通过对2205双相不锈钢在铸态、锻态下流变曲线与组织的分析,研究了组织对热加工性能,特别是流变行为、变形抗力及失效特征的影响,讨论了双相不锈钢热加工开裂的机理及其影响因素.结果表明:在相同的热变形条件下,锻态材料较铸态材料具有良好的热加工性能,流变曲线上呈现出的"稳态区"更明显,开裂情况也得到显著改善,但变形抗力有所增加.两相不同的变形机制及初始K-S取向关系、硬且粗大带尖角的奥氏体的不均匀分布是造成双相不锈钢热加工开裂的重要因素.
参考文献
| [1] | J(o)rg K;Jacques F;Günter G .Deformation and annealing behavior of nitrogen alloyed duplex stainless steels.Part Ⅰ:rolling[J].ISU International,2003,43(11):1781-1787. |
| [2] | Ravindranath K;Malhotra S N .The influence of aging on the intergranular corrosion of 22 chromium-5 nickel duplex stainless steel[J].Corrosion Science,2005,37(01):121-132. |
| [3] | Balancin;Hoffmann W A;Jonas J J .Influence of microstructure on the flow behavior of duplex stainless steel at high temperatures[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2000,31:1353-1364. |
| [4] | Reis G S;Jorge Jr A M;Balancin O .Influence of the microstrncture of duplex stainless steels on their failure characteristics during hot deformation[J].Materials Research,2000,3(02):31-35. |
| [5] | Pi(n)ol-Juezl A;Iza-Mendia A;Gutierrez I .δ/γ interface boundary sliding as a mechanism for stain accommodation during hot deformation in a duplex stainless steel[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,2000,31:1671-1677. |
| [6] | Evangelista E;Mcqueen H J;Niewczas M et al.Hot workability of 2304 and 2205 duplex stainless steel[J].Canadian Metallurgical Quarterly,2004,43(03):339-354. |
| [7] | 舒先进,张淑琴,宋志刚.00Cr22Ni5Mo3N双相不锈钢热加工性能的试验研究[J].钢管,2004(06):15-19. |
| [8] | Sandberg A;Sandstrom R .Static recrystallization and hot ductility of molybdenum and nitrogen alloyed austenitic stainless steels in association with two and multistep deformation[J].Materials Science and Technology,1986,2(09):917-925. |
| [9] | A. Dehghan-Manshadi;M. R. Barnett;P. D. Hodgson .Microstructural evolution during hot deformation of duplex stainless steel[J].Materials Science and Technology: MST: A publication of the Institute of Metals,2007(12):1478-1484. |
| [10] | Dehghan-Manshadi A;Hodgson PD .Effect of delta-ferrite co-existence on hot deformation and recrystallization of austenite[J].Journal of Materials Science,2008(18):6272-6277. |
| [11] | Iza-Mendia A;Pi(n)ol-Juez A;Urcola J J et al.Microstructural and mechanical behavior of a duplex stainless steel under hot working conditions[J].Metallurgical and Materials Transactions A:Physical Metallurgy and Materials Science,1998,29:2975-2985. |
上一张
下一张
上一张
下一张
计量
- 下载量()
- 访问量()
文章评分
- 您的评分：
-
10%
-
20%
-
30%
-
40%
-
50%