基于有限元法分析Ti-6Al-4V合金的冲蚀行为
Erosion Behavior of Ti-6Al-4V Alloy Based on Finite Element Method
摘 要
建立了尖锐颗粒对Ti-6Al-4V合金冲蚀的有限元模型，采用Johnson-Cook塑性和失效准则，分析了Ti-6Al-4V合金的冲蚀过程及不同冲蚀角度、冲蚀速率下的冲蚀率变化规律。结果表明：颗粒在低冲击角（30°）下对Ti-6Al-4V合金是切削挤压作用；冲蚀率随冲蚀角增大呈先增大后减小的趋势，在30°时磨损最严重，并且随冲蚀速率增大呈指数增长；此外，等效应力峰值随冲蚀角的变化规律也能反映冲蚀的严重程度。
冲蚀磨损
冲蚀率
等效应力
finite element model
impact wear
erosion rate
equivalent stress
Abstract
A finite element model for the erosion of Ti-6Al-4V alloy by sharp particles was established. The erosion process of Ti-6Al-4V alloy and the variation of erosion rate at different erosion angles and erosion rates were analyzed by Johnson-Cook plasticity and failure criterion. The results showed that the particles were subjected to cutting and pressing on the Ti-6Al-4V alloy at a low impact angle (30°). The erosion rate increased first and then decreased with the increase of the erosion angle, showing the most serious wear at 30°, and increased exponentially with the increase of the erosion rate. In addition, the variation of the equivalent stress peak with the erosion angle could also reflect the severity of the erosion.
中图分类号 TE980 DOI 10.11973/fsyfh-201901007
所属栏目 应用技术
基金项目 四川省教育厅应用基础项目（096）
收稿日期 2017/7/7
修改稿日期
网络出版日期
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引用该论文: ZHANG Qichao,ZHANG Tao,WEN Songqing. Erosion Behavior of Ti-6Al-4V Alloy Based on Finite Element Method[J]. Corrosion & Protection, 2019, 40(1): 33
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【3】吕祥鸿,舒滢,赵国仙,等. 钛合金石油管材的研究和应用进展[J]. 稀有金属材料与工程,2014,43(6):1518-1524.
【4】MAZDAK P,KAMYAR N,FARADIS N,et al. A comprehensive review of solid particle erosion modeling for oil and gas wells and pipelines applications[J]. Journal of Natural Gas Science and Engineering,2014,21:850-873.
【5】PEEIRA G. Numerical prediction of the erosion due to particles in elbows[J]. Powder Technology,2014,261(7):105-117.
【6】ZHANG J X,KANG J,FAN J C. Study on erosion wear of fracturing pipeline under the action of multiphase flow in oil & gas industry[J]. Journal of Natural Gas Science and Engineering,2016,32:334-346.
【7】邵东,王建文. 煤液化弯管冲蚀磨损的数值模拟研究[J]. 腐蚀与防护,2016,37(5):424-428.
【8】TAKAFFOLI M,PAPINI M. Finite element analysis of single impacts of angular particles on ductile targets[J]. Wear,2009,267:144-151.
【9】LIU Z G,WAN S,NGUYEN V,et al. A numerical study on the effect of particle shape on the erosion of ductile materials[J]. Wear,2014,313:135-142.
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【11】WANG Y F,YANG Z G. Finite element model of erosive wear on ductile and brittle materials[J]. Wear,2008,265:871-878.
【12】TAKAFFOLI M,PAPINI M. Numerical simulation of solid particle impacts on Al6061-T6 part I:three-dimensional representation of angular particles[J]. Wear,2012:292/293:100-110.
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