不同速率变形后WE54合金的显微组织及力学性能
Microstructure and Mechanical Properties of WE54 Alloy after Deformation under Different Speeds
摘 要
对T4态和T6态WE54合金进行准静态压缩变形和空气锤锻（高速）变形试验，研究了变形前后的显微组织、硬度和压缩性能。结果表明：T4态和T6态WE54合金在准静态变形和高速变形后，部分变形晶粒内出现孪晶，并且在一些粗大孪晶内形成了二次孪晶，孪晶出现平行排列和交割特征；不同速率变形后T4态和T6态合金的变形晶粒尺寸未发生明显变化，但新生成的孪晶由于切割基体细化了组织，有助于维氏硬度和压缩性能的提高；与准静态变形相比，高速变形能够促进晶粒采用孪生机制协调变形，产生更多的孪晶界细化组织，提升变形后合金的硬度和屈服强度。
高速率变形
孪晶
显微组织
WE54 alloy
high speed deformation
twin
microstructure
Abstract
The WE54 alloy in T4 and T6 states were deformed by quasi-static compression and air-hammer forging (high speed). The microstructures, hardness and compression performance before and after deformation were investigated. The results show that after the quasi-static deformation and high speed deformation, twins appeared in some deformed grains of WE54 alloys in T4 and T6 states, and secondary twins were fomed in some coarse twins. These twins exhibited parallel arrangement or intersection features. The deformed grain size remained invariable in the T4 and T6 alloys after deformation at different speeds, but the refining structure due to the sectioning of matrix by newly formed twins was helpful for the improvement of Vickers hardness and compression performence. Compared with the quasi-static compression, the high speed deformation promoted the twinning mechanism to coordinate deformation, therefore induced more twin boundaries to refine the matrix and enhance the hardness and yield strength of the deformed alloys.
中图分类号 TG319 DOI 10.11973/jxgccl202105010
所属栏目 材料性能及应用
基金项目 2019年河南省科技攻关项目（192102210165）
收稿日期 2020/6/17
修改稿日期 2021/4/30
网络出版日期
作者单位点击查看
备注尚长沛(1978-),男,河南方城人,副教授,硕士
引用该论文: SHANG Changpei,YANG Fan,XIA Zhiping. Microstructure and Mechanical Properties of WE54 Alloy after Deformation under Different Speeds[J]. Materials for mechancial engineering, 2021, 45(5): 56～62
尚长沛,杨帆,夏志平. 不同速率变形后WE54合金的显微组织及力学性能[J]. 机械工程材料, 2021, 45(5): 56～62
共有人对该论文发表了看法，其中：
人认为该论文很差
人认为该论文较差
人认为该论文一般
人认为该论文较好
人认为该论文很好
参考文献
【1】WU Z,CURTIN W A.The origins of high hardening and low ductility in magnesium[J].Nature,2015,526(7571):62-67.
【2】KUZMINA M,HERBIG M,PONGE D,et al.Linear complexions:Confined chemical and structural states at dislocations[J].Science,2015,349(6252):1080-1083.
【3】FU H,GE B C,XIN Y C,et al.Achieving high strength and ductility in magnesium alloys via densely hierarchical double contraction nanotwins[J].Nano Letters,2017,17(10):6117-6124.
【4】LI G A,ZHEN L,LI H T,et al.Study of deformed microstructures near the impact crater in pure copper targets[J].Materials Science and Engineering:A,2004,384(1/2):12-18.
【5】SHKOLNIKOV M B. Strain rates in crashworthiness[C]//Proceedings of the 8th International LS-DYNA Users Conference. Dearborn, MI:[s.n.], 2004:9-20.
【6】EL-MAGD E, ABOURIDANE M. High speed forming of the light-weight wrought alloys[C]//Proceedings of the 1st International Conference on High Speed Forming ICHSF. Dortmund:[s.n.], 2004:3-12.
【7】LI J L,WU D,CHEN R S,et al.Anomalous effects of strain rate on the room-temperature ductility of a cast Mg-Gd-Y-Zr alloy[J].Acta Materialia,2018,159:31-45.
【8】ISHIKAWA K,WATANABE H,MUKAI T.High strain rate deformation behavior of an AZ91 magnesium alloy at elevated temperatures[J].Materials Letters,2005,59(12):1511-1515.
【9】WANG M,LU L,LI C,et al.Deformation and spallation of a magnesium alloy under high strain rate loading[J].Materials Science and Engineering:A,2016,661:126-131.
【10】YU J C,LIU Z,DONG Y,et al.Dynamic compressive property and failure behavior of extruded Mg-Gd-Y alloy under high temperatures and high strain rates[J].Journal of Magnesium and Alloys,2015,3(2):134-141.
【11】于金程,刘正,董阳,等.高应变速率下Mg-Gd-Y镁合金动态拉伸性能与失效行为[J].沈阳工业大学学报,2015,37(6):650-655. YU J C,LIU Z,DONG Y,et al.Dynamic tensile properties and failure behavior of Mg-Gd-Y alloy at high strain rates[J].Journal of Shenyang University of Technology,2015,37(6):650-655.
【12】毛萍莉,于金程,刘正,等.挤压态Mg-Gd-Y镁合金动态压缩力学性能与失效行为[J].中国有色金属学报,2013,23(4):889-897. MAO P L,YU J C,LIU Z,et al.Dynamic mechanical property and failure behavior of extruded Mg-Gd-Y alloy under high strain rate compression[J].The Chinese Journal of Nonferrous Metals,2013,23(4):889-897.
【13】于金程,董芳,徐年宝,等.高温高应变率下EW75镁合金动态压缩性能与组织演变[J].稀有金属,2019,43(2):141-150. YU J C,DONG F,XU N B,et al.Dynamic compressive properties and microstructural evolution of EW75 magnesium alloy at high temperatures and high strain rates[J].Chinese Journal of Rare Metals,2019,43(2):141-150.
【14】ZOU D L,ZHEN L,ZHU Y,et al.Deformed microstructure evolution in AM60B Mg alloy under hypervelocity impact at a velocity of 5 km·s-1[J].Materials & Design,2010,31(8):3708-3715.
【15】ZOU D L,ZHEN L,XU C Y,et al.Characterization of adiabatic shear bands in AM60B magnesium alloy under ballistic impact[J].Materials Characterization,2011,62(5):496-502.
【16】SHI X Y,LUO A A,SUTTON S C,et al.Twinning behavior and lattice rotation in a Mg-Gd-Y-Zr alloy under ballistic impact[J].Journal of Alloys and Compounds,2015,650:622-632.
【17】LIU Y X,LI Y X,ZHANG H,et al.Influence of twinning-induced recrystallization on texture evolution in a high strain rate compressed Mg-Zn alloy[J].Materials Characterization,2020,162:110192.
【18】CHUN Y B,DAVIES C H J.Twinning-induced negative strain rate sensitivity in wrought Mg alloy AZ31[J].Materials Science and Engineering:A,2011,528(18):5713-5722.
【19】HONG S G,PARK S H,LEE C S.Role of {10-12} twinning characteristics in the deformation behavior of a polycrystalline magnesium alloy[J].Acta Materialia,2010,58(18):5873-5885.
【20】GALIYEV A M,KAIBYSHEV R O,GOTTSTEIN G.Grain refinement of ZK60 magnesium alloy during low temperature deformation[M]//Magnesium Technology 2002.[S.l.]:TMS,2002.
【21】STANFORD N.Observation of {1121}2 twinning in a Mg-based alloy[J].Philosophical Magazine Letters,2008,88(5):379-386.
【2】KUZMINA M,HERBIG M,PONGE D,et al.Linear complexions:Confined chemical and structural states at dislocations[J].Science,2015,349(6252):1080-1083.
【3】FU H,GE B C,XIN Y C,et al.Achieving high strength and ductility in magnesium alloys via densely hierarchical double contraction nanotwins[J].Nano Letters,2017,17(10):6117-6124.
【4】LI G A,ZHEN L,LI H T,et al.Study of deformed microstructures near the impact crater in pure copper targets[J].Materials Science and Engineering:A,2004,384(1/2):12-18.
【5】SHKOLNIKOV M B. Strain rates in crashworthiness[C]//Proceedings of the 8th International LS-DYNA Users Conference. Dearborn, MI:[s.n.], 2004:9-20.
【6】EL-MAGD E, ABOURIDANE M. High speed forming of the light-weight wrought alloys[C]//Proceedings of the 1st International Conference on High Speed Forming ICHSF. Dortmund:[s.n.], 2004:3-12.
【7】LI J L,WU D,CHEN R S,et al.Anomalous effects of strain rate on the room-temperature ductility of a cast Mg-Gd-Y-Zr alloy[J].Acta Materialia,2018,159:31-45.
【8】ISHIKAWA K,WATANABE H,MUKAI T.High strain rate deformation behavior of an AZ91 magnesium alloy at elevated temperatures[J].Materials Letters,2005,59(12):1511-1515.
【9】WANG M,LU L,LI C,et al.Deformation and spallation of a magnesium alloy under high strain rate loading[J].Materials Science and Engineering:A,2016,661:126-131.
【10】YU J C,LIU Z,DONG Y,et al.Dynamic compressive property and failure behavior of extruded Mg-Gd-Y alloy under high temperatures and high strain rates[J].Journal of Magnesium and Alloys,2015,3(2):134-141.
【11】于金程,刘正,董阳,等.高应变速率下Mg-Gd-Y镁合金动态拉伸性能与失效行为[J].沈阳工业大学学报,2015,37(6):650-655. YU J C,LIU Z,DONG Y,et al.Dynamic tensile properties and failure behavior of Mg-Gd-Y alloy at high strain rates[J].Journal of Shenyang University of Technology,2015,37(6):650-655.
【12】毛萍莉,于金程,刘正,等.挤压态Mg-Gd-Y镁合金动态压缩力学性能与失效行为[J].中国有色金属学报,2013,23(4):889-897. MAO P L,YU J C,LIU Z,et al.Dynamic mechanical property and failure behavior of extruded Mg-Gd-Y alloy under high strain rate compression[J].The Chinese Journal of Nonferrous Metals,2013,23(4):889-897.
【13】于金程,董芳,徐年宝,等.高温高应变率下EW75镁合金动态压缩性能与组织演变[J].稀有金属,2019,43(2):141-150. YU J C,DONG F,XU N B,et al.Dynamic compressive properties and microstructural evolution of EW75 magnesium alloy at high temperatures and high strain rates[J].Chinese Journal of Rare Metals,2019,43(2):141-150.
【14】ZOU D L,ZHEN L,ZHU Y,et al.Deformed microstructure evolution in AM60B Mg alloy under hypervelocity impact at a velocity of 5 km·s-1[J].Materials & Design,2010,31(8):3708-3715.
【15】ZOU D L,ZHEN L,XU C Y,et al.Characterization of adiabatic shear bands in AM60B magnesium alloy under ballistic impact[J].Materials Characterization,2011,62(5):496-502.
【16】SHI X Y,LUO A A,SUTTON S C,et al.Twinning behavior and lattice rotation in a Mg-Gd-Y-Zr alloy under ballistic impact[J].Journal of Alloys and Compounds,2015,650:622-632.
【17】LIU Y X,LI Y X,ZHANG H,et al.Influence of twinning-induced recrystallization on texture evolution in a high strain rate compressed Mg-Zn alloy[J].Materials Characterization,2020,162:110192.
【18】CHUN Y B,DAVIES C H J.Twinning-induced negative strain rate sensitivity in wrought Mg alloy AZ31[J].Materials Science and Engineering:A,2011,528(18):5713-5722.
【19】HONG S G,PARK S H,LEE C S.Role of {10-12} twinning characteristics in the deformation behavior of a polycrystalline magnesium alloy[J].Acta Materialia,2010,58(18):5873-5885.
【20】GALIYEV A M,KAIBYSHEV R O,GOTTSTEIN G.Grain refinement of ZK60 magnesium alloy during low temperature deformation[M]//Magnesium Technology 2002.[S.l.]:TMS,2002.
【21】STANFORD N.Observation of {1121}2 twinning in a Mg-based alloy[J].Philosophical Magazine Letters,2008,88(5):379-386.
相关信息
