Discussion on the mechanism of creating a transferred layer of SiC shot particles on aluminum alloy by FPP treatment

Yuki Amano, Yutaka Kameyama, Hiroshi Nanbu, Jun Komotori

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

In order to clarify the mechanism of creating a transferred layer of shot particles on the substrate surface by Fine Particle Peening (FPP), the surface of aluminum alloy was modified with SiC shot particles at room temperature, 100°C, 200°C and 300°C. The treated surfaces were characterized using a field emission-scanning electron microscope (FESEM), an energy dispersive X-ray spectrometer (EDX) and an X-ray photoelectron spectroscope (XPS). An SiC-rich layer in which small chips of shot particles were embedded was formed on the substrate surface by FPP treatment. EDX and XPS analyses revealed that the transferred fragments were only embedded into treated material without any chemical binding. The SiC-rich layer became thicker with an increase in heating temperature and was uniformized on the specimen treated at 300°C. The mechanism of the adhesion of a part of the shot particles induced by FPP treatment was analyzed. Analyses using EDX revealed the presence of particle fragments transferred to the collision dents. With an increase in the amount of collision, transferred fragments were embedded into treated material by deformed material due to a micro ploughing effect. In addition, analyses using a high-speed camera revealed that collision of shot particles occurred during FPP treatment.

Original languageEnglish
Pages (from-to)655-661
Number of pages7
JournalZairyo/Journal of the Society of Materials Science, Japan
Volume60
Issue number7
Publication statusPublished - 2011 Jul

Fingerprint

peening
Shot peening
X ray spectrometers
aluminum alloys
shot
Aluminum alloys
Photoelectrons
spectrometers
X rays
High speed cameras
Substrates
Field emission
fragments
x rays
Electron microscopes
Adhesion
collisions
Scanning
Heating
photoelectrons

Keywords

  • Aluminum alloy
  • Fine particle peening
  • SiC particles
  • Surface modification
  • Treatment temperature

ASJC Scopus subject areas

  • Materials Science(all)
  • Mechanical Engineering
  • Mechanics of Materials
  • Condensed Matter Physics

Cite this

Discussion on the mechanism of creating a transferred layer of SiC shot particles on aluminum alloy by FPP treatment. / Amano, Yuki; Kameyama, Yutaka; Nanbu, Hiroshi; Komotori, Jun.

In: Zairyo/Journal of the Society of Materials Science, Japan, Vol. 60, No. 7, 07.2011, p. 655-661.

Research output: Contribution to journalArticle

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