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using free forging as a secondary process. Products from two processes (with and without free forging) were compared in terms of microstructure, transformation temperature and superelasticity. The results showed that, free forging effectively improved the tensile and shape-memory properties. Ductility increased from 6.8% to 9.2% after forging. The maximum strain during superelasticity increased......
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Effects of Forging and Heat Treatments on the Microstructure and Oxidation Behavior of 316LN Stainless Steel in High Temperature WaterYueling Guo1,En-Hou Han1,2,Jianqiu Wang21. National Center... forging,was characterized by Vickers hardness(HV) testing and electron back scattering diffraction(EBSD).The oxide film formed on samples after immersion in borated and lithiated water at 583.15 K......
Controlled Rolling and Cooling Process for Low Carbon Cold Forging Steel李壮School of Materials Science and Engineering,Shenyang Institute of Aeronautical Engineering摘 要:Effect of controlled rolling and cooling process on the mechanical properties of low carbon cold forging steel was investigated for different processing parameters of a laboratory hot......
Trans. Nonferrous Met. Soc. China 20(2010) s954-s960 Metal flow and die wear in semi-solid forging of steel using coated dies L. KHIZHNYAKOVA1, M. EWERING2, G. HIRT1, K. BOBZIN2, N... quality from high strength steels in one forging step. The thixoforging process parameters such as billet temperature, temperature distribution after reheating, argon gas pressure, transportation time......
Application of geometric midline yield criterion to analysis of three-dimensional forging ZHAO De-wen(赵德文), WANG Gen-ji(王根矶), LIU Xiang-hua(刘相华), WANG Guo-dong(王国栋) State Key Laboratory...-dimensional forging. The linear yield criterion expressed by geometric midline of error triangle between Tresca and Twin shear stress yield loci on the p-plane, called GM yield criterion for short......
Effect of Zn/Mg/Cu Additions on Hot Cracking Tendency and Performances of Al-Cu-Mg-Zn Alloys for Liquid Forging孙永根1,杜之明1,SU Yanni2,CHENG Yuansheng2,LIU Yongwang21. National Key Laboratory... the process of liquid forging, a host of hot cracking defects were found in the Al-CuMg-Zn aluminum alloy. Therefore, mechanical tests and analyses by optical microscope, scanning electron microscope, and X......
Tempering stability of Fe–Cr–Mo–W–V hot forging die steelsYuan-ji Shi,Xiao-chun Wu,Jun-wan Li,Na MinSchool of Materials Science and Engineering, Shanghai University摘 要:The tempering stability of three Fe–Cr–Mo–W–V hot forging die steels(DM, H21, and H13) was investigated through hardness measurements and transmission electron microscopy(TEM......
; 文献标志码:A 文章编号:1672-7207(2011)07-1967-06 Simulation and experiment research on forging flow lines for aluminum alloy wheel-hub ZHANG Yu-xun, YI You-ping, LI Yun, HUANG Shi-quan (School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China) Abstract: The simulation of forging flow lines for aluminum alloy......
; 文章编号:1672-7207(2008)05-1023-06 Forging speed’s response characteristic of moving beam drive system for 300 MN die forging hydraulic press HUANG Chang-zheng1, TAN...: Based on the compressibility, viscosity resistance and the working house system’s deformation etc, flow equations of distribution spool, hydraulic tube and fluid cylinder for 300 MN die forging......
