循环加载频率对镁合金棘轮应变的影响
收稿日期: 2024-03-27
修回日期: 2024-04-17
录用日期: 2024-05-13
网络出版日期: 2024-05-22
基金资助
国家自然科学基金(51901140);齐鲁工业大学人才科研项目(2023RCKY014)
Effects of cyclic loading frequency on ratcheting of magnesium alloy
Received date: 2024-03-27
Revised date: 2024-04-17
Accepted date: 2024-05-13
Online published: 2024-05-22
Supported by
National Natural Science Foundation of China(51901140);Talent Research Project in Qilu University of Technology(2023RCKY014)
在不同加载速率下镁合金的机械性能存在差异，为探讨循环频率与棘轮应变的关系，对挤压态AZ31B镁合金进行应力控制下的循环实验，研究频率对镁合金的棘轮应变及其演化过程的影响。分别讨论了频率为1.0、2.0、5.0 Hz时镁合金的循环变形过程，结果表明：挤压态AZ31B镁合金在循环变形过程中存在明显的棘轮效应，且在相同平均应力作用下棘轮应变与频率的关系并不是单调的，频率为5.0 Hz时的棘轮应变处于1.0 Hz与2.0 Hz之间。这是由于频率为1.0 Hz与2.0 Hz时频率较低，在一个循环周期下应力作用的时间更长，因此1.0 Hz时形成的棘轮应变比2.0 Hz时的更大；而频率为5.0 Hz时，相对于1.0 Hz和2.0 Hz时孪生-去孪生机制所占比重更大，循环中具有更低的硬化率，故棘轮应变较2.0 Hz时更大。不同频率下，循环前期棘轮应变均快速增加，经一定循环次数后趋于稳定。
师雨晴 , 段国升 , 宋令慧 , 武保林 , 杜兴蒿 . 循环加载频率对镁合金棘轮应变的影响[J]. 航空学报, 2024 , 45(24) : 430455 -430455 . DOI: 10.7527/S1000-6893.2024.30455
There are differences in the mechanical properties of magnesium alloys at different loading rates， in order to explore the relationship between cyclic frequency and ratcheting strain， cyclic experiments under stress control were carried out on extruded AZ31B magnesium alloys to study the effect of frequency on the ratcheting strain of magnesium alloys and its evolution process. The cyclic deformation process of magnesium alloys at frequencies of 1.0， 2.0， 5.0 Hz are discussed respectively. The results show that there is an obvious ratcheting effect during cyclic deformation of extruded AZ31B magnesium alloys， and the relationship between the ratcheting strain and frequency under the same average stress is not monotonic. The results also show that value of the ratcheting strain at 5.0 Hz is in the range between 1.0 Hz and 2.0 Hz， which is due to the fact that when the frequency is 1.0 Hz versus 2.0 Hz， the stresses act for a longer period of time under a cyclic cycle at a lower frequency， so the value of the ratcheting strain formed at 1.0 Hz is greater than at 2.0 Hz. However， at a frequency of 5.0 Hz， the twinning-de-twinning mechanism is more predominant relative to 1.0 Hz and 2.0 Hz， and there is a lower hardening rate in the cycle， so the ratcheting strain values are greater than at 2.0 Hz. At different frequencies， the ratcheting strain increases rapidly in the pre-cycle period and stabilizes after a certain number of cycles.
Key words： frequency; ratcheting behavior; fatigue; stress-controlled; twinning mechanism
| 1 | JIN Z Z， ZHA M， WANG S Q， et al. Alloying design and microstructural control strategies towards developing Mg alloys with enhanced ductility［J］. Journal of Magnesium and Alloys， 2022， 10（5）： 1191-1206. |
| 2 | SARKER D， CHEN D L. Detwinning and strain hardening of an extruded magnesium alloy during compression［J］. Scripta Materialia， 2012， 67（2）： 165-168. |
| 3 | 丁文江， 付彭怀， 彭立明，等.先进镁合金材料及其在航空航天领域中的应用［J］. 航天器环境工程， 2011， 28： 103-109. |
| DING W J， FU P H， PENG L M， et al. Advanced manesium alloy materials and their applications in aerospace［J］. Aerospace Environmental Engineering， 2011， 28： 103-109 （in Chinese）. | |
| 4 | WANG Y Q， CULBERTSON D， JIANG Y Y. An experimental study of anisotropic fatigue behavior of rolled AZ31B magnesium alloy［J］. Materials & Design， 2020， 186： 108266. |
| 5 | MENG L， CHEN W F， FENG M L. An experimental study of creep-ratchetting behavior of rolled AZ31B magnesium alloy at room temperature［J］. Fatigue & Fracture of Engineering Materials & Structures， 2020， 43（2）： 417-428. |
| 6 | NAKAI Y， KIKUCHI S， ASAYAMA K， et al. Effects of texture and stress sequence on twinning， detwinning and fatigue crack initiation in extruded magnesium alloy AZ31［J］. Materials Science and Engineering： A， 2021， 826： 141941. |
| 7 | LIN S F， ZHU R， WU Y J， et al. Uniaxial ratcheting of extruded Mg-10Gd-3Y alloy under stress-controlled cyclic tension［J］. Journal of Materials Engineering and Performance， 2020， 29（4）： 2103-2112. |
| 8 | DUTTA K， RAY K K. Ratcheting phenomenon and post-ratcheting tensile behaviour of an aluminum alloy［J］. Materials Science and Engineering： A， 2012， 540： 30-37. |
| 9 | FAN C L， CHEN D L， LUO A A. Dependence of the distribution of deformation twins on strain amplitudes in an extruded magnesium alloy after cyclic deformation［J］. Materials Science and Engineering： A， 2009， 519（1-2）： 38-45. |
| 10 | KAIYA N， TAKAHARA A， KAJIYAMA T. Fatigue fracture behavior of solid-state extruded high-density polyethylene［J］. Polymer Journal， 1989， 21（7）： 523-531. |
| 11 | DUSUNCELI N， AYDEMIR B， TERZI N U， et al. Cyclic behavior of high density polyethylene （HDPE）［C］?∥ AIP Conference Proceedings. New York： AIP， 2010. |
| 12 | KANG G Z， KAN Q H， ZHANG J， et al. Constitutive modeling for uniaxial time-dependent ratcheting of SS304 stainless steel［J］. Key Engineering Materials， 2007， 340-341： 817-822. |
| 13 | LEI Y， LI H， LIU Y J， et al. Experimental study on uniaxial ratchetting-fatigue interaction of extruded AZ31 magnesium alloy with different plastic deformation mechanisms［J］. Journal of Magnesium and Alloys， 2023， 11（1）： 379-391. |
| 14 | WU B L， SONG L H， DUAN G S， et al. Effect of cyclic frequency on uniaxial ratcheting behavior of a textured AZ31B magnesium alloy under stress control［J］. Materials Science and Engineering： A， 2020， 795： 139675. |
| 15 | LIN Y C， LIU Z H， CHEN X M， et al. Uniaxial ratcheting and fatigue failure behaviors of hot-rolled AZ31B magnesium alloy under asymmetrical cyclic stress-controlled loadings［J］. Materials Science and Engineering： A， 2013， 573： 234-244. |
| 16 | DUAN G S， GUAN Z W， SONG L H， et al. Dual frequency domain characteristics of ratcheting behavior of AZ31B alloy under asymmetrically stress-controlled loading mode［J］. Materials Characterization， 2023， 196： 112574. |
| 17 | KANG G Z， YU C， LIU Y J， et al. Uniaxial ratchetting of extruded AZ31 magnesium alloy： Effect of mean stress［J］. Materials Science and Engineering： A， 2014， 607： 318-327. |
| 18 | KANG G. Ratchetting： Recent progresses in phenomenon observation， constitutive modeling and application［J］. International Journal of Fatigue， 2008， 30（8）： 1448-1472. |
| 19 | GENG C J， WU B L， DU X H， et al. Stress-strain response of textured AZ31B magnesium alloy under uniaxial tension at the different strain rates［J］. Materials Science and Engineering： A， 2013， 559： 307-313. |
| 20 | YU D J， CHEN X， YU W W， et al. Thermo-viscoplastic modeling incorporating dynamic strain aging effect on the uniaxial behavior of Z2CND18.12N stainless steel［J］. International Journal of Plasticity， 2012， 37： 119-139. |
| 21 | 韩重韬， 宋令慧， 段国升， 等. 平均应力对AZ31B挤压镁合金棘轮行为的影响［J］. 航空学报， 2022， 43（12）： 426060. |
| HAN C T， SONG L H， DUAN G S， et al. Effects of mean stress on ratcheting behavior of extruded AZ31B magnesium alloy［J］. Acta Aeronautica et Astronautica Sinica， 2022， 43（12）： 426060 （in Chinese）. | |
| 22 | DUAN G S， CHU Y H， SONG L H， et al. The effect of stress amplitude on ratcheting strain development in an extruded AZ31B magnesium alloy under different mean stresses?［J］. Materials Science and Engineering： A， 2022， 860： 144226. |
| 23 | XIONG Y， YU Y. Ratcheting deformation and fatigue of surface treated ZK60 magnesium alloy［J］. International Journal of Fatigue， 2022， 156： 106691. |
| 24 | XIONG Y， YU Q， JIANG Y Y. An experimental study of cyclic plastic deformation of extruded ZK60 magnesium alloy under uniaxial loading at room temperature［J］. International Journal of Plasticity， 2014， 53： 107-124. |
| 25 | FAN H D， WANG Q Y， EL-AWADY J A， et al. Strain rate dependency of dislocation plasticity［J］. Nature Communications， 2021， 12： 1845. |
| 26 | XIONG Y， YU Q， JIANG Y Y. Deformation of extruded ZK60 magnesium alloy under uniaxial loading in different material orientations［J］. Materials Science and Engineering： A， 2018， 710： 206-213. |
| 27 | WANG Z Y， WU S H， KANG G，et al. In-situ synchrotron X-ray tomography investigation on damage mechanism of an extruded magnesium alloy in uniaxial low-cycle fatigue with ratchetting［J］.Acta Materialia， 2021， 211： 3782842. |
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