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PHOSPHORUS GRAIN BOUNDARY SEGREGATION IN A P-DOPED 2.25Cr1Mo STEEL S.H.Song1,D.D.Shen1,J.LIU1,L.Q.Wen2,Z.X.Yuan1 (1.The Hubei Province Key Laboratory of Ceramics and Refractories, Wuhan University of Science and Technology, Wuhan 430081, China;2.School of Materials Science and Engineering, Nanjing University of Aeronautics and Astronautics,Nanjing 210016, China) Abstract:Grain boundary......
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EFFECTS OF MODIFICATION OF THE CARBIDE CHARACTERISTICS THROUGH GRAIN BOUNDARY SERRATION ON CREEP-FATIGUE LIFE IN AUSTENITIC STAINLESS STEELS S.W.Nam1,H.U.Hong2,K.J.Kim1,K.S.Min3 (1.Dept...., 449-771, Korea) Abstract:Modification of the carbide characteristics through the grain boundary serration is investigated, using an AISI 316 and 304 stainless steels. In both steels, triangular......
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and 110.6 kJ/mol, respectively. At temperature below 473 K, mainly intragranular sliding contributes to superplastic flow. At 523 K, grain boundary sliding is the dominant deformation mechanism... sliding; grain boundary sliding 1 Introduction Mg alloys are becoming increasingly attractive for potential use in a wide range of engineering applications including aerospace and automobile industries......
on an actual IRB-120 robot manipulator. Key words: robot manipulator control; IRB-120 robot; sliding mode control; sliding mode control with boundary layer; inverse dynamic control Cite this article... are created in the controller input, and these oscillations are known as chattering [28]. To reduce chattering, the control input can be smoothed and softened by defining a boundary layer around the sliding......
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