Paper Title:
Structure of Emulsion Cavitation Jet and Jet Peening Impact on the Fatigue of Plan Carbon Steel Q235A
  Abstract

Due to developing the strengthening effect of liquid jet peening on the surface modification for metallic materials, in this study, an emulsion jet peening is produced by injecting a high-speed emulsion jet into an emulsion filled tank. The test system and fixed emulsion of cavitation jet was developed. High speed photography technique was used to observe and analysis the structure of emulsion cavitation jet at various upstream pressures . The results indicate that the structure of emulsion cavitation jet in terms of jet impact pressure, intensive degree and uniformity is better than that water jet. The jet structure depends on the jet pressure. The cavitation jet length increases rapidly at the initial stage and then it stabilizes after few milliseconds. The stabilized length of jet increases and the diverges angle decreases with increasing pressures. Specimens made of plan carbon steel (Q235A, China standard) were exposed to emulsion jet peening at the stand-off distances of 20 mm with a constant upstream pressure, 20 MPa for 60 s. The fatigue test shows that the crack initiation life by treatment of emulsion jet peening increases about 12.5% and 20.2% compared to water jet and unpeened specimen respectively.

  Info
Periodical
Advanced Materials Research (Volumes 189-193)
Edited by
Zhengyi Jiang, Shanqing Li, Jianmin Zeng, Xiaoping Liao and Daoguo Yang
Pages
476-483
DOI
10.4028/www.scientific.net/AMR.189-193.476
Citation
Z. Sun, Y. W. Sui, J. Li, Y. N. Zhou, "Structure of Emulsion Cavitation Jet and Jet Peening Impact on the Fatigue of Plan Carbon Steel Q235A", Advanced Materials Research, Vols. 189-193, pp. 476-483, 2011
Online since
February 2011
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: Hitoshi Soyama, Mitsuhiro Mikami
Abstract:Peening method using cavitation impacts have been developed. In this peening method, cavitation bubbles were generated by a cavitating jet....
162
Authors: B. Han, Dong Ying Ju
Abstract:As a novel surface strengthening technique, Water-jet cavitation peening has been applied to improve the fatigue life by inducing the...
137
Authors: Xiu Juan Zhao, Jun Wen Wang, Chun Huan Chen, Yuan Sun, Rui Ming Ren, Dong Ying Ju
Abstract:Comparing with conventional mechanical shot peening (SP) technique, water cavitation peening (WCP) experiments of Almen strips were carried...
1446
Authors: Zhao Long Ge, Yi Yu Lu, Ji Ren Tang, Ke Hu, Wen Feng Zhang
Abstract:To explore the relationship among the erosion ability of high-pressure cavitating water jets, hydraulic parameters and rock nature with a...
2130
Authors: Xin Hua Wang, Zhi Jie Li, Shu Wen Sun, Gang Zheng
Chapter 2: Applied Mechanic and Mechanical Engineering
Abstract:The cavitation flow characteristics in jet pipe amplifier with different nozzles were simulated using commercial computational fluid dynamics...
617