Release of micro strain in tool alloy steel by a cavitating jet in air

H. Soyama, N. Yamada, O. Takakuwa, Y. Sekine, M. Mikami

Research output: Chapter in Book/Report/Conference proceedingConference contribution

1 Citation (Scopus)

Abstract

Cavitation impacts can be utilized to improve material properties such as fatigue strength. In case of such application, cavitation was produced by a cavitating jet. In order to investigate mechanism of surface modification, tool alloy steel was treated by a cavitating jet and the surface was analyzed by using X-ray diffraction methods, i.e., 2D method and a fundamental approach. Residual stress was measured by 2D method and micro strain, which is strain in the grain, was evaluated by a fundamental parameter approach. In the present paper, in order to enhance cavitation impacts, a cavitating jet in air was used for surface treatment of tool alloy steel. It was revealed that a cavitating jet in air can introduce compressive residual stress. It was also shown that micro strain introduced by heat treatment or mechanical finishing was released by a cavitating jet in air.

Original languageEnglish
Title of host publication19th International Conference on Water Jetting
Pages219-228
Number of pages10
Publication statusPublished - Dec 1 2008
Externally publishedYes
Event19th International Conference on Water Jetting - Nottingham, United Kingdom
Duration: Oct 15 2008Oct 17 2008

Publication series

Name19th International Conference on Water Jetting

Other

Other19th International Conference on Water Jetting
CountryUnited Kingdom
CityNottingham
Period10/15/0810/17/08

All Science Journal Classification (ASJC) codes

  • Water Science and Technology

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