한국정밀공학회지 (Journal of the Korean Society for Precision Engineering)

  • 제18권11호
  • /
  • Pages.174-178
  • /
  • 2001
  • /
  • 1225-9071(pISSN)
  • /
  • 2287-8769(eISSN)
한국정밀공학회 (Korean Society for Precision Engineering)
권호 표지

보론 첨가강(AISI 51B20재)의 피로특성에 관한 연구

A study on the Fatigue Propeties of Boron Steel(AISI 51B20)

  • 이종형 (금오공과대학교 기계공학부) ;
  • 이경모 (거창기능대학 기계설계공학과) ;
  • 윤성훈 (금오공과대학교 생산기계공학과)
  • 발행 : 2001.11.01
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초록

Chrome-molybden steel or chrome steel for machine structures has been shown to excellent hardenability adding boron of a small amount at low carbon steel. These days, boron steel has been used high strength bolt and wear resistant components of construction equipment. SEM results showed classical fatigue fractures, consist with surface crack initiation. The specimens were tested repeatedly(9 times) under controlled load rotary bending fatigue tests. In the study, the fatigue crack initiation as well as fatigue crack growth behavior and the fracture mechanism were investigated through observations of fracture of boron steel surface(AISI 51B20).

키워드

참고문헌

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