中也会出现微孔和空洞[31].钝的裂纹尖端和内部孔隙的长大和合并会导致韧带破裂,裂纹失稳.韧带区的长度大致为合金碳化物平均自由程的5倍,EVANS等[32]将其称为多韧带区. 图2 WC-Co裂纹传播路径[28] Fig. 2 Crack propagation path of WC-Co alloy[28] 2.2 硬质合金的疲劳裂纹扩展模式 硬质合金的疲......
stave and cast steel stave and thermal stress distribution of copper steel interface were investigated through establishing a mathematical model of heat transfer and thermal stress distribution... 30 ℃ higher than that of copper stave and 520 ℃ lower than that of cast steel stave. Copper steel composite stave has the same heat transfer performance as copper stave. The normal stress σz......
]. Journal of Inorganic Materials, 1999, 14(5): 745-750. [8] ADAMS A G, RAHAMAN M N, DUTTON R E. Microstructure of dense thin sheets of γ-TiAl fabricated by hot isostatic pressing of tape-cast monotapes[J]. Materials Science and Engineering A, 2008, 477(1): 137-144. [9] RAHAMAN M N, DUTTON R E SEMIATIN S L. Fabrication of dense thin sheets of γ-TiAl by hot isostatic pressing of tape-cast monotapes[J......
析,可以获得临近合金成分的相平衡关系.扩散偶法对每一个扩散偶的表征分析可以获得扩散偶成分范围内的相平衡关系.区别于平衡合金法和扩散偶法需要制备多个试样的特点,扩散多元节方法可以在一个试样上实现比前两者更大成分范围内的相平衡关系,是一种高通量的合金制备和相图测定方法. 1.1 平衡合金法(Equilibrated alloy) 平衡合金法是一种传统的并被广泛采用的相图测定方法.合金法的一......
, surface morphology and magnetic properties of cobalt-phosphorus alloy films. LI et al [15] reported that 2,2’-dipridyl was used as additive in electroless copper bath. The color of deposit changes from......
adsorption on the steel. This is proven from the corrosion rate values. The observation can also be attributed to the deposition of TTD cations on the alloy in the form of white precipitates as a result......
help in magnetic measurements. References [1] MASSALSKI T B. Binary alloy phase diagrams [M]. 2nd ed. Materials Park, OH: ASM International, 1990. [2] IVANOVSKY A L, MEDVEDEVA N I, MEDVEDEVA J E......
. A highly sensitive and stable electrochemical sensor for simultaneous detection towards ascorbic acid, dopamine, and uric acid based on the hierarchical nanoporous PtTi alloy [J]. Biosensors......
R, TAMURA K, YASUDA T, KOINUMA H. Band gap engineering based onMgxZn1-xOandCdyZn1-yOternary alloy films [J]. Applied Physics Letters, 2001, 78: 1237-1239. [9] GHOSH M, RAYCHAUDHURI A K. Structure......
alloy [J]. Transactions of Nonferrous Metals Society of China, 2011, 21(3): 581-587. [36] ZHOU Shao-yun, LI Xin-hai, WANG Zhi-xing, GUO Hua-jun, PENG Wen-jie. Effect of activated carbon and electrolyte......
