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100 h后截面腐蚀形貌 Fig .7 Cross-section morphology of SLM fabricated Inconel 718 alloy after 100 h high-temperature corrosion test 图8 SLM成形Inconel 718合金纵截面元素分布图 Fig. 8 Element... and columnar crystals during high-temperature corrosion of Inconel 718 alloy fabricated by SLM 3 结论 1) 在高温腐蚀过程中,SLM态合金腐蚀质量损失速率远大于其他状态的,经过75 h的腐蚀后,质量损失速率达到18 mg/cm3,是时效热处理的2.5倍,标准热处理的9倍.而经标准和均匀化热处理的合......
Rare metals preparation by electro-reduction of solid compounds in high-temperature molten saltsWei Xiao,Di-Hua WangSchool of Resource and Environmental Sciences, Hubei International Scientific and Technological Cooperation Base of Sustainable Resource and Energy, Wuhan University摘 要:Direct electro-reduction of solid compounds in molten salts......
of Solidification Processing, Northwestern Polytechnical University2. State Key Laboratory of Solid Lubrication, Lanzhou Institute of Chemical Physics, Chinese Academy of Sciences摘 要:The tribological properties of AlCoCrFeNi and AlCoCrFeNiTi0.5 high entropy alloys under gear oil and multiply alkylated cyclopentanes(MACs)lubrication condition have been studied.The......
Novel cobalt base superalloy and its high-temperature flow behaviorTANG Chunfeng~(a,b) PAN Feng~a QU Xuanhui~b DUAN Baihua~b WANG Tianjian~b HE Xinbo~b ~a Laboratory of Advanced Materials,Department... id="ChDivSummary" name="ChDivSummary"><正>A novel cobalt base superalloy containing titanium and aluminum was investigated through metallography,tensile test,and high-temperature isothermal......
NUMERICAL SIMULATION OF INDUCTION SKULL MELTING PROCESS FOR TITANIUM-ALUMINIUM BASE ALLOY Y.Y.Chen1,Z.Y.Chen1,Q.Shu1,F.T.Kong1,L.J.Xu1 (1.School of Materials Science and Engineering, Harbin... for simulating temperature field of melting process was developed with finite element method. The temperature field of the melting process for Ti-47Al-2Cr-2Nb alloy was calculated. During melting period......
识码: A High-temperature creep behavior of NiAl-25%Cr alloy ZHANG Guang-ye1, 2, GUO Jian-ting1, ZHANG Hua2 (1. Institute of Metal Research, Chinese Academy of Sciences, Shenyang 110016, China; 2... matrix during creep. The second phase most likely deforming along with the Ni matrix is the γ'-Ni3Al and α-Cr phase. Key words: NiAl-25Cr alloy; intermetallics; high-temperature creep 迄......
diffusivity of Cu in Sn at room temperature can be as high as 1.23×10-7 m2/s with an apparent activation energy for diffusion of 0.34 eV (32.8 kJ/mol), and the activation energy for grain boundary..., VANDENBREG J M. Room-temperature-diffusion studies of Au-Sn thin-film couples [J]. Thin Solid Films, 1981, 84: 185-196. [18] SUH J O, TU K N, TAMURA N. Preferred orientation relationship between......
, effective strain field, velocity field and temperature field during the extrusion process were discussed and the metal flow in welding extrusion was analyzed. The simulation results show... and a good surface finish than any other parts. Thus, it is very important to know the detail mechanics, velocity, temperature, stress and strain fields of moving materials. Such information is very......
such as scratches or cracks. The adsorbed porous ceramic solid lubricant film works as both lubrication and self-lubrication. The size of solid lubricant particles has an influence on the initial friction coefficient. The solid BN powder does not play the role of lubrication. As a result it can not be employed alone as a solid lubricant in hot incremental forming. When the temperature is lower than 500......
coefficient and oil film flash temperature are the smallest. Increasing modification coefficient improves the lubrication performance continuously but intensifies the engage-in and tooth-change impact...) and (c), at the last point of Zone II and the recess point (C- and D, respectively), the value of the flash temperature was high, while the minimum oil film thickness was small, which could easily......
