| 2 | HOT DUCTILITY OF 304HC STAINLESS STEEL AND THE MODEL OF RESISTANCE TO DEFORMATION显示文摘The ductility map of 304HC stainless was determined by using the Gleeble-1500 dy-namic thermal-mechanical simulator. The effect of Cu on the hot ductility of 304HCstainless steel was analyzed and the mathematical model of resistance to deformationwas established. The microstructure, inclusion and fracture surface were studied byusing the method of microstructure analysis, scanning, energy spectrum and electronmicroscope. The results show that Cu has effect on the hot ductility, and the hotductility of 30,4HC stainless steel decrease with the increase of content of Cu. Thedeformation temperature also has much effect on the hot ductility, the suitable defor-mation temperature are 1100-1200℃. The reason of it is that the Cu rich chemicalcompounds were precipitated from austenite phase during cooling. The Cu rich chem-ical compounds are brittle substance such as Cu2S, Cu2O and ε-Cu etc. | H.S.Di G.Z.Cui G.D.Wang X.H.Liu | 2003 | Acta Metallurgica Sinica(English Letters)2003，16，2： | 4 |
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