研究了双相不锈钢2205在1000～1200℃温度、应变速率0.01～30s~(-1)下压缩变形的热加工行为.讨论了该条件下的应力应变曲线的特征并根据sinh-Arrhenius方程计算了其形变激活能为519KJ/mol.通过对试样的金相及TEM观察,讨论了双相不锈钢中的奥氏体相和铁素体相在热变形中的回复、再结晶机制.
The duplex stainless steel 2205 was subjected to compression testing over the range of temperature from 1 000 to 1200℃ and strain rates from 0.01- 30 s~(-1) to their hot working behavior. The characterizes of the flow curves were investigated and the activation energy of 519 KJ/mol was calculated by sinh-Arrhenius equation. The optical microscopy and Transmission electron microscopy (TEM) observation were employed to study the recovery and recrystallization behavior in both austenite and ferrite in different hot working condition.
参考文献
| [1] | K(o)mi J I;Karjalainen L P.Effect of Hot Working Parameters on Hot Ductility of a Ferritic Austenitic Stainless Steel[A].Florence,Italy,1993:2315. |
| [2] | L. DUPREZ;B.C. De COOMAN;N. AKDUT .Flow Stress and Ductility of Duplex Stainless Steel during High-Temperature Torsion Deformation[J].Metallurgical and Materials Transactions, A. Physical Metallurgy and Materials Science,2002(7):1931-1938. |
| [3] | E. EVANGELISTA;H.J. McQUEEN;M. NIEWCZAS .HOT WORKABILITY OF 2304 AND 2205 DUPLEX STAINLESS STEELS[J].Canadian Metallurgical Quarterly,2004(3):339-353. |
| [4] | Ryan N D;McQueen H J;Lula R A.New Developments in Stainless Steel Technology[M].Metals Park:ASM,1985:293. |
| [5] | Cabrera J M;Mateo A .Hot Deformation of Duplex Stainless Steels[J].Journal of Materials Processing Technology,2003,143-144:321. |
| [6] | Karjalainen L P;Koskiniemi J A;Liu X D.Static Recrysta llisation in Austenitic and Ferritic Stainless Steels Investigated by Stress Relaxation Method[A].Hamilton,Ontario,Canada,1995:861. |
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