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DYNAMIC MECHANICAL BEHAVIOURS OF HIGH Mo AUSTENITIC STAINLESS STEEL DURING HOT DEFORMATION

XU Yourong , GU Qing , WANG Deying , Shanghai University of Science and Technology , Shanghai , ChinaGU Jufang , Q U Tiancai , Shanghai Iron and Steel Research Institute , Shanghai , China XU Yourong , Professor , Department of Materials Science , Shanghai University of Science and Technology , Shanghai 201800 , China

金属学报(英文版)

The dynamic mechanical behaviours of super low carbon high Mo austenitic stainless steel (00Cr20Nil8Mo6CuN)during hot deformation have been studied by using Formaster-Press hot working simulator. The hot deformation equation, as well as the relationship between peak strain, peak stress and Zener-Hollman parameter, together with the deformation activation energy have been resulted through the experiments.

关键词: hot deformation , null , null , null , null

Simulation of Isotopic Angular Effects under Ion Bombardment of a~(92)Mo-~(100)Mo Target

Liping ZHENG (Shanghai Institute of Nuclear Research , Chinese Academy of Sciences , Shanghai 201800 , China)Risheng LI and Shuyou LI(Lab. of Atomic Imaging of Solids , Institute of Metal Research , Chinese Academy of Sciences , Shenyang 110015 , China)

材料科学技术（英文）

Under 5 keV Ar ion bombardment of a 92Mo-100Mo target, we have investigated isotopic angular effects by means of the static and the dynamic Monte Carlo programs. Our calculated results are in quantitative agreement with the measured and other calculated results. The conclusion consistences among theories. simulations and measurements are also discussed.

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EMISSION M■SSBAUER SPECTROSCOPY OF NiTi SHAPE MEMORY ALLOY

Y G. Li and CS. Xue (Institute of Semiconductor Research , Shandong Normal University , Jinan 250014 , China)G.L. Zhang(Shanghai Institute of Nuclear Research , The Chinese Academy of Sciences , Shanghai 201800 , China )

金属学报(英文版)

The emission Mssbauer Spectroscopy in cotnbination with transmission electron microscope was used to study NiTi shape memory alloy. The damage and the precipitated phase in NiTi alloy have heen discussed.

关键词: emission m■ssbauer spectroscopy , null

Fluence Dependence of Mean Sputter Depth for Bombarded Pt-Cu and ~(10)B-~(11)B Binary Materials

Liping ZHENG(Shanghai Institute of Nuclear Research , Chinese Academy of Sciences , Shanghai 201800 , China)(To whom correspondence should be addressed)Risheng LI(Laboratory of Atomic Imaging of Solids , Institute of Metal Research , Chinese Academy of Sciences

材料科学技术（英文）

The mean sputter depth depends on the surface composition gradient during ion implantation.For the high fluence ion implantation into a Pt-Cu alloy, the surface composition gradient of Cu is so large that the difference in mean sputter depth between Pt and Cu, is significant. However, for the high fluence ion implantation into 10B-11B isotope mixture, the surface composition gradient of 10B is so small that the difference in mean sputter depth between 10B and 11B is insignificant.

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Preparation and Characterization of Sol-gel Derived CH_3SiO_(3/2)-SiO_2 Thick Film

Bing CAO and Congshan ZHU(Shanghai Institute of Optics and Fine Mechanics , Chinese Academy of Sciences , Shanghai 201800 , China)

材料科学技术（英文）

A large size CH3SiO3/2-SiO2 self sustained film with the thickness ranging from 50 to 1000 μm was prepared through sol-gel method by adopting CH3Si(OC2H5)3 and Si(OC2H5) as precursors.In this paper, the preparation processes of this thick film are discussed in detail and XRD technique was adopted for the identification of oligomer solution. Also, IR and AFM techniques were used to investigate the film structure and surface morphology

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