应变速率和温度对炉冷态TA15钛合金在α+β两相区压缩变形行为的影响
Effects of Strain Rate and Temperature on Compressive Deformation Behavior of TA15 Furnace Cooling State Titanium Alloy during α+β Two-phase Region
摘 要
用Thermecmastor-Z型热模拟试验机对炉冷态TA15钛合金进行了变形温度为750～950 ℃、应变速率为0.00 1～10 s-1的热压缩试验,研究了应变速率和温度对该合金在α+β两相区流变应力和显微组织的影响.结果表明:随变形温度升高、应变速率降低,炉冷态TA15钛合金的流变应力下降;同时α相含量减少,晶内与晶界α相差别消失,α相发生球化;较佳的锻造工艺参数为温度850～950 ℃,应变速率0.001～0.01 s-1.
变形温度
应变速率
TA15 titanium alloy
deformation temperature
strain rate
Abstract
The high temperature compression tests of furnace cooling state TA15 titanium alloy were carried on Thermecmastor-Z simulator in the temperature range of 750-950 ℃ and strain rate range of 0.001-10 s-1.The influences of strain rate and temperature on the flow stress and microstructure of the alloy were studied.The results show with the increase of temperature and decrease of strain rate,the flow stress of the alloy decreased,the α-phase content also decreased,deferences between the α-phase in grain and along the boundary disappeared,and part α-phase occured nodularization.The optimum forging parameters for TA15 titanium alloy were in the temperature range of 850-950 ℃ and strain rate range of 0.001-0.01 s-1.
中图分类号 TG146.2
所属栏目 试验研究
基金项目 江西省自然科学基金资助项目(2007GQC1575);江西省材料科学与工程研究中心预研基金资助项目(ZX200601002);南昌航空大学大学生科技创新基金资助项目(106004220054)
收稿日期 2008/2/25
修改稿日期 2008/6/24
网络出版日期
作者单位点击查看
备注方军(1984-),男,江西上饶人,硕士研究生.
引用该论文: FANG Jun,WANG Ke-lu,DONG Xian-juan,LI Xin,YANG Hua-juan. Effects of Strain Rate and Temperature on Compressive Deformation Behavior of TA15 Furnace Cooling State Titanium Alloy during α+β Two-phase Region[J]. Materials for mechancial engineering, 2009, 33(2): 9～11
方军,王克鲁,董显娟,李鑫,杨化娟. 应变速率和温度对炉冷态TA15钛合金在α+β两相区压缩变形行为的影响[J]. 机械工程材料, 2009, 33(2): 9～11
被引情况:
【1】范曦,潘清林,李建湘,杨志兵,刘晓艳,覃银江, "定影辊用铝-锰-镁合金的动态再结晶行为",机械工程材料 34, 26-29(2010)
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】徐文臣,单德彬,李春峰,等.TA15合金的动态热压缩行为及其机理研究[J].航空材料学报,2005,25(4):13-19.
【2】洪权,张振祺.Ti-6Al-2Zr-1Mo-1V合金的热变形行为[J].航空材料学报,2001,21(1):10-12.
【3】Cho J R,Dye D.Intergranular strain accumulation in a near-alpha titanium alloy during plastic deformation[J].Materials Science and Technology,2002,50:4847-4864.
【4】李兴元,刘瑞民.显微组织对TA15合金疲劳性能的影响[J].金属学报,2002,38(9):280-281.
【5】王斌,郭鸿镇,姚泽坤,等.热压参数对TA15合金流动应力及显微组织的影响[J].锻压技术,2006,31(6):106-109.
【6】Seeshacharyulu T,Medeiros S C,Frazier W G,et al.Hot working of commercial Ti-Al-4V with an equiaxed α-β microstructure:materials modeling considerations[J].Materials Science and Engineering,2002,A284:184-194.
【7】陆辛,白秉哲,海锦涛.Ti-6Al-4V在压缩状态下的超塑性行为[C]//钛科学与工程:第六届全国钛及钛合金学术交流会文集.北京:原子能出版社,1987:226-232.
【8】Jaffee R I,Promisel N E.The science,technology and application of titanium[M].London:Pergamon press,1970.
【2】洪权,张振祺.Ti-6Al-2Zr-1Mo-1V合金的热变形行为[J].航空材料学报,2001,21(1):10-12.
【3】Cho J R,Dye D.Intergranular strain accumulation in a near-alpha titanium alloy during plastic deformation[J].Materials Science and Technology,2002,50:4847-4864.
【4】李兴元,刘瑞民.显微组织对TA15合金疲劳性能的影响[J].金属学报,2002,38(9):280-281.
【5】王斌,郭鸿镇,姚泽坤,等.热压参数对TA15合金流动应力及显微组织的影响[J].锻压技术,2006,31(6):106-109.
【6】Seeshacharyulu T,Medeiros S C,Frazier W G,et al.Hot working of commercial Ti-Al-4V with an equiaxed α-β microstructure:materials modeling considerations[J].Materials Science and Engineering,2002,A284:184-194.
【7】陆辛,白秉哲,海锦涛.Ti-6Al-4V在压缩状态下的超塑性行为[C]//钛科学与工程:第六届全国钛及钛合金学术交流会文集.北京:原子能出版社,1987:226-232.
【8】Jaffee R I,Promisel N E.The science,technology and application of titanium[M].London:Pergamon press,1970.
相关信息
