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The dynamic responses of lamellar and equiaxed near β-Ti alloys subjected to multi-pass cross rollingWei Chen1,HANDe Wang1,Y.C.Lin2,Xiaoyong Zhang1,Chao Chen1,Yaping Lv1,Kechao Zhou11. State Key... a comparison on the microstructural characteristics, textural discrepancies, and twinning behaviors of lamellar and equiaxed near β-Ti alloys during multi-pass cross rolling with a rolling reduction of 20%, 50......
显微组织对TC4ELI合金疲劳裂纹扩展路径及扩展速率的影响马英杰1,李晋炜1,雷家峰1,唐振云2,刘羽寅1,杨锐2(1.辽宁省沈阳市科学院金属研究所2.中航工业北京航空制造工程研究所)摘 要:利用SEM观察了疲劳裂纹在具有片层组织的TC4ELI合金中的扩展路径,通过统计疲劳裂纹与α片层所呈的角度,分析了α和β两相晶体学取向对疲劳裂纹扩展路径的影响.基于对疲劳裂纹扩展路径的研究,测试并讨论了片层组织中晶粒和α片层对近门槛值阶段及Paris区阶段疲劳裂纹扩展速率的影响.研究表明,疲劳裂纹在片层组织中扩展时,疲劳裂纹......
of primary α phase volume fraction on tensile property and thermal stability of near-alpha TG6 titanium alloy[J]. Journal of Aeronautical Materials, 2007, 27(3): 17?22. [9] 惠松骁, 张 翥, 萧今声, 袁冠森. 高温钛合金热稳定性研究进展... properties of near-α high temperature titanium alloy IMI834 [J]. Journal of Aeronautical Materials, 1997(4): 15?20. [14] 周义刚. Ti-679合金热稳定性的研究[J]. 金属学报, 1980, 16(3): 302?307.ZHOU Yi-gang......
Institute, Beijing 100024, China) Abstract: The microstructure and microhardness of dissimilar joint of a near α titanium alloy Ti60 and a β-rich, α+β titanium alloy TC17 were studied using electron beam... of β phase. The HAZ of TC17 titanium alloy is constituted of acicular α′ phase, equiaxial α phase and metastable β phase. The microhardness of the joint distributes unevenly due to gradual......
) and (d). Fig.2 XRD spectrum of Al-Zn-Mg-Cu alloy plate The cracks near the crack source zone of the fracture are intergranular (Fig.3(a)). Going deep into a certain depth, the cracks transform...-crack and long-crack propagation behavior in titanium alloy TC4 and aluminum alloy 7475-T7351 [J]. Journal of Aeronautical Materials, 2005, 25(6): 11-16. (in Chinese) [14] FROUSTEY C, LATAILLADE J L......
Burning products of TA15 titanium alloy by friction oxygen concentration methodNan Sui,Guang-Bao Mi,Meng-Qi Yan,Jing-Xia Cao,Xu HuangAviation Key Laboratory of Science and Technology on Advanced... mechanism of the burning products of TA15 titanium alloy were investigated by friction oxygen concentration method, associated with in situ observation, X-ray diffraction(XRD),scanning electron......
Oxidation behaviors of TA15 titanium alloy and TiBw reinforced TA15 matrix composites prepared by spark plasma sinteringDongjun Wang1,2,Hao Li2,Wei Zheng31. National Key Laboratory for Precision Hot...="ChDivSummary">The purpose of this study is to investigate the oxidation behaviors of the TA15 titanium alloy and TiBw/TA15 composite with network microstructure in the temperature range of 873–1073 K......
Electrochemical behaviour of commercially pure titanium and Co-Cr alloy in Ringer’s solutionLIANG Chenghao and MOU ThanqiSchool of Chemical Engineering, Dalian University of Technology, Dalian 116012, China摘 要:<正>The electrochemical behaviors of commercially pure titanium (CP Ti) and Co-Cr alloy in Ringer’s solution havebeen investigated......
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that of Ti-B20 alloy. When the long axis of TiB whisker in titanium alloy containing boron parallels to the grain boundary, the TiB whisker has more significant restrictive effect on the grain growth. Key words: titanium alloy; grain growth; TiB; activation energy 众所周知,金属材料的屈服应力与平均晶粒尺寸之间符合Hall-Petch关系[1-2],Hall-Petch关系在多晶金属材料中具有普遍的适用性.钛合金的性能与晶粒尺寸之间亦符合这一关系,因此,提高钛合金力学性能可以通过细化晶粒的方法实现[3].铸态合金晶粒尺寸的细化还有助于提高钛合金的塑......
