Investigation on hot deformation behavior of AISI T1 high-speed steel
作者： Jiantao Liu , Hongbing Chang , Ruiheng Wu , T.Y Hsu , Xueyu Ruan
DOI: 10.1016/S1044-5803(00)00071-1
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摘要: Abstract The hot deformation behavior of AISI T1 (18W–4Cr–1V) high-speed steel has been investigated in the temperature range 950–1150°C at strain rates 0.001–10 s−1 and true strains 0–0.6. results show that activation energy for deformation, Q, decreases with increase below 1000°C, it changes slightly above 1000°C. Metallography shows there are fine carbide particles precipitated grains, these lead to dispersion hardening an value Q. There fewer 1000°C than it. Zener–Hollomon parameter hyperbolic sine function used predict flow stress as influenced by rate different levels.
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