欧阳德来,杜海明,鲁世强,崔霞,董显娟

• 1:南昌航空大学轻合金加工科学与技术国防重点学科实验室
• 2:江西师范大学
• 3:南昌航空大学航空制造学院

摘要(Abstract)：

利用可控冷却速度热处理装置对Ti-6Al-2Zr-1Mo-1V合金进行了β热处理实验,并研究了该合金原始β晶粒尺寸和冷却速度对片层组织的影响。结果表明,原始β晶界是α片层的主要形核地点,原始β晶粒内可形成多个α集束团,同一α集束内α片层几乎成同一取向;随原始β晶粒尺寸降低,集束尺寸降低,而原始β晶粒尺寸对α片层厚度影响不大;随冷却速度增加,α片层厚度先快速降低,后缓慢降低,而集束尺寸则呈线性降低;α片层厚度与冷却速度呈反比关系:λ=3.94+9.24/v。

关键词(KeyWords)： Ti-6Al-2Zr-1Mo-1V钛合金;β热处理工艺;片层组织

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51261020);; 航空科学基金(2014ZE56015);; 轻合金加工科学与技术国防重点学科实验室(GF201401007)

作者(Author): 欧阳德来,杜海明,鲁世强,崔霞,董显娟

DOI: 10.13289/j.issn.1009-6264.2016.12.008

参考文献(References)：

• [1]Quan G,Wu D,Luo G,et al.Dynamic recrystallization kinetics inαphase of as-cast Ti-6Al-2Zr-1Mo-1V alloy during compression at different temperatures and strain rates[J].Materials Science and Engineering A,2014,589:23-33.
• [2]Quan G,Wang Y,Yu C,et al.Hot workability characteristics of as-cast titanium alloy Ti-6Al-2Zr-1Mo-1V:A study using processing map[J].Materials Science and Engineering A,2013,564:46-56.
• [3]Liu Y,Zhu J,Wang Y,et al.Hot compressive deformation behavior and microstructure evolution of Ti-6Al-2Zr-1Mo-1V alloy at 1073 K[J].Materials Science and Engineering A,2008,490(1):113-116.
• [4]张旺峰,黄旭,李兴无,等.钛合金的设计方法及其研究进展[J].材料导报,2005,19(3):1-4.ZHANG Wang-feng,HUANG Xu,LI Xing-wu,et al.Design method and current research development of titanium alloys[J].Materials Review,2005,19(3):1-4.
• [5]曹春晓.选材判据的变化与高损伤容限钛合金的发展[J].金属学报,2002,38(1):4-11.CHAO Chun-xiao.Change of material selection criterion and development of high damage-tolerant titanium alloy[J].Acta Metallurgica Sinica,2002,38(1):4-11.
• [6]党薇,薛祥义,李金山,等.TC21合金片层组织特征对其断裂韧性的影响[J].中国有色金属学报,2010,20(1):16-20.DANG Wei,XUE Xiang-yi,LI Jin-shan,et.Influence of lamellar microstructure feature on fracture toughness of TC21 alloy[J].The Chinese Journal of Nonferrous Metals,2010,20(1):16-20.
• [7]Ping G,Yongqing Z,Weidong Z.Fatigue crack growth behavior in TC4-DT titanium alloy with different lamellar microstructures[J].Rare Metal Materials and Engineering,2015,44(2):277-281.
• [8]Ghonem H.Microstructure and fatigue crack growth mechanisms in high temperature titanium alloys[J].International Journal of Fatigue,2010,32(9):1448-1460.
• [9]祝力伟,王新南,朱知寿,等.损伤容限型TC4-DT钛合金近门槛区疲劳裂纹扩展行为研究[J].稀有金属材料与工程,2014,43(06):1342-1346.ZHU Li-wei,WANG Xin-nan,ZHU Zhi-shou,et al.Near-threshold fatigue crack propagation behavior of TC4-DT damage tolerance titanium alloys[J].Rare Metal Materails and Engineering,2014,43(06):1342-1346.
• [10]Guo P,Zhao Y,Zeng W,et al.The effect of microstructure on the mechanical properties of TC4-DT titanium alloys[J].Materials Science and Engineering A,2013,563(0):106-111.
• [11]Peng X,Guo H,Wang T,et al.Effects ofβtreatments on microstructures and mechanical properties of TC4-DT titanium alloy[J].Materials Science and Engineering A,2012,533(30):55-63.
• [12]Zhang Z,Qin J,Zhang Z,et al.Effect ofβheat treatment temperature on microstructure and mechanical properties of in situ titanium matrix composites[J].Materials and Design,2010,31(9):4269-4273.
• [13]李士凯,惠松骁,叶文君,等.微观组织对TA15 ELI钛合金损伤容限性能的影响[J].中国有色金属学报,2007,17(7):1119-1123.LI Shi-kai,HUI Song-xiao,YE Wen-jun,et al.Effects of microstructure on damage tolerance properties of TA15 ELI titanium alloy[J].The Chinese Journal of Nonferrous Metals,2007,17(7):1119-1123.
• [14]张旺峰,李兴无,马济民,等.组织类型对钛合金损伤容限性能的影响及电镜原位观察[J].航空材料学报,2006,26(3):313-314.ZHANG Wang-feng,LI Xing-wu,MA Ji-min,et al.Effect of microstructure on damage tolerance properties and SEM in-situ observation for titanium alloy[J].Journal of Aeronautical Materials,2006,26(3):313-314.
• [15]Zhang X,Kou H,Li J,et al.Evolution of the secondaryαphase morphologies during isothermal heat treatment in Ti-7333 alloy[J].Journal of Alloys and Compounds,2013,577:516-522.
• [16]刘文胜,黄伯云,唐建成,等.全层状Ti Al合金层片生长及其影响因素[J].中国有色金属学报,2003,13(1):153-156.LIU Wen-sheng,HUANG Bai-yun,TANG Jian-cheng,et al.Lamellae growth in fully lamellar Ti Al alloys and its factors[J].The Chinese Journal of Nonferrous Metals,2003,13(1):153-156.
• [17]辛社伟.钛合金固态相变的归纳与讨论(Ⅴ)——相与相变谈[J].钛工业进展,2013,30(3):12-15.XIN She-wei.Inductions and discussions of solid state phase transformation of titanium alloy(Ⅴ)-talking about phase and phase-transformation[J].Titanium Industry Progress,2013,30(3):12-15.
• [18]Williams A J,Cahn R W,Barrett C S.The crystallography of theβ/αtransformation in titanium[J].Acta Metallurgica,1954,2(1):117-128.
• [19]Bhattacharyya D,Viswanathan G B,Denkenberger R,et al.The role of crystallographic and geometrical relationships betweenαandβphases in anα/βtitanium alloy[J].Acta Materialia,2003,51(16):4679-4691.

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