Ti-15-3合金经冷轧和时效后的显微组织及力学性能
Microstructure and Mechanical Properties of Ti-15-3 Alloy after Cold Rolling and Aging Treatment
摘 要
利用光学显微镜、透射电镜和X射线衍射仪等研究了Ti-15-3合金在五种不同工艺轧制过程中组织的演变规律以及轧制和时效处理后的显微组织和力学性能.结果表明:采用三种单向冷轧工艺均可以将2.9 mm厚的合金板很好地轧制成厚度约为0.6 mm的板材,并且轧后其晶粒逐步细化到纳米尺度,最小尺寸达到19.1 nm;固溶态合金经过40%/道次-3道次的冷轧并于450℃时效4 h后,由于出现了双相纳米组织,使合金的抗拉强度达到1 562 MPa,比冷轧态的提高了45%.
冷轧工艺
纳米晶粒
抗拉强度
Ti-15-3 alloy
cold rolling treatment
nanograin
ultimate strength
Abstract
The Microstructure evolution during cold rolling with five processes of Ti-15-3 alloy and the microstructure and mechenical properties after rolling and aging treatment were investigated by using optical microscopy,transmission electron microscopy and X ray diffraction.The results show that 0.6 mm sheet could be obtained after rolling the sheet with thickness of 2.9 mm through three different cold rolling processes in unidirection.The grain size was refined to nanoscale with a minimum size of 19.1 nm.After 40%/pass-3 passes cold rolling and aging at 450℃ for 4 h,bidirectional nano-structure in the solution treated alloy was found which improved the ultimate strength of the alloy to 1 562 MPa,that was increased by 45% compared with the cold-rolled alloy.
中图分类号 TG146.4
所属栏目 试验研究
基金项目
收稿日期 2009/3/22
修改稿日期 2009/9/7
网络出版日期
作者单位点击查看
备注郭强(1984-),男,内蒙古包头人,博士研究生.
引用该论文: GUO Qiang,WANG Qing,HAN Xiu-li,SUN Dong-li,WU Gao-hui,SUN Tao. Microstructure and Mechanical Properties of Ti-15-3 Alloy after Cold Rolling and Aging Treatment[J]. Materials for mechancial engineering, 2010, 34(4): 14～17
郭强,王清,韩秀丽,孙东立,武高辉,孙涛. Ti-15-3合金经冷轧和时效后的显微组织及力学性能[J]. 机械工程材料, 2010, 34(4): 14～17
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参考文献
【1】SEMENOVA I P,RAAB G I,SAITOVA L R,et al.The effect of equal-channel angular pressing on the structure and mechanical behavior of Ti-6Al-4V alloy[J].Materials Science and Engineering,2004,387:805-808.
【2】RAAB G I,SOSHNIKOVA E P,VALIEW R Z.Influence of temperature and hydrostatic pressure during equal-channel angular pressing on the microstructure of commercial-purity Ti[J].Materials Science and Engineering,2004,387:674-677.
【3】VLADlMIR V.Grain refinement and properties of pure Ti processed by warm ECAP and cold rolling[J].Materials Science and Engineering,2003,343:43-50.
【4】MISHRA R S.Mechanical behavior and superplasticity of a severe plastic deformation processed nanocrystalline Ti-6Al-4V alloy[J].Materials Science and Engineering,2001,289:44-50.
【5】SERGUEEVA A V.Enhanced superplasticity in a Ti-6Al-4V alloy processed by severe plastic deformation[J].Scripta Mater,2000,43:819-824.
【6】STOLYAROV V V.A two step SPD processing of ultrafine-grained titanium[J].NanoStructured Materials,1999,11(7):947-954.
【7】郝士林,杨锐.纳米高强Ti-24Nb-4Zr-7.9Sn合金[J].金属学报,2005,41(11):1183-1189.
【8】HAO Y L,LI S J,SUN S Y,et al.Super-elastic titanium alloy with unstable plastic deformation[J].Applied Physics Letters,2005,87:0919061-0919063.
【9】LI S J,ZHANG Y W,SUN B B,et al.Thermal stability and mechanical properties of nanostructured Ti-24Nb-4Zr-7.9Sn alloy[J].Materials Science and Engineering A,2008,480:101-108.
【10】HAO Y L,LI S J,SUN S Y,et al.Elastic deformation behaviour of Ti-24Nb-4Zr-7.9Sn for biomedical applications[J].Acta Biomaterialia,2007(3):277-286.
【11】HAO Y L,LI S J,SUN B B,et al.Ductile titanium alloy with low poisson’s ratio[J].Physical Review Letters,2007,98:2164051-2164054.
【12】李萍,薛克敏,曹爱民.Ti-15-3合金再结晶组织的预测[J].合肥工业大学学报,2004,24(9):991-995.
【13】VALIEV R Z,ISLAMGALIEV R K,ALEXANDROV V I.Bulk nanostructured materials from severe plastic deformation[J].Progress in Materials Science,2000,45(2):103-107.
【14】米格兰比H.材料的塑性变形与断裂[M].北京:科学出版社,1998.
【15】余永宁.材料科学基础[M].北京:高等教育出版社,2006.
【2】RAAB G I,SOSHNIKOVA E P,VALIEW R Z.Influence of temperature and hydrostatic pressure during equal-channel angular pressing on the microstructure of commercial-purity Ti[J].Materials Science and Engineering,2004,387:674-677.
【3】VLADlMIR V.Grain refinement and properties of pure Ti processed by warm ECAP and cold rolling[J].Materials Science and Engineering,2003,343:43-50.
【4】MISHRA R S.Mechanical behavior and superplasticity of a severe plastic deformation processed nanocrystalline Ti-6Al-4V alloy[J].Materials Science and Engineering,2001,289:44-50.
【5】SERGUEEVA A V.Enhanced superplasticity in a Ti-6Al-4V alloy processed by severe plastic deformation[J].Scripta Mater,2000,43:819-824.
【6】STOLYAROV V V.A two step SPD processing of ultrafine-grained titanium[J].NanoStructured Materials,1999,11(7):947-954.
【7】郝士林,杨锐.纳米高强Ti-24Nb-4Zr-7.9Sn合金[J].金属学报,2005,41(11):1183-1189.
【8】HAO Y L,LI S J,SUN S Y,et al.Super-elastic titanium alloy with unstable plastic deformation[J].Applied Physics Letters,2005,87:0919061-0919063.
【9】LI S J,ZHANG Y W,SUN B B,et al.Thermal stability and mechanical properties of nanostructured Ti-24Nb-4Zr-7.9Sn alloy[J].Materials Science and Engineering A,2008,480:101-108.
【10】HAO Y L,LI S J,SUN S Y,et al.Elastic deformation behaviour of Ti-24Nb-4Zr-7.9Sn for biomedical applications[J].Acta Biomaterialia,2007(3):277-286.
【11】HAO Y L,LI S J,SUN B B,et al.Ductile titanium alloy with low poisson’s ratio[J].Physical Review Letters,2007,98:2164051-2164054.
【12】李萍,薛克敏,曹爱民.Ti-15-3合金再结晶组织的预测[J].合肥工业大学学报,2004,24(9):991-995.
【13】VALIEV R Z,ISLAMGALIEV R K,ALEXANDROV V I.Bulk nanostructured materials from severe plastic deformation[J].Progress in Materials Science,2000,45(2):103-107.
【14】米格兰比H.材料的塑性变形与断裂[M].北京:科学出版社,1998.
【15】余永宁.材料科学基础[M].北京:高等教育出版社,2006.
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