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Comparison of RSM with ANN in predicting tensile strength of friction stir welded AA7039 aluminium alloy joints A.K.LAKSHMINARYANAN,V.BALASUBRAMANIAN Centre for Materials Joining & Research... in deciding the weld quality. Two methods, response surface methodology and artificial neural network were used to predict the tensile strength of friction stir welded AA7039 aluminium alloy. The experiments......
Improvement of Creep and High Temperature Tensile Properties by Adding W to Orthorhombic Ti2AlNb-Based Alloys Fang Tang1,Masuo Hagiwara1,Satoshi Emura1 (1.National Research Institute for Metals... specific strength. In this paper, with the purpose of enhancing the mechanical properties, W is added to O alloys as the quarternary alloying element. The effects of W additive on the high temperature......
Direct Comparison between Tensile Strength and Flexural Strength of Ceramic/Metal Brazing Joint冼爱平,斯重遥摘 要:<正> A design of the sandwich joint,steel/ceramic/steel,was made for direct comparison be-tween tensile and flexural strength ofceramic/metal joint.The flexural strength is abouttwice as high as the tensile strength for the samejoint.The......
closed-cell aluminum foam was studied and the influence of relative densities on the tensile strength and elastic modulus was also researched. The results show that the fracture surfaces of Al-Si closed-cell aluminum foam display quasi-cleavage fracture consisting of brittle cleavages and ductile dimples. The tensile strength and elastic modulus are strictly affected by the relative density of Al......
study based on blind data theory and fuzzy interval estimation. 60 granite specimens are first tested, the compressive strength interval and tensile strength interval are [103.68, 219.61] and [7.53, 11.86] MPa, while the tested mean values of compressive strength and tensile strength are 152.86 and 10.14 MPa, the credibilities are less than 58.4% and around 70.4%, respectively, the credibility......
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Influence of yield-to-tensile strength ratio (Y/T) on failure assessment of defect-free and corroded X70 steel pipelineZHANG Shun-hu(章顺虎)1, 2, ZHAO De-wen(赵德文)1, WANG Xiao-nan(王晓南)2(1. State Key... corrosion defects is a function of the Y/T, pipe geometry t0/D0 and engineering tensile strength, and increases as Y/T or t0/D0 increases; whilst the burst pressure of corroded X70 pipe decreases......
Effect of cold-rolling on tensile strength of SiCw/Al compositeZHANG Wenlong , ZHANG Mu ,GU Mingyuan ,WANG Dezun , and YAO Zhongkai1) State Key Lab of MMCs, Shanghai Jiaotong University, Shanghai.... Some of the rolled composites were recrystallization annealed to remove the work hardening of matrix alloy. The tensile strength of the rolled and annealed SiCw/Al composites was examined......
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process. After T6 treatment and extrusion treatment, elastic modulus, tensile strength and elongation of 14%TiB2p/6061Al composites are 107 GPa, 364.1 MPa and 9.25%, respectively. While those of 20.... In addition, crystal grains are refined in the matrix of extruded composite, which shows obvious improvement of strength and elongation. 3.2 Mechanical properties 3.2.1 Tensile curve Fig.4......
