超音速微粒轰击诱导表面纳米化对TC11钛合金组织和力学性能的影响

武永丽; 王迎辉; 熊毅; 张鑫; 杨苗苗

超音速微粒轰击诱导表面纳米化对TC11钛合金组织和力学性能的影响

1. 河南科技大学材料科学与工程学院, 河南洛阳 471000;
2. 中国船舶集团有限公司第七二五研究所, 河南洛阳 471023

基金项目:

国家自然科学基金项目(Nos.U1804146、52111530068)

河南省外专引智计划项目(HNGD2020009)

详细信息

作者简介:
武永丽,女,1996年生,硕士研究生,研究方向为钛合金表面改性。E-mail:w18839727903@163.com

中图分类号: TG146
计量
- 文章访问数: 51
- HTML全文浏览量: 14
- PDF下载量: 11
- 被引次数: 0
出版历程
- 收稿日期: 2022-06-22
- 网络出版日期: 2023-01-12

Effect of Supersonic Fine Particle Bombardment Induced Surface Nanocrystallization on the Microstructure and Mechanical Properties of TC11 Alloy

1. School of Materials Science and Engineering, Henan University of Science and Technology, Luoyang 471023, China;
2. Luoyang Ship Material Research Institute, Luoyang 471023, China

摘要

摘要: 采用超音速微粒轰击(SFPB)表面纳米化技术,在TC11钛合金表层构筑了一定层深的梯度纳米结构,研究了SFPB气体压力对TC11钛合金微观组织和力学性能的影响。结果表明,在低气体压力(0.5 MPa)下,形成了25 μm厚的严重塑性变形层,表层晶粒细化至纳米量级(17.7 nm)。随着气体压力的增大,表层纳米晶尺寸降低,严重塑性变形(SPD)层增大,在高气体压力(1.5 MPa)下,表层纳米晶尺寸和严重塑性变形层深度分别为9.4 nm和51 μm。随着SFPB气体压力的增大,表层显微硬度及硬化层深度逐渐增加,屈服强度、抗拉强度显著增加,而伸长率变化不大,断口形貌从典型的韧性断裂向韧-脆性混合断裂转变。
- 超音速微粒轰击 /
- TC11钛合金 /
- 片层组织 /
- 表面纳米化 /
- 力学性能
Abstract: The supersonic fine particle bombardment (SFPB) surface nanocrystallization technique is used to construct a gradient nanostructure with a certain layer depth on the surface of TC11 alloy, and the effect of SFPB gas pressure on the microstructure and mechanical properties of TC11 alloy is investigated. The results showed that a 25 μm-thick of severe plastic deformed layer is formed at a small gas pressure (0.5 MPa), and the surface grains are refined to the nanometer scale (17.7 nm). With the increase of gas pressure, the surface nanocrystal size decreases and the SPD layer increases. At the high gas pressure (1.5 MPa), the surface nanocrystal size and the depth of SPD layer are 9.4 nm and 51 μm, respectively. With the increase of SFPB gas pressure, the surface microhardness and the depth of hardened layer gradually increase, and the yield and tensile strengths increase significantly, while the elongation does not change much. The fracture morphology changes from the typical ductile fracture to the mixed ductile-brittle fracture.
- supersonic fine particle bombardment /
- TC11 alloy /
- lamellar microstructure /
- surface nanocrystallization /
- mechanical properties

HTML全文

参考文献(23)

[1]	ZHANG C W, FU T L, CHEN H Y, et al. Microstructure evolution of surface gradient nanocrystalline by shot peening of TA17 titanium alloy[J]. Metallurgical and Materials Transactions A, 2021, 52(5):1790-1798.
[2]	LIU Y G, LI H M, LI M Q. Roles for shot dimen-sion, air pressure and duration in the fabrication of nanocrystalline surface layer in TC17 alloy via high energy shot peening[J]. Journal of Manufacturing Processes, 2020, 56:562-570.
[3]	DAI S J, ZHU Y T, HUANG Z W. Microstructure evolution and strengthening mechanisms of pure titanium with nano-structured surface obtained by high energy shot peening[J]. Vacuum, 2016, 125:215-221.
[4]	徐圣航, 沈凯杰, 张惠斌, 等. 钛及钛合金表面自纳米化行为研究进展[J]. 中国有色金属学报, 2021, 31(11):3141-3160.
[5]	熊天英, 刘志文, 李智超, 等. 超音速微粒轰击金属表面纳米化新技术[J]. 材料导报, 2003, 17(3):69-71.
[6]	ZHOU T, XIONG Y, CHEN Z G, et al. Effect of surface nano-crystallization induced by supersonic fine particles bombarding on microstructure and mechanical properties of 300M steel[J]. Surface and Coatings Technology, 2021, 421:127381.
[7]	LIU K J, CUI X F, DONG M L, et al. Mechanism of diffusion promotion of carbon atoms during carburization of 20Cr2Ni4A alloy steel after lanthana-bearing supersonic fine particle bombarding pretreatment[J]. Surface and Coatings Technology, 2021, 425:127702.
[8]	GAO H M, CHEN W G, ZHANG Z J. Evolution mechanism of surface nano-crystallization of tungste-ncopper alloys[J]. Materials Letters, 2016, 176:181-184.
[9]	ZHANG Y X, YANG J H, GE L L, et al. Research on mechanism of surface nanocrystalline layer in 2219 Al alloy induced by supersonic fine particles bombarding[J]. International Journal of Engineering Resear-ch in Africa, 2016, 24:1-8.
[10]	ZHANG B S, DONG Q S, BA Z X, et al. Tribologic-al properties of surface-textured and plasma-nitrided pure titanium under oil lubrication condition[J]. Journal of Materials Engineering and Performance, 2018, 27(1):186-193.
[11]	葛利玲, 袁战伟, 井晓天, 等. 纯钛(TA2)表面纳米化及其热稳定性研究[J]. 稀有金属材料与工程, 2011, 40(7):1239-1242.
[12]	GE L L, YUAN Z W, HAN Z H. Creep behavior of commercially pure titanium TA2 after supersonic fine particles bombardment[J]. Journal of Materials Engineering and Performance, 2019, 28(2):1141-1150.
[13]	赵坤, 王敏, 蔺成效, 等. TC17钛合金自表面纳米化机制及组织演化[J]. 稀有金属材料与工程, 2013, 42(10):2048-2052.
[14]	拓川, 王敏, 赵坤, 等. TC17钛合金表面自纳米化及拉伸试样断口形貌[J]. 塑性工程学报, 2013, 20(3):111-115.
[15]	ZHANG C H, HU K, ZHENG M, et al. Effect of surface nanocrystallization on fatigue properties of Ti-6Al-4V alloys with bimodal and lamellar structure[J]. Materials Science and Engineering:A, 2021, 813:141142.
[16]	WU Y L, XIONG Y, LIU W, et al. Effect of supersonic fine particle bombardment on microstructure and fatigue properties of Ti-6.5Al-3.5Mo-1.5Zr-0.3Si titanium alloy at different temperatures[J]. Surface and Coatings Technology, 2021, 421:127473.
[17]	孙汝剑, 李刘合, 朱颖, 等. 激光冲击强化对TC17钛合金微观组织及拉伸性能的影响[J]. 稀有金属材料与工程, 2019, 48(2):491-499.
[18]	高玉魁, 陶雪菲. 高速冲击表面处理对金属材料力学性能和组织结构的影响[J]. 爆炸与冲击, 2021, 41(4):4-29.
[19]	YANG C, LIU Y G, LI M Q. Characteristics and formation mechanisms of defects in surface layer of TC17 subjected to high energy shot peening[J]. Applied Surface Science, 2020, 509:144711.
[20]	张银霞, 杨鑫, 原少帅, 等. 喷丸工艺对DC53钢表面完整性的影响试验研究[J]. 郑州大学学报(工学版), 2021, 42(3):76-80.
[21]	罗高丽, 张凌峰, 熊毅, 等. 激光冲击强化对Ti-6Al-3Nb-2Zr-1Mo钛合金组织与性能的影响[J]. 中国激光, 2022, 49(8):215-226.
[22]	陈正阁, 武永丽, 薛全喜, 等. 激光冲击强化对片层TC11钛合金组织和性能的影响[J]. 表面技术, 2022, 51(7):343-352.
[23]	ZHANG H P, CAI Z Y, WAN Z D, et al. Microstructure and mechanical properties of laser shock peened 38CrSi steel[J]. Materials Science and Engineering:A, 2020, 788:139486.