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Effect of local chilling on morphology of primary α(Al) in semi-solid A356 alloy LIU Zheng(刘 政)1, 2, MAO Wei-min(毛卫民)2, ZHAO Zhen-duo(赵振铎)2 1. Faculty of Material and Chemical Engineering.... The effect of chilling by the rod on morphology and size of primary α(Al) in A356 was researched. The results indicate that the chilling by the rod remarkably affects the morphology and the size of primary......
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RELATIONSHIP BETWEEN J-INTEGRAL AND FRACTURE SURFACE AVERAGE PROFILE K.Tanaka1,S.F. Xue2,Y.G. Cao2 (1.Department of Mechanical Systems Engineering, Toyama Prefectural University, Toyama 939-0398... that led to the formation of cracks in materials, a novel method that only considered the fracture surfaces for determining the fracture toughness parameters of J-integral for plain strain was proposed......
succeeding heat-treatment at 650℃, but less B19′ phases after 750℃ treatment are found. The fracture morphology of the film heated at 550℃ shows a flat pattern with more steps, whereas that of the film...; sputter deposition; crystallization; martensitic transformation; fracture morphology; nano-hardness CLC number: TG139. 6 Document code: A 1 INTRODUCTION Shape memory thin film is regarded......
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-temperature tensile properties and fracture morphology analysis of commercially pure titanium SU Juan-hua1, 2, ZHOU Tie-zhu1, 2, REN Feng-zhang1, 2, WEI Shi-zhong1, 2, CHEN Zhi-qiang3 (1. School of Materials..., and the ductility increases, resulting in the quasi-cleavage fracture as the major failure mechanism. Key words: commercially pure titanium; high-temperature tensile; fracture morphology; formation......
A DUCTILE FRACTURE CRITERION BASED ON THREE-DIMENSIONAL VOID MODEL X.H.Dong1,J.K.Huang1 (1.National Die & Mould CAD Engineering Research Center, Shanghai Jiaotong University, Shanghai 200030,China) Abstract:A fracture criterion derived from a microscopic point of view is proposed and has proved to be effective in the analysis of uniaxial tension. On the one hand, a method of predicting......
and tempering, the surface compressive stress increases to the highest. Key words: cemented carbide; heat treatment; microstructure; fracture morphology; combination property Foundation item: Project...;Fracture morphologies of each specimen 表4 不同热处理下ZL40.5硬质合金的性能 Table 4 Performance of ZL40.5 cemented carbide under different heat treatment 2.5 残余应力分析 由于硬质合金淬火,深冷时具有很大的冷却速度,且Co相膨胀系数是......
Correlation between Porosity and Fracture Mechanism in High Pressure Die Casting of AM60B AlloyX.Li1,S.M.Xiong1,2,Z.Guo11. School of Materials Science and Engineering,Tsinghua University2. State Key... of AM60B alloy. In situ tensile deformation was performed to observe the change of porosities and their influences on crack initiation,propagation and subsequent fracture of specimen. Results showed......
Effect of Bainite Morphology on Mechanical Properties of the Mixed Bainite-martensite Microstructure in D6AC SteelKhodamorad Abbaszadeh,Hassan Saghafian,Shahram KheirandishSchool of Metallurgy and Materials Engineering, Iran University of Science and Technology , Tehran 1684613114, Iran摘 要:The effect of bainite morphology on mechanical properties......