在Glreeble 1500热模拟机上进行大变形等温压缩实验,研究了23Co13Ni11Cr3Mo钢的高温变形行为.结果表明:流变应力随着变形温度的降低和应变速率的升高而增大,在高温、低应变速率下动态再结晶软化效应显著,在温度为1000℃、应变速率为0.001 s-1时流变应力下降29.6%.23Co13Ni11Cr3Mo钢在温度为1000-1100℃、应变速率为0.01-1 s-1范围内锻造,其动态再结晶充分发生,晶粒细小,随变形参数波动变化平缓.根据实验结果建立了峰值流变应力模型及稳态晶粒尺寸模型,其预测值与实验值吻合得比较好.
参考文献
[1] | LI Junpeng,SHEN Jian,YAN Xiaodong,Microstructure evolution of 7050 aluminum alloy during hot deformation,Transactions of Nonferrous Metals Society of China,20(2),189(2010) |
[2] | S.Anbuselvan,S.Ramanathan,Hot deformation and processing maps of extruded ZE41A magnesium alloy,Materials & Design,31(5),2319(2010) |
[3] | Nengping Jin, Hui Zhang, Yi Han, Wenxiang Wu,Jianghua Chen,Hot deformation behavior of 7150 aluminum alloy during compression at elevated temperature,Materials Characterization,60(6),530(2009) |
[4] | I.Mazurina,T.Sakai,H.Miura,O.Sitdikov,R.Kaibyshev,Effect of deformation temperature on microstructure evolution in aluminum alloy 2219 during hot ECAP,Materials Science and Engineering:A,486(1-2),662(2008) |
[5] | R.Kaibyshev,O.Sitdikov,I.Mazurina,D.R.Lesuer,Deformation behavior of a 2219 Al alloy,Materials Science and Engineering A,334(1-2),104(2002) |
[6] | K.S.Cho, J.H.Choi, H.S.Kang, S.H.Kim, K.B.Lee,H.R.Yang,H.Kwon,Influence of rolling temperature on the microstructure and mechanical properties of secondary hardening high Co-Ni steel bearing 0.28 wt% C,Materials Science and Engineering:A,527(27-28),7286(2010) |
[7] | X.D.Wang,W.Z.Xu,Z.H.Guo,L.Wang,Y.H.Rong,Carbide characterization in a Nb-microalloyed advanced ultrahigh strength steel after quenching-partitioningtempering process,Materials Science and Engineering:A,527(15),3373(2010) |
[8] | K.Mori,K.Akita,Y.Abe,Springback behaviour in bending of ultra-high-strength steel sheets using CNC servo press,International Journal of Machine Tools and Manufacture,47(2),321(2007) |
[9] | Jiquan Zou,Hongyang Jing,Lianyong Xu,Surface crack fracture toughness and HRR fields of ultra-high strength steel,Materials Science and Engineering:A,454-455,467(2007) |
[10] | K.Mori,S.Saito,S.Maki,Warm and hot punching of ultra high strength steel sheet,CIRP Annals-Manufacturing Technology,57(1),321(2008) |
[11] | Z.X.Yin,C.M.Ma,S.X.Li,G.Q.Cheng,Perforation of an ultra-high strength steel penetrated by shaped charge jet,Materials Science and Engineering: A,349(1-2),443(2004) |
[12] | Jie LI,Feng GUO,Zhi LI,Jun li WANG,Ming gao YAN,Influence of sizes of inclusions and voids on fracture toughness of ultra-high strength steel Aermet100,Journal of Iron and Steel Research,International,14(5),254(2007) |
[13] | A.J.Allen,D.Gavillet,J.R.Weertman,SANS and TEM studies of isothermal M2C carbide precipitation in ultrahigh strength AF1410 steels,Acta Metallurgica et Materialia,41(6),1869(1993) |
[14] | L.X.Li,Y.Lou,L.B.Yang,D.S.Peng,K.P.Rao,Flow stress behavior and deformation characteristics of Ti-3Al-5V-5Mo compressed at elevated temperatures,Materials &Design,23(5),451(2002) |
[15] | Hui qin CHEN,Chun xiao CAO,Ling GUO,Hai LIN,Hot deformation mechanism and microstructure evolution of TC11 titanium alloy in β field,Transactions of Nonferrous Metals Society of China,18(5),1021(2008) |
[16] | Hui Zhang,Honggang Zhang,Luoxing Li,Hot deformation behavior of Cu-Fe-P alloys during compression at elevated temperatures,Journal of Materials Processing Technology,209(6),2892(2009) |
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