IN718/FGH96惯性摩擦焊接头焊缝区微观组织状态与织构分布特征

张露; 张春波; 廖仲祥; 乌彦全; 张国栋; 周军

doi:10.7512/j.issn.1001-2303.2022.04.02

重点关注 | 浏览量 : 0 下载量: 26 CSCD: 0

PDF
导出
分享
收藏
专辑

IN718/FGH96惯性摩擦焊接头焊缝区微观组织状态与织构分布特征
Microstructure and Texture Distribution Characteristics in Weld Zone of IN718/FGH96 Inertial Friction Welded Joint
2022年52卷第4期页码：8-13
DOI： 10.7512/j.issn.1001-2303.2022.04.02

扫描看全文

张露，张春波，廖仲祥，等.IN718/FGH96惯性摩擦焊接头焊缝区微观组织状态与织构分布特征［J］.电焊机，2022，52（4）：8-13.

ZHANG Lu, ZHANG Chunbo, LIAO Zhongxiang, et al.Microstructure and Texture Distribution Characteristics in Weld Zone of IN718/FGH96 Inertial Friction Welded Joint[J].Electric Welding Machine, 2022, 52(4): 8-13.
张露，张春波，廖仲祥，等.IN718/FGH96惯性摩擦焊接头焊缝区微观组织状态与织构分布特征［J］.电焊机，2022，52（4）：8-13. DOI： 10.7512/j.issn.1001-2303.2022.04.02.

ZHANG Lu, ZHANG Chunbo, LIAO Zhongxiang, et al.Microstructure and Texture Distribution Characteristics in Weld Zone of IN718/FGH96 Inertial Friction Welded Joint[J].Electric Welding Machine, 2022, 52(4): 8-13. DOI： 10.7512/j.issn.1001-2303.2022.04.02.

摘要

采用SEM、EBSD等技术表征手段分析IN718+FGH96异质合金惯性摩擦焊接头焊缝区在焊态下的微观组织形貌及织构分布状态。结果表明，原始母材中的γ′、γ″及δ强化相消失，焊缝区转变为单一等轴γ相晶粒，IN718和FGH96侧焊缝区晶粒尺寸分别约为10 μm和15 μm。焊缝区再结晶晶体取向相对杂乱，致使晶体织构强度较弱，可忽略不计。动态再结晶后的焊缝区相邻晶体间以大角度晶界为主，大角度晶界占比达到65.1%。焊缝区大部分γ相的｛111｝<11-1>滑移系在X轴方向载荷下的Schmidt因子接近0.5，γ相晶体的｛111｝<11-1>滑移系在轴向力作用下更容易开动并逐渐形成大量的位错。五组拉伸试样均断裂于焊缝区，其抗拉强度均值为1 126.3 MPa，屈服强度均值为998.9 MPa。

Abstract

The microstructure and texture distribution in weld zone of IN718+FGH96 inertial friction welding joint were analyzed by means of SEM and EBSD. The results show that the γ', γ"and δ enhanced phases disappear in base material, and the weld zone transforms into a single equiaaxial γ phase grains. The size of weld zone grain on IN718 and FGH96 sides is about 10 μm and 15 μm, respectively. The orientation of the recrystallized crystal in weld zone is disorderly, resulting in weak crystal texture and can be ignored. The large Angle grain boundary is mainly between the adjacent crystals in the weld zone after dynamic recrystallization, and the large Angle grain boundary accounts for 65.1%. The Schmidt factor of {111}<11-1> slip system of γ phase in weld zone is close to 0.5 under the X-axis load.Thus, the {111}<11-1> slip system of γ phase crystal is easier to start and gradually form a large number of dislocations under the action of axial force. Five tensile specimens are all fractured in weld zone. The average tensile strength and yield strength of the specimens are 1126.3 MPa and 998.9 MPa respectively.

关键词

高温合金惯性摩擦焊背散射电子衍射分析高温拉伸性能织构分布

Keywords

high temperature alloyinertia friction weldingEBSDhigh tamperature tensile propertytexture distribution

references

张露，韩秀峰，王伦. 商用航空发动机盘轴类转动件焊接工艺分析［J］. 航空制造技术， 2015（11）： 96-98，115.

ZHANG Lu，HAN Xiufeng，WANG Lun.Welding Process Analysis of Disk and Shaft Rotor Component of Commercial Aeroengine［J］. Aeronautical Manufacturing Technology，2015（11）： 96-98，115.

宁永权，李辉，姚泽坤，等. FGH96高温合金的再结晶组织特征［J］. 稀有金属材料与工程， 2016， 45（05）： 1225-1229.

NING Yongquan，LI Hui，YAO Zekun，et al. Recrystallization Characterization of FGH96 Superalloy［J］. Rare Metal Materials and Engineering， 2016， 45（05）： 1225-1229.

赵新宝，谷月峰，鲁金涛，等. GH4169合金的研究新进展［J］. 稀有金属材料与工程， 2015， 44（03）： 768-

ZHAO Xinbao，GU Yuefeng，LU Jintao，et al. New Research Development of Superalloy GH4169［J］. Rare Metal Materials and Engineering， 2015， 44（03）： 768-

Dang X L. The Achievements of Advanced Manufacturing Techniques in Aviation and Aerospace Industries［J］. International Journal of Plant Engineering and Management， 2012， 17（3）： 145-152.

A Chamanfar， M Jahazi， J Cormier. A Review on Inertia and Linear Friction Welding of Ni-Based Superalloys［J］. Metallurgical & Materials Transactions A， 2015， 46（4）： 1639-1669.

张春波，周军，张露，等. GH4169合金与FGH96合金惯性摩擦焊接头组织和力学性能［J］. 焊接学报， 2019， 40（06）： 40-45，162-163.

ZHANG Chunbo，ZHOU Jun，ZHANG Lu，et al. Microstructure and properties of GH4169 nickel-based superalloy and FGH96 nickel-based powder metallurgy superalloy inertial friction welding joint［J］. Transactions of the China Welding Institution，2019， 40（06）： 40-45，162-163.

S Ji， J G Liu， L G Zhang， et al. Effect of Welding Process Parameters on Material Flow Behavior of FGH96 Alloy in Inertia Friction Welding［J］. Journal of Mechanical Engineering， 2012， 48（12）： 69-74.

Bennett， J Christopher. Inertia friction welding of high strength aerospace alloys［D］. University of Nottingham， 2007.

韩秀峰，张露，钱凌翼. 固态焊接在民用航空发动机中的应用［J］. 航空制造技术， 2012（13）： 55-58.

HAN Xiufeng，ZHANG Lu，QIAN Lingyi. Application of Solid State Welding in Civil Aircraft Aeroengine［J］. Aeronautical Manufacturing Technology， 2012（13）： 55-58.

Wang X F， Zou J W， Davies C M， et al. Microstructure Characterization of Inertial Friction Welding Zone for Nickel-Based Superalloy FGH96［J］. Materials Science Forum， 2017， 898：1110-1116.

编辑部网址：http：//www.71dhj.comhttp://www.71dhj.com

文章被引用时，请邮件提醒。

提交

惯性摩擦焊在商用航空发动机中的应用与研究现状

Ti52钛合金/304不锈钢异种材料惯性摩擦焊接技术研究

高温合金导管全位置自动焊接工艺