航天推进技术研究院主办
[1]杨兴远,魏红伟,张静,等.激光选区熔化成形TA7钛合金各向异性分析[J].火箭推进,2023,49(04):99-105.
YANG Xingyuan,WEI Hongwei,ZHANG Jing,et al.Anisotropy analysis of laser selective melting forming TA7 titanium alloy[J].Journal of Rocket Propulsion,2023,49(04):99-105.
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YANG Xingyuan,WEI Hongwei,ZHANG Jing,et al.Anisotropy analysis of laser selective melting forming TA7 titanium alloy[J].Journal of Rocket Propulsion,2023,49(04):99-105.
激光选区熔化成形TA7钛合金各向异性分析
《火箭推进》[ISSN:1672-9374/CN:CN 61-1436/V]
卷:
49
期数:
2023年04期
页码:
99-105
栏目:
目次
出版日期:
2023-08-25
- Title:
- Anisotropy analysis of laser selective melting forming TA7 titanium alloy
- 文章编号:
- 1672-9374(2023)04-0099-07
- Keywords:
- laser selective melting; TA7 titanium alloy; texture; anisotropy; heat treatment
- 分类号:
- TG146.23
- 文献标志码:
- A
- 摘要:
- 采用激光选区熔化成形技术(selective laser melting,SLM)制备了不同成形角度的TA7钛合金,分析了成形角度以及热处理对成形合金显微组织、织构及力学性能的影响。结果表明:由于SLM成形技术凝固较快的特点,导致成形TA7钛合金的显微组织受成形角度影响较为显著,为平行于成形方向的柱状β晶粒,晶内均为快速凝固形成的生成α'马氏体; 成形合金存在<0001>织构,成形角度为30°时,<0001>织构的取向密度指数达到最高的15.05,Schmid因子为4.35; 在显微组织与织构差异的影响下,成形合金的性能具有显著的各向异性,随着成形角度的增加,合金的强度逐渐升高,塑性呈现降低的趋势; 经过热处理后,合金的显微组织转变为等轴晶,织构显著弱化,合金的力学性能实现了各向同性。基于上述研究,采用激光选区熔化成形技术可成形具有复杂流道结构的TA7钛合金级间壳体构件。
- Abstract:
- Selective laser melting(SLM)was used to produce TA7 titanium alloy with different forming angles. The effects of forming angles and heat treatment on the microstructure, texture and mechanical properties of the alloy were analyzed. The results show that the microstructure of the formed TA7 titanium alloy was significantly affected by the forming angle due to the fast solidification of SLM forming technology. The columnar β grains were parallel to the forming direction, and the α' martensite was formed by rapid solidification in the crystals. When the forming angle was 30°, the orientation density index of the <0001> texture reached the highest 15.05 and Schmid factor was 4.35. Under the influence of microstructure and texture differences, the properties of the alloy had significant anisotropy. With the increase of forming angle, the strength of the alloy increased gradually, and the plasticity of the alloy decreased. After heat treatment, the microstructure of the alloy changed to equiaxed crystal, the texture was weakened significantly, and the mechanical properties of the alloy achieved isotropy. Based on the above research, the TA7 titanium alloy interstage shell with complex runner structure was fabricated by laser selective melting forming technology.
参考文献/References:
[1] 王博,蒋平,赵骞,等.氢氧火箭发动机组件研制阶段可靠性技术综述[J].火箭推进,2021,47(2):1-8.
WANG B,JIANG P,ZHAO Q,et al.Review on reliability technology of hydrogen-oxygen rocket engine components in development[J].Journal of Rocket Propulsion,2021,47(2):1-8.
[2] 孙纪国,何学青,阳代军,等.大推力氢氧发动机关键制造技术[J].火箭推进,2022,48(2):117-126.
SUN J G,HE X Q,YANG D J,et al.Key manufacturing technology for large thrust LH2/LOx cycle engine[J].Journal of Rocket Propulsion,2022,48(2):117-126.
[3] 左蔚,宋梦华,杨欢庆,等.增材制造技术在液体火箭发动机应用述评[J].火箭推进,2018,44(2):55-65.
ZUO W,SONG M H,YANG H Q,et al.Application of additive manufacturing technology in liquid rocket engine[J].Journal of Rocket Propulsion,2018,44(2):55-65.
[4] THIJS L,VERHAEGHE F,CRAEGHS T,et al.A study of the microstructural evolution during selective laser melting of Ti-6Al-4V[J].Acta Materialia,2010,58(9):3303-3312.
[5] 姜沐池,任德春,蔡雨升,等.硼含量对激光熔覆沉积TC4钛合金显微组织与力学性能影响[J].稀有金属材料与工程,2022,51(10):3777-3784.
[6] VILARO T,COLIN C,BARTOUT J D.As-fabricated and heat-treated microstructures of the Ti-6Al-4V alloy processed by selective laser melting[J].Metallurgical and Materials Transactions A,2011,42(10):3190-3199.
[7] 辛如意,兰亮,何博.选区激光熔化增材制造钛合金的疲劳性能研究进展[J].材料科学与工程学报,2022,40(4):706-716.
[8] 刘炳森,张述泉,张纪奎,等.层间冷却对激光增材制造TC17钛合金组织和拉伸性能的影响[J].中国激光,2022,49(14):130-140.
[9] TAN X P,KOK Y,TAN Y J,et al.Graded microstructure and mechanical properties of additive manufactured Ti-6Al-4V via electron beam melting[J].Acta Materialia,2015,97:1-16.
[10] SUO H B,CHEN Z Y,LIU J R,et al.Microstructure and mechanical properties of Ti-6Al-4V by electron beam rapid manufacturing[J].Rare Metal Materials and Engineering,2014,43(4):780-785.
[11] 孙文博,马玉娥.选区激光熔化TC4钛合金疲劳裂纹扩展行为研究[J].航空科学技术,2022,33(3):71-76.
[12] 王尧,阎笑盈,满成,等.不同打印角度SLM-Ti6Al4V组织结构及其在含氟离子溶液中的腐蚀行为[J].工程科学学报,2021,43(5):676-683.
[13] WEI K W,WANG Z M,ZENG X Y.Preliminary investigation on selective laser melting of Ti-5Al-2.5Sn α-Ti alloy:From single tracks to bulk 3D components[J].Journal of Materials Processing Technology,2017,244:73-85.
[14] 吴冬冬,钱远宏,李明亮,等.激光复合增材制造TA15钛合金组织与拉伸性能研究[J].应用激光,2020,40(4):615-620.
[15] 欧阳德来,鲁世强,崔霞,等.TB6钛合金热变形诱导马氏体转变[J].中国有色金属学报,2010,20(12):2307-2312.
[16] SHI R,DIXIT V,FRASER H L,et al.Variant selection of grain boundary α by special prior β grain boundaries in titanium alloys[J].Acta Materialia,2014,75:156-166.
[17] 赵子博,王清江,刘建荣,等.Ti60合金棒材中的织构及其对拉伸性能的影响[J].金属学报,2015,51(5):561-568.
[18] REN Y M,LIN X,FU X,et al.Microstructure and deformation behavior of Ti-6Al-4V alloy by high-power laser solid forming[J].Acta Materialia,2017,132:82-95.
[19] 王振,甘春雷,李锋,等.Zr含量对工业纯铝组织及性能的影响[J].材料研究与应用,2022,16(2):253-261.
[20] 席国强,邱建科,雷家峰,等.Ti-6Al-4V合金的室温蠕变行为[J].材料研究学报,2021,35(12):881-892.
[21] 丁灿,汪常亮,李峰,等.固溶-冷速-时效对TC4-DT合金显微组织和力学性能的影响[J].稀有金属材料与工程,2020,49(3):962-967.
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备注/Memo
收稿日期:2022-12-30; 修回日期:2023-02-24
基金项目:中国科学院创新交叉团队项目(JCTD-2020-10)
作者简介:杨兴远(1997—),男,硕士,研究领域为钛合金增材制造。
通信作者:任德春(1991—),男,博士,研究领域为金属材料加工、钛合金增材制造。
更新日期/Last Update:
1900-01-01