Impact fretting wear of Inconel 690 tube with different supporting structure under cycling low kinetic energy

• Published in: Wear Vol. 376-377; pp. 625 - 633
• Main Authors: Sun, Yang, Cai, Zhen-bing, Chen, Zhi-qiang, Qian, Hao, Tang, Li-chen, Xie, Yongcheng, Zhou, Zhong-rong, Zhu, Min-hao
• Format: Journal Article
• Language: English
• Published: Amsterdam Elsevier B.V 15.04.2017; Elsevier Science Ltd
• Subjects: Cantilever beams; Clamping; Contact force; Cycles; Deformation mechanisms; Energy absorption; Fretting; Impact analysis; Impact fretting wear; Impact kinetic energy; Impact loads; Inconel 690; Kinetic energy; Kinetics; Morphology; Nickel base alloys; Superalloys; Supporting structure; Thin walls; Two dimensional analysis; Wear; Wear mechanisms; Impact kinetic energy; Impact fretting wear; Inconel 690; Supporting structure
• ISSN: 0043-1648; 1873-2577
• DOI: 10.1016/j.wear.2017.01.011

The impact fretting wear behavior of a 690 alloy tube affected by low-impact cycling kinetic energy was investigated. The Inconel 690 alloy specimen was clamped by cantilever and simple supported beam structures for support. The interface response was affected by the clamping situation, and material wear was affected by the change in the interface response. The energy loss, contact force versus time and frequency, energy absorption, and deformation of the material (thin wall tube) during impact were analyzed. The worn surfaces and cross-sectional morphologies were observed with an optical microscope and a 2D surface profiler to analyze the impact fretting wear mechanism under the two support structures. In the two clamping structures, wear decreased when the span increased, and material wear showed a high correlation with the peak impact force and absorbed energy. The wear mechanism of the alloy 690 specimen was delamination. •Influence of support structure on low velocity impact damage of tubes.•Absorption and dissipation of energy during the process of impact.•The impact process is analyzed by a two-degree-of-freedom damped vibration model.•The correlation coefficient is used to study the reasons of wear.