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Trans. Nonferrous Met. Soc. China 30(2020) 668-677 Effect of grain size on high-temperature stress relaxation behavior of fine-grained TC4 titanium alloy He-li PENG1,2, Xi-feng LI3, Xu CHEN1,2, Jun... Received 24 May 2019; accepted 30 December 2019 Abstract: In order to analyze the effect of grain size on stress relaxation (SR) mechanism, the SR tests of TC4 alloy with three kinds of grain size......
出调整建议. 关键词:钛合金；锻造；有限元模拟 中图分类号:TF 804.3 文献标志码:A FEM simulation of forging of Ti alloy YU De-jun1, BAI Chun-guang1, XU Dong-sheng1, LI Wei-qing2, HE Shu-lin2, LEI... analysis after the simulation under different deformation condition, hammer overlapping, and forging process. Key words: Ti alloy; forging; TEM simulation 钛合金因具有较高的比强度和耐蚀性能等,是最具潜力的轻型结构材料之一,近年来受到极大关......
℃,保温时间为7 h时,板材可获得良好的综合力学性能. 关键词:TC4钛合金；显微组织；退火温度；保温时间；真空退火 中图分类号:TG166.5 文献标志码:A Influence of heat-treatment process on structure and performance of TC4 alloy sheet DANG Peng... with vacuum stack annealing and furnace cooling treatment. Key words: TC4 titanium alloy; microstructure; annealing temperature; holding time; vacuum annealing TC4钛合金具有极佳的综合力学性能及良好的加工能力,在航空,航天,化工等领域具有广泛的应用.近年来......
:CT20钛合金；电子束焊接；显微组织 中图分类号:TF 804.3 文献标志码:A Electron beam welding process of CT20 Ti alloy ZHAO Bin, YANG Ying-li, ZHAO Heng-zhang, DU Yu, GUO Di-zi (Northwest Institute... α structure is formed. Key words: CT20 Ti alloy; electron beam welding; microstructure CT20钛合金是西北有色金属研究院为航天低温管路构件而设计的一种近α钛合金.该合金在低温下具有比强度高,导热率低,热膨胀系数小,介质相容性好,抗氢脆等特点,可以很好地满足液体燃料储箱和低温管路使用[1-3].目前,发动机低......
-V系典型的马氏体α+β型两相钛合金,在退火状态下,合金中含有约7%的β相.从晶体结构分析,α-Ti为密排六方点阵,β-Ti为体心立方点阵.多晶体的塑性变形特点主要是各晶粒变形的不同时性及相互协调性,密排六方的滑移系较少,很难使晶粒的变形彼此协调,导致塑性差,冷加工困难.钛合金TC4丝材拉拔工艺中,加工温度处于材料的再结晶温度附近.在550~750 ℃温区进行多道次拉拔至d 2.6 mm的丝材.丝..., GUO Hong-chao, ZHU Zhi-shou. Effect of heat treatment on microstructure and mechanical properties of TC4 alloy[J]. Hot Working Technology, 2005(8): 26-27. [3] 包春林, 马栓柱, 杨海涛, 梅新民, 姚 谦. 热处理温度对等轴初晶TC4钛合金组织......
): 1146-1150. [12] 李瑞冬. TC4钛合金喷丸处理及涂层的微动磨损特性研究[D]. 大连: 大连理工大学材料科学与工程学院, 2016: 9-10. LI Ruidong. Study on the fretting wear behavior of TC4 titanium alloy after shot peening and coating treatment[D]. Dalian...:A 文章编号:1672-7207(2019)02-0328-08 Fretting wear characteristics of TC4 alloy in distilled water SONG Wei, SUN Lu, JING Pengfei, YU Shurong (College......
种重要的金属材料.采用Minitab软件中的响应面设计建立TC4钛合金在超塑性高温拉伸的网络模型,利用该模型可获得该合金的最佳伸长率,变形条件和各影响因素间的显著性效果,为超塑成形的热加工工艺和质量控制提供理论依据. 关键词:TC4钛合金；超塑性；伸长率；响应面设计 中图分类号:TG146.2 文献标志码:A Application... surface, the superplastic high temperature tensile network model of TC4 titanium alloy was establistled and the model was used for the alloy to obtain optimal elongation, deformation condition......
treatment on microstructure and mechanical properties of Ti-6Al-4V ELI alloy plate[J]. Chinese Journal of Rare Metals, 2005, 29(6): 841-844. [5] 王永梅, 李渭清, 马 龙, 杨慧丽, 王丽瑛, 李峰丽. 热处理工艺对TC4(ELI)钛合金组织和力学性能的...文章编号:1004-0609(2012)10-2749-07 初生α相含量对TC4 ELI钛合金动态应力-应变行为的影响 刘清华,惠松骁,叶文君,王 国,胡光山 (北京有色金属研究总院 有色金属材料制备加工国家重点实验室,北京 100088) 摘 要:利用分离式霍普金森压杆(SHPB)装置,对低间隙Ti-6Al-4V(TC4......
Hot deformation behavior and microstructure evolution of TC4 titanium alloy SUN Sheng-di(孙圣迪), ZONG Ying-ying(宗影影), SHAN De-bin(单德彬), GUO Bin(郭 斌) School of Materials Science and Engineering, Harbin Institute of Technology, Harbin 150001, China Received 23 October 2009; accepted 25 August 2010 Abstract: The hot deformation behavior of Ti-6Al-4V (TC4) titanium alloy was investigated......
fatigue [17]. TC4 and TC17 Ti alloys were used widely for gas turbine compressor such as integrally bladed titanium alloy disks of compressor owing to good mechanical properties in the middle temperature... and TC17, the structure undergoes severe plastic deformation and re-orientation, yet without altering the phase fractions. After PWHT, in the weld zone of TC4 alloy, the phase transformation α′→ α+β......
