吹砂对<strong>DD6</strong>单晶高温合金表面完整性和高周疲劳强度的影响

doi:10.11900/0412.1961.2023.00196

金属学报

2023, Vol. 59

Issue (9): 1201-1208 DOI: 10.11900/0412.1961.2023.00196

研究论文

本期目录 | 过刊浏览

吹砂对DD6单晶高温合金表面完整性和高周疲劳强度的影响

李嘉荣(

), 董建民, 韩梅, 刘世忠

北京航空材料研究院先进高温结构材料重点实验室北京 100095

Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy

LI Jiarong(

), DONG Jianmin, HAN Mei, LIU Shizhong

Science and Technology on Advanced High Temperature Structural Materials Laboratory, Beijing Institute of Aeronautical Materials, Beijing 100095, China

引用本文:

李嘉荣, 董建民, 韩梅, 刘世忠. 吹砂对DD6单晶高温合金表面完整性和高周疲劳强度的影响[J]. 金属学报, 2023, 59(9): 1201-1208.
Jiarong LI, Jianmin DONG, Mei HAN, Shizhong LIU. Effects of Sand Blasting on Surface Integrity and High Cycle Fatigue Properties of DD6 Single Crystal Superalloy[J]. Acta Metall Sin, 2023, 59(9): 1201-1208.

全文: PDF(3115 KB) HTML

摘要:

将标准热处理的试样分别采用粒径为150、124和100 μm白刚玉砂在0.5 MPa压力下吹砂，研究吹砂对第二代单晶高温合金DD6表面完整性的影响；对未吹砂和粒径150 μm吹砂试样分别进行760和980℃旋转弯曲高周疲劳性能测试，研究吹砂对DD6合金疲劳性能的影响。结果表明：吹砂会破坏单晶高温合金的表面完整性，使表面出现砂粒切削造成的不规则凹坑，改变表面形貌；砂粒粒径增加，表面粗糙度和显微硬度均增大；吹砂使大量位错在γ相通道中滑移，靠近表面区域位错密度较大；并且，大量位错剪切γ'相，形成反相畴界和层错；吹砂造成形变强化、引入残余应力；150 μm、0.5 MPa吹砂对DD6合金760℃旋转弯曲疲劳性能基本无影响，但会降低合金980℃疲劳性能，对低应力幅区疲劳寿命影响较大，使疲劳强度下降约7.3%。缺口效应、氧化损伤、形变强化和残余压应力的耦合作用导致吹砂与不吹砂试样疲劳寿命产生差异。

关键词 ：单晶高温合金, DD6, 表面完整性, 高周疲劳, 吹砂

Abstract：

DD6 is a second generation single crystal superalloy independently developed in China, which offers advantages such as high-temperature strength, stable structure, and satisfactory casting process performance. Currently, it is being widely used in development of aviation engine turbine blades. Sand blasting can be performed for surface cleaning and adjusting surface roughness of single crystal turbine blades and is an essential process in manufacturing of single crystal blades. Although sand blasting has been widely used in the manufacturing process of DD6 alloy turbine blades, only few reports studied the impact of sand blasting on the surface integrity and fatigue performance of DD6 alloy. Therefore, research is required to provide a theoretical basis for the safe service of DD6 alloy turbine blades. In this work, several specimens after a standard heat treatment are blasted with white corundum sand with 150, 124, and 100 μm diameters at 0.5 MPa to study the effect of sand blasting on the surface integrity of DD6 alloy; the rotary bending high cycle fatigue properties of the specimens without and with sand blasting (blasting with white corundum sand with 150 μm diameter) were tested at 760 and 980^oC, respectively, to study the effect of sand blasting on the alloy's fatigue property. The results show that sand blasting destroys the surface integrity of the single crystal superalloy, resulting in irregular pits on the surface caused by the cutting by sand particles while changing the surface morphology as well; the surface roughness and microhardness increase with sand particle size increase; after sand blasting, many dislocations slip in the γ phase, and the dislocation density near the surface is high. Additionally, many dislocations shear the γ′ phase, forming antiphase domain boundaries and stacking faults; sand blasting results in deformation strengthening and residual stress; blasting with 150 μm diameter sand at 0.5 MPa has a small effect on the rotary bending high cycle fatigue properties of DD6 alloy at 760^oC, but it considerably reduces the alloy's fatigue properties at 980^oC in the low stress amplitude region, decreasing the fatigue strength of the alloy by 7.3%. The combined action of the notch effect, oxidation damage, deformation strengthening, and residual compressive stress leads to the changes in fatigue life without and with sand blasting.

Key words： single crystal superalloy DD6 surface integrity high cycle fatigue sand blasting

收稿日期: 2023-05-04

ZTFLH:

TG132.3

作者简介: 李嘉荣，男，1962年生，研究员，博士

	服务

	把本文推荐给朋友
	加入引用管理器
	E-mail Alert
	RSS
	作者相关文章
	李嘉荣
	董建民
	韩梅
	刘世忠
44.8K

链接本文:

https://www.ams.org.cn/CN/10.11900/0412.1961.2023.00196 或 https://www.ams.org.cn/CN/Y2023/V59/I9/1201

图1 高周疲劳试样的形状和尺寸示意图

图2 不同粒径砂粒吹砂后DD6高温合金试样表面的三维和二维形貌

图3 不同粒径砂粒吹砂后试样硬度随距离表面深度的变化

图4 150 μm白刚玉砂0.5 MPa吹砂后DD6高温合金试样的位错形态

图5 未吹砂和粒径150 μm砂粒吹砂后DD6高温合金试样760和980℃的应力-寿命曲线

图6 未吹砂和粒径150 μm吹砂DD6高温合金试样在760和980℃旋转弯曲高周疲劳断口和疲劳源区形貌

图7 粒径150 μm吹砂试样760和980℃旋转弯曲高周疲劳断裂后的横截面组织

图8 150 μm吹砂后DD6高温合金试样760和980℃旋转弯曲高周疲劳断口附近的位错形态

1	Han L, Huang D W, Yan X J, et al. Combined high and low cycle fatigue life prediction model based on damage mechanics and its application in determining the aluminized location of turbine blade [J]. Int. J. Fatigue, 2019, 127: 120 doi: 10.1016/j.ijfatigue.2019.05.022
2	Wang R, Zhang B, Hu D, et al. Thermomechanical fatigue experiment and failure analysis on a nickel-based superalloy turbine blade [J]. Eng. Fail. Anal., 2019, 102: 35 doi: 10.1016/j.engfailanal.2019.04.023
3	Li J R, Xie H J, Han M, et al. High cycle fatigue behavior of second generation single crystal superalloy [J]. Acta Metall. Sin., 2019, 55: 1195
3	李嘉荣, 谢洪吉, 韩梅等. 第二代单晶高温合金高周疲劳行为研究 [J]. 金属学报, 2019, 55: 1195
4	Field M, Kahles J F. The surface integrity of machined-and-ground high strength steels [J]. DIMC Report, 1964, 210: 54
5	Zhao Z Y. Application of high strength alloy and technonolgy of anti-fatigue manufacturing [J]. Aeronaut. Manuf. Technol., 2007, (10): 30
5	赵振业. 高强度合金应用与抗疲劳制造技术 [J]. 航空制造技术, 2007, (10): 30
6	Wang R Z. Surface integrity and fracture resistance of engineering metallic materials and components [J]. China Surf. Eng., 2011, 24(5): 55
6	王仁智. 工程金属材料/零件的表面完整性及其断裂抗力 [J]. 中国表面工程, 2011, 24(5): 55
7	He B L, Deng H P. Research status and development trend of surface integrity [J]. Surf. Technol., 2015, 44(9): 140
7	何柏林, 邓海鹏. 表面完整性研究现状及发展趋势 [J]. 表面技术, 2015, 44(9): 140
8	Cheng Y M, Liu J, Fu Z H, et al. Effect of surface treatment on mechanical properties of 7B05 aluminum alloy MIG butt welded joints [J]. Hot Work. Technol., 2016, 45(9): 63
8	程永明, 刘建, 付正鸿等. 表面处理对7系铝合金MIG焊对接接头力学性能的影响 [J]. 热加工工艺, 2016, 45(9): 63
9	Ye Y, Zou G, Long W, et al. TLP repaired IN738LC superalloy with uneven surface defect gap width after post heat treatment: Microstructure and mechanical properties [J]. J. Alloys Compd., 2018, 748: 26 doi: 10.1016/j.jallcom.2018.02.343
10	Gao Y K, Yin Y F, Li X B, et al. Research on residual stress field of GH909 alloy by shot peening [J]. J. Mater. Eng., 2002, (4): 40
10	高玉魁, 殷源发, 李向斌等. GH909合金喷丸强化残余应力场的研究 [J]. 材料工程, 2002, (4): 40
11	Zhong L Q, Liang Y L, Yan Z, et al. Effect of shot peening on high cycle fatigue limit of FGH4097 P/M superalloys at room temperature [J]. Rare Met. Mater. Eng., 2018, 47: 2198
11	钟丽琼, 梁益龙, 严振等. 喷丸强化对FGH4097粉末高温合金室温高周疲劳极限的影响 [J]. 稀有金属材料与工程, 2018, 47: 2198
12	Li J R, Zhong Z G, Tang D Z, et al. A low-cost second generation single crystal superalloy DD6 [A]. Superalloys 2000 [C]. Warrendale, PA: TMS, 2000: 777
13	Li J R, Zhao J Q, Liu S Z, et al. Effects of low angle boundaries on the mechanical properties of single crystal superalloy DD6 [A]. Superalloys 2008 [C]. Warrendale, PA: TMS, 2008: 443
14	Gao Y K. Influence of shot peening on high temperature rotating bending fatigue property of DD6 single crystal superalloy [J]. Heat Treat. Met., 2009, 34(8): 60
14	高玉魁. 喷丸强化对DD6单晶高温合金高温旋转弯曲疲劳性能的影响 [J]. 金属热处理, 2009, 34(8): 60
15	Wang X, You H D, Li J R, et al. Influence of ceramic-shot-peening on surface integrity of DD6 single crystal superalloy [J]. J. Mater. Eng., 2014, (4): 53
15	王欣, 尤宏德, 李嘉荣等. 陶瓷弹丸喷丸强化对DD6单晶高温合金表面完整性的影响 [J]. 材料工程, 2014, (4): 53
16	Xiong J C, Li J R, Sun F L, et al. Microstructure of recrystallization and their effects on stress rupture property of single crystal superalloy DD6 [J]. Acta Metall. Sin., 2014, 50: 737 doi: 10.3724/SP.J.1037.2013.00561
16	熊继春, 李嘉荣, 孙凤礼等. 单晶高温合金DD6再结晶组织及其对持久性能的影响 [J]. 金属学报, 2014, 50: 737 doi: 10.3724/SP.J.1037.2013.00561
17	Mellali M, Grimaud A, Leger A C, et al. Alumina grit blasting parameters for surface preparation in the plasma spraying operation [J]. J. Therm. Spray Technol., 1997, 6: 217 doi: 10.1007/s11666-997-0016-6
18	Xie H J, Li J R, Han M, et al. Effect of over-temperature on microstructure and high cycle fatigue properties of DD6 single crystal superalloy [J]. Rare Met. Mater. Eng., 2018, 47: 2483
18	谢洪吉, 李嘉荣, 韩梅等. 超温对DD6单晶高温合金组织及高周疲劳性能影响 [J]. 稀有金属材料与工程, 2018, 47: 2483
19	Han M, Xie H J, Li J R, et al. Effect of recrystallization on axial high cycle fatigue properties of DD6 single crystal superalloy [J]. J. Mater. Eng., 2019, 47(6): 161
19	韩梅, 谢洪吉, 李嘉荣等. 再结晶对DD6单晶高温合金轴向高周疲劳性能的影响 [J]. 材料工程, 2019, 47(6): 161
20	Lukáš P, Kunz L, Svoboda M. High-temperature ultra-high cycle fatigue damage of notched single crystal superalloys at high mean stresses [J]. Int. J. Fatigue, 2005, 27: 1535 doi: 10.1016/j.ijfatigue.2005.06.006
21	Liu Y, Yu J J, Xu Y, et al. High cycle fatigue behavior of a single crystal superalloy at elevated temperatures [J]. Mater. Sci. Eng., 2007, A454-455: 357
22	Lamm M, Singer R F. The effect of casting conditions on the high-cycle fatigue properties of the single-crystal nickel-base superalloy PWA 1483 [J]. Metall. Mater. Trans., 2007, 38A: 1177
23	Zhu X, Shyam A, Jones J W, et al. Effects of microstructure and temperature on fatigue behavior of E319-T7 cast aluminum alloy in very long life cycles [J]. Int. J. Fatigue, 2006, 28: 1566 doi: 10.1016/j.ijfatigue.2005.04.016
24	Huang M. Creep strengthening mechanisms in Re-doping nickel-based single crystal superalloy and defect structure in single crystal blades [D]. Beijing: Tsinghua University, 2015
24	黄鸣. 含Re镍基单晶高温合金强化机理及单晶叶片的缺陷研究 [D]. 北京: 清华大学, 2015
25	Rae C M F, Zhang L. Primary creep in single crystal superalloys: Some comments on effects of composition and microstructure [J]. Mater. Sci. Technol., 2009, 25: 228 doi: 10.1179/174328408X369311
26	Yang Z X, Liu M, Deng C M, et al. Review on the pretreatment of substrate for thermal spray process [J]. China Surf. Eng., 2012, 25(2): 8
26	杨震晓, 刘敏, 邓春明等. 热喷涂基体表面前处理技术的研究进展 [J]. 中国表面工程, 2012, 25(2): 8
27	Sasahara H. The effect on fatigue life of residual stress and surface hardness resulting from different cutting conditions of 0.45%C steel [J]. Int. J. Mach. Tools Manuf., 2005, 45: 131 doi: 10.1016/j.ijmachtools.2004.08.002
28	Ghanem F, Sidhom H, Braham C, et al. Effect of near-surface residual stress and microstructure modification from machining on the fatigue endurance of a tool steel [J]. J. Mater. Eng. Perform., 2002, 11: 631 doi: 10.1361/105994902770343629
29	Zhang M, Wang W Q, Wang P F, et al. The fatigue behavior and mechanism of FV520B-I with large surface roughness in a very high cycle regime [J]. Eng. Fail. Anal., 2016, 66: 432 doi: 10.1016/j.engfailanal.2016.04.029
30	Ryu H R, Kim W S, Ha W II, et al. Effect of toe grinding on fatigue strength of ship structure [J]. J. Ship Prod., 2008, 24: 152
31	Remes H, Korhonen E, Lehto P, et al. Influence of surface integrity on the fatigue strength of high-strength steels [J]. J. Constr. Steel Res., 2013, 89: 21 doi: 10.1016/j.jcsr.2013.06.003
32	Ren J X, Hua D A. Grinding Principle [M]. Beijing: Publishing House of Electronics Industry, 2011: 242
32	任敬心, 华定安. 磨削原理 [M]. 北京: 电子工业出版社, 2011: 242
33	Xu R F, Zhou Y X, Yang S L, et al. Research status of influence mechanism of surface integrity on fatigue behavior of workpieces [J]. Aeronaut. Manuf. Technol., 2019, 62(14): 96
33	徐汝锋, 周永鑫, 杨慎亮等. 机械加工表面完整性影响试件疲劳性能的研究现状 [J]. 航空制造技术, 2019, 62(14): 96

[1]	张健, 王莉, 谢光, 王栋, 申健, 卢玉章, 黄亚奇, 李亚微. 镍基单晶高温合金的研发进展[J]. 金属学报, 2023, 59(9): 1109-1124.
[2]	赵鹏, 谢光, 段慧超, 张健, 杜奎. 两种高代次镍基单晶高温合金热机械疲劳中的再结晶行为[J]. 金属学报, 2023, 59(9): 1221-1229.
[3]	卢楠楠, 郭以沫, 杨树林, 梁静静, 周亦胄, 孙晓峰, 李金国. 激光增材修复单晶高温合金的热裂纹形成机制[J]. 金属学报, 2023, 59(9): 1243-1252.
[4]	王迪, 贺莉丽, 王栋, 王莉, 张思倩, 董加胜, 陈立佳, 张健. Pt-Al涂层对DD413合金高温拉伸性能的影响[J]. 金属学报, 2023, 59(3): 424-434.
[5]	苏震奇, 张丛江, 袁笑坦, 胡兴金, 芦可可, 任维丽, 丁彪, 郑天祥, 沈喆, 钟云波, 王晖, 王秋良. 纵向静磁场下单晶高温合金定向凝固籽晶回熔界面杂晶的形成与演化[J]. 金属学报, 2023, 59(12): 1568-1580.
[6]	张子轩, 于金江, 刘金来. 镍基单晶高温合金DD432的持久性能各向异性[J]. 金属学报, 2023, 59(12): 1559-1567.
[7]	李文文, 陈波, 熊华平, 尚泳来, 毛唯, 程耀永. 第二代单晶高温合金DD6高性能钎焊接头的组织及力学性能[J]. 金属学报, 2021, 57(8): 959-966.
[8]	王迪, 王栋, 谢光, 王莉, 董加胜, 陈立佳. Pt-Al涂层对一种镍基单晶高温合金抗热腐蚀行为的影响[J]. 金属学报, 2021, 57(6): 780-790.
[9]	徐静辉, 李龙飞, 刘心刚, 李辉, 冯强. 热力耦合对一种第四代镍基单晶高温合金1100℃蠕变组织演变的影响[J]. 金属学报, 2021, 57(2): 205-214.
[10]	张少华, 谢光, 董加胜, 楼琅洪. 单晶高温合金共晶溶解行为的差热分析[J]. 金属学报, 2021, 57(12): 1559-1566.
[11]	马德新, 赵运兴, 徐维台, 皮立波, 李重行. 高温合金单晶铸件中共晶组织分布的表面效应[J]. 金属学报, 2021, 57(12): 1539-1548.
[12]	和思亮, 赵云松, 鲁凡, 张剑, 李龙飞, 冯强. 热等静压对铸态及固溶态第二代镍基单晶高温合金显微缺陷及持久性能的影响[J]. 金属学报, 2020, 56(9): 1195-1205.
[13]	刘金来, 叶荔华, 周亦胄, 李金国, 孙晓峰. 一种单晶高温合金的弹性性能的各向异性[J]. 金属学报, 2020, 56(6): 855-862.
[14]	张哲峰,邵琛玮,王斌,杨浩坤,董福元,刘睿,张振军,张鹏. 孪生诱发塑性钢拉伸与疲劳性能及变形机制[J]. 金属学报, 2020, 56(4): 476-486.
[15]	赵旭,孙元,侯星宇,张洪宇,周亦胄,丁雨田. 取向偏差对镍基单晶高温合金钎焊接头组织与力学性能的影响[J]. 金属学报, 2020, 56(2): 171-181.

Viewed

Full text

Abstract

Cited

Shared

Discussed