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近, 略低于正常焊缝区硬度. 采用活性剂对钛合金可以进行多次补焊并能够获得高质量焊缝. 关键词: TA15钛合金; 钨极氩弧焊; 活性剂; 补焊; 组织特征 中图分类号: TG403 文献标识码: A Microstructure analysis of ctivated repair welding joint of TA15 titanium alloy LIU Li-ming1.... Department of Manufacturing Engineering, Shenyang Aircraft Corporation, Shenyang 110034, China) Abstract: The microstructure characteristics of TA15 titanium alloy joint multiple repaired with activated......
evolution of thermal deformation TA15 titanium alloy under β phase region heating institution YAO Peng-peng, LI Ping, XUE Ke-min, LI Cheng-ming, GAN Guo-qiang (School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009, China) Abstract: The microstructure, phase transition and texture evolution of TA15 titanium alloy after β phase region heating through hot deformation......
:TA15钛合金; 热变形; 动态再结晶; 形核; titanium alloy TA15; hot deformation process; dynamic recrystallization; nucleation; [全文内容正在添加中] ...TA15钛合金β热变形中的动态再结晶形核 鲁世强1,崔霞1,欧阳德来2,董显娟1,吴超1 (1.南昌航空大学材料科学与工程学院,江西,南昌,330063;2.南京航空航天大学材料科学与技术学院,江苏,南京,210016) 摘要:利用Thermecmaster-Z型热模拟试验机在β相区对TA15钛合金进行了热压缩试验,采用金相显微镜及EBSD取向差分析技术,研究了TA15钛合金β热变形中动态......
Trans. Nonferrous Met. Soc. China 24(2014) 1819-1829 Simulated and experimental investigation on discontinuous dynamic recrystallization of a near-a TA15 titanium alloy during isothermal hot... titanium alloy 1 Introduction The Ti-6Al-2Zr-1Mo-1V alloy (TA15) is a type of near-a titanium alloy that possesses a unique combination of properties such as high strength and toughness, low density......
Ductile fracture behavior of TA15 titanium alloy at elevated temperaturesLei Yang1,Bao-yu Wang1,Jian-guo Lin1,2,Hui-jun Zhao1,Wen-yu Ma11. School of Mechanical Engineering,University of Science... on the fracture behavior of TA15 titanium alloy. The microstructure and fracture surface of the alloy were observed by scanning electronic microscopy to analyze the potential fracture mechanisms under......
of titanium alloy. In principle, the compatibilities of Ti6Al4V-xTA15 alloys with TA15 and Ti6Al4V forgings need to be investigated, respectively. The compatibility of Ti6Al4V-xTA15 alloys with TA15 forgings... and corrosion resistance of titanium alloy. 2 Experimental 2.1 Powders preparation The powders employed were TA15 and Ti6Al4V spherical powders which were prepared by the plasma rotating electrode method......
Hot spinning of cylindrical workpieces of TA15 titanium alloyXU Wenchen,SHAN Debin,YANG Guoping,CHEN Yu,LU Yan,and KANG Dachang School of Materials Science and Engineering,Harbin Institute of Technology,Harbin 150001,China摘 要:In order to form large-diameter thin-wall cylindrical workpieces of TA15 titanium alloy,tube hot spinning experiments......
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......
TA15钛合金大锻件热处理强化及机制 马济民1,张旺峰1,王玉会1 (1.北京航空材料研究院钛合金研究室,北京,100095) 摘要:研究了TA15钛合金大型锻件退火温度和保温时间对审温和500℃高温拉伸性能的影响,结果表明:随着退火温度的升高,拉伸强度增大,在800-890℃温度范围内,室温强度升幅达90 MPa,500 ℃高温强度升幅达66 MPa;随保温时间延长,室温和500 oC高温拉伸强度呈峰值变化,保温3 h时最高.研究表明,退火温度提高,基体β转变组织分解析出第二相起到强化作用,提高了大锻件的强度. 关键词:TA15钛合金; 大锻件; 热处理; 析出强化; 再结晶; TA15 titanium alloy; large forging; heat treatment; precipitation hardening; recrystallization; [全文......
,焊接速度为300 mm/min.焊后进行真空650 ℃,4 h的去应力退火处理,消除焊接过程产生的残余应力. 表1 TA15钛合金的化学成分 Table 1 Chemical composition of TA15 titanium alloy (mass fraction, %) 焊接后去除余高,由焊缝顶部平面开始,分别在总厚度(h)的1/6,3/6,5/6位置..., 2007, 2(1): 10-13. [15] LIU Chang-kun, LIU Xin-ling. Fatigue crack propagation behavior in FZ and HAZ of TA15 titanium alloy welds[J]. Failure Analysis and Prevention, 2007, 2(1):10-13. [16] OH J K......
