邱仟,王克鲁,鲁世强,欧阳德来,李鑫,张开铭,高鑫.SP700钛合金热压缩失稳变形数值模拟研究[J].稀有金属材料与工程,2022,51(8):2985~2991.[Qiu Qian,Wang Kelu,Lu Shiqiang,Ouyang Delai,Li Xin,Zhang Kaiming,Gao Xin.Numerical Simulation Research on Hot Compression Instability of SP700 Titanium Alloy[J].Rare Metal Materials and Engineering,2022,51(8):2985~2991.]
SP700钛合金热压缩失稳变形数值模拟研究
投稿时间:2021-07-11  修订日期:2021-08-10
中文关键词:  SP700钛合金  热压缩  失稳变形  数值模拟
基金项目:国家自然科学基金资助(项目号51761029);江西省研究生创新专项资金项目资助(项目号YC2020-S539)
中文摘要:
      利用SP700钛合金在Gleeble-3800型热模拟试验机下进行等温恒应变速率压缩得到的实验数据,构建出基于Prasad失稳准则的失稳图,得到在变形温度为700 ~ 950 ℃、应变速率为0.001 ~ 1 s-1时SP700钛合金的热压缩失稳变形的边界条件,并以此为基础结合Deform-3D有限元软件对SP700钛合金在热压缩过程中失稳变形区域的分布及变化情况进行有限元数值模拟研究。结果表明:热压缩实验得到的SP700钛合金微观组织与有限元数值模拟结果的吻合度较高,即通过Deform-3D有限元软件可以有效模拟预测出SP700钛合金热压缩过程的失稳变形区域的分布及变化情况。
Numerical Simulation Research on Hot Compression Instability of SP700 Titanium Alloy
英文关键词:SP700 titanium alloy  hot compression  unstable deformation  numerical simulation
英文摘要:
      Using the experimental data obtained by isothermal and constant strain rate compression of the SP700 titanium alloy under the Gleeble-3800 thermal simulation test machine, the instability map based on the Prasad instability criterion is constructed. The boundary conditions for the thermal compression instability deformation of SP700 titanium alloy when the deformation temperature is 700 ~ 950 ℃ and the strain rate is 0.001 ~ 1 s-1 are obtained. Based on this, combined with Deform-3D finite element software to analyze the SP700 titanium alloy in the process of hot compression, the distribution and change of the unstable deformation area are studied by finite element numerical simulation.The results show that the microstructure of the SP700 titanium alloy obtained by the hot compression experiment is in good agreement with the finite element numerical simulation results. The Deform-3D finite element software can effectively simulate and predict the distribution and change of the unstable deformation area of the SP700 titanium alloy during the hot compression process.
作者单位E-mail
邱仟 南昌航空大学航空制造工程学院 1152517738@qq.com 
王克鲁 南昌航空大学航空制造工程学院  
鲁世强 南昌航空大学航空制造工程学院  
欧阳德来 南昌航空大学材料科学与工程学院  
李鑫 南昌航空大学航空制造工程学院  
张开铭 南昌航空大学航空制造工程学院  
高鑫 南昌航空大学航空制造工程学院  
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