Enhancing elevated-temperature fretting wear performance of GH4169 by tuning wear mechanism through laser shock peening

被引：33

作者：

Zhao, Wang ^{[1
,3
]}

He, Weifeng ^{[1
,2
,3
]}

Liang, Xiaoqing ^{[2
]}

Huang, Zhuobin ^{[4
]}

Zhou, Qing ^{[4
]}

Pang, Zhicong ^{[1
,3
]}

Song, Jingdong ^{[1
,3
]}

Hu, Shuang ^{[2
]}

Cui, Luqing ^{[1
,3
]}

Luo, Sihai ^{[2
]}

机构：

[1] Xi An Jiao Tong Univ, Natl Key Lab Aerosp Power Syst & Plasma Technol, Xian 710049, Shaanxi, Peoples R China

[2] AF Engn Univ, Natl Key Lab Aerosp Power Syst & Plasma Technol, Xian 710038, Shaanxi, Peoples R China

[3] Xi An Jiao Tong Univ, Inst Aeronaut Engine, Sch Mech Engn, Xian 710049, Shaanxi, Peoples R China

[4] Northwestern Polytech Univ, State Key Lab Solidificat Proc, Ctr Adv Lubricat & Seal Mat, Xian 710072, Shaanxi, Peoples R China

来源：

TRIBOLOGY INTERNATIONAL | 2024年 / 192卷

基金：

中国国家自然科学基金;

关键词：

GH4169; superalloy; Laser shock peening; Elevated temperature; Fretting wear performance; OXIDATION; BEHAVIOR;

D O I：

10.1016/j.triboint.2023.109215

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

Turbine disks and blades made of GH4169 for turbine engines are highly prone to fretting wear damage. In this work, we used laser shock peening (LSP) to improve the elevated-temperature fretting wear performance of GH4169, and the corresponding underlying mechanisms are also systematically investigated. Fretting wear experiments conducted on specimens following LSP treatment reveal that the wear resistance of GH4169 was significantly improved, namely a 12.7% reduction in average friction coefficient and a 67.0% decrease in wear rate. Multiscale electron microscopy characterizations reveal that the gradient microstructures induced by LSP serve as the main contributor, which promotes the transition of mechanisms from adhesive wear to abrasive wear, then leading to an exceptional fretting wear performance.

引用

页数：12

共 32 条

[1] Selective Growth of Low Stored Energy Grains During δ Sub-solvus Annealing in the Inconel 718 Nickel-Based Superalloy [J].