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, Changsha 410083, China) Abstract: The stainless steel foam with 3-D open-cell network structure were prepared by vacuum sintering. The effects of sintering temperature and soaked time on the apparent density, open porosity, bending strength and oxidation resistance performance of the stainless steel foam were investigated. The experimental results show that with the increase of the sintering temperature......
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temperature. The sample sintered at 1 440 ℃ demonstrates the optimal performance. Its relative density, bending strength, tensile strength, elongation and cross section shrinkage ratio are 99.2%, 1 920... of sintering temperature, the fracture morphology of tungsten alloy is transformed from intergranular brittle fracture to transgranular brittle fracture, dimple ductile fracture, bonding phase tearing......
and deformation of the workpiece can be predicted precisely based on ANSYS software. The simulated results show that the temperature of the divided element decreases faster at the edge than...Numerical Simulation of Temperature and Stress Fields of Ti-Alloy Thin-well Barrel during Quenching Process LI Yan-zeng1,WU Kun1,YAN Mu-fu1 (1.School of Materials Science and Engineering, Harbin......
dispersive spectrum(EDS) and transmission electron microscope(TEM) were used to study the microstructure evolution during high temperature deformation. The results show that, the peak stress value... the interaction between dislocation and precipitated particles inside the twinning lamellar. Key words: Ti-6Al-4V alloy; scandium; high temperature deformation; strengthening ......
硬质合金真空烧结郑树林株洲硬质合金厂摘 要:本文讨论了硬质合金真空烧结的工艺制度原则及真空烧结炉的现状和发展.关键词:硬质合金;真空烧结;......
in annealing temperature range of 150-300 ℃. Then the effects of the different annealed microstructures on high-temperature deformation behavior were further studied. The results indicate that the initial... temperature on the microstructure and deformation behavior at elevated temperature for the fine-grained 5083 Al alloy are investigated. 2 Experimental The commercial 5083 (H112 condition) Al alloy......
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Effect of deformation temperature on microstructures and properties of 7075/6009 alloy LI Yuan-yuan(李元元), ZHENG Xiao-ping(郑小平), ZHANG Wei-wen(张卫文), LUO Zong-qiang(罗宗强) School... of the transition layer reduces from millimeter order to micrometer order. The mechanical properties of the composite plate increase with the increase in deformation temperature from 543 K to 673 K. The best......
