Earticle

초록

영어

This paper investigates tensile characteristics of the stress aging heat-treated SM45C steel which are aging temperature at 250℃, 300℃, aging time at 1, 3 hours, and applied load at 300, 400N conditions by using acoustic emission. Most suitable aging condition was aging temperature 300℃, aging time 1 hour, and aging applied load 300N. And increased yield load 28.3% than non-treatment specimen in this condition. AE energy in elastic limit increased about 16.7 times than non-treatment specimen. When aging time is 3 hours, yield load decreased than other conditions that possibility is high to have itself defect on inside the specimen or coarse grain size precipitation is different in happened over-aging phenomenon. Especially, in case of 300℃, 3 hours and 400N condition appeared AE energy in elastic limit fairly high about 30 times than non-treatment specimen. This is considered by emit a lot of energies when material causes plastic deformation because the ductility increases on specimen by over-aging phenomenon.

목차

Abstract
 1. 서론
 2. 실험재료 및 방법
  2.1 실험재료 및 시험편
  2.2 실험장치 및 방법
 3. 실험결과 및 고찰
  3.1 인장시험의 경우
  3.2 AE시험의 경우
 4. 결론
 5. 참고문헌

키워드

저자

• 이장규 [ Zhang-Kyu Rhee | 인천대학교 기계공학과 ]
• 박복남 [ Bog-Nam Park | 인천대학교 산업대학원 ]

참고문헌

발행기관

간행물

표지보기 관심저널 등록

• 간행물명

  대한안전경영과학회 학술대회논문집

• 간기

  부정기

• 수록기간

  1999~2022

• 십진분류

  KDC 530 DDC 620