동력기계공학회지 (Journal of Power System Engineering)

  • 제16권4호
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  • Pages.66-73
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  • 2012
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  • 2713-8429(pISSN)
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  • 2713-8437(eISSN)
한국동력기계공학회 (The Korean Society for Power System Engineering)
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횡방향 TIG 용접된 Al6013-T4알루미늄 합금 용접부의 피로균열전파거동에 미치는 PWHT의 영향

Influences of Post Weld Heat Treatment on Fatigue Crack Growth Behavior of Transverse TIG Welded Al6013-T4 Aluminum Alloy Joint

  • Haryadi, Gunawan Dwi (Department of Mechanical & Automotive Engineering, Pukyong National University) ;
  • Kim, Seon Jin (Department of Mechanical & Automotive Engineering, Pukyong National University)
  • 투고 : 2012.04.16
  • 심사 : 2012.05.03
  • 발행 : 2012.08.31
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초록

본 연구는 횡방향 TIG 용접된 Al6013-T4 알루미늄 합금 용접부의 피로균열전파거동에 미치는 용접후열처리(PWHT)의 영향을 조사하는 것이 주목적이다. 기초적으로 인장시험, 경도 및 미세조직이 조사되었으며, 피로균열전파거동을 고찰하기 위한 피로 시험은 모두 중앙균열인장(CCT) 시험편에 대하여 수행되었다. T82열처리에 있어서 시효시간은 피로균열전파율, 인장강도 및 경도에 대단히 민감함을 나타내었으며, 모재와 열영향부재의 경우가 용접재보다 기계적 성질이 우수하였다. 횡방향 TIG 용접한 Al6013-T4 시험재의 용접후열처리 조건에 따라서 피로균열전파 저항에는 차이가 나타났으며, 본 실험의 조건하에서 24시간 인공시효 PWHT-82 시험편이 피로균열전파 저항이 가장 우수한 결과를 나타내었다.

키워드

참고문헌

  1. Yoon, J. W., Jung, S. P., Park, T. W. and Park, J. K., 2010, "Fatigue Analysis of The Main Frame of Over Head Transportation Vehicles Using Flexible Multybody Dynamics", Journal of Mechanical Science and Technology, 24 (3) pp.721-730. https://doi.org/10.1007/s12206-010-0111-3
  2. Maddox, S. J., 2003, "Review of Fatigue Assessment Procedures for Welded Aluminium Structures", Int. J. Fatigue, pp.1359-1378.
  3. Manti, Rajesh, Dwivedi, D. K., and Argawal, A., 2008, "Pulse TIG Welding of Two Al-Mg-Si Alloys", ASM International , 17(5) pp. 667-673.
  4. Pukasiewicz., A. G. M, Henke, S. L and Casas, W. J. P, 2006, "Effect of Post-weld Heat Treatment on Fatigue Crack Propagation in Welded Joints in CA6NM Martensite Stainless Steel, Welding International, 20(12), pp.947-952. https://doi.org/10.1533/wint.2006.3689
  5. Balasubramanian, V., Ravisankar, V., and Reddy, G. Madhusudhan, 2008, "Effect of Postweld Aging Treatment on Fatigue Behavior of Pulsed Current Welded AA7075 Aluminum Alloy Joints, ASM International, 17 pp. 224-233.
  6. Gunawan, D. H. and Kim, S. J., 2011, "Influence of Post Weld Heat Treatment on Fatigue Crack Growth Behavior of TIG Welding of 6013 T4 Aluminium Alloy Joint (Part 1. Fatigue crack growth across the weld metal), Journal of Mechanical Science and Technology, 25(9) pp. 2161-2170. https://doi.org/10.1007/s12206-011-0530-9
  7. Rajan, T. V., Sharma, C.P. and Ashok, 1997, "Heat Treatment" ,Prentice Hall of India, New Delh pp.338-341.
  8. Jinu, G. R., Sathiya, P., Ravichandran, G. and Rathinam, A., 2010, "Comparison of Thermal Fatigue Behaviour of ASTM A 213 Grade T 92 Base and Weld Meta"l, Journal of Mechanical Science and Technology, 24 (5) pp.1067-1076. https://doi.org/10.1007/s12206-010-0322-7
  9. Welding Handbook, 1997,"Fundamentals of Welding,7th Ed., volume1. American Welding Society, Miami, pp. 183-213.
  10. Kou, S., 2003, " Welding Metallurgy",Willey Inter-Science, Canada, pp.13-15.
  11. Standard test method for measurement of fatigue crack growth rates, 2008, "ASTM E 647-08", American Society for Testing Materials (ASTM), New York, pp. 15-18.
  12. Tsay, L. W., Liu, C. C., Chao, Y. H. and Shieh, Y. H., 2001, "Fatigue Crack Propagation in 2.25 Cr-1.0Mo Steel Weldedments in Air and Hydrogen", Material Science & Engineering, A299, pp. 16-26.
  13. Donnelly, E, Nelson, D., 202, " A study of Small Crack Growth in Aluminium Alloy 7075-T6", International Journal of Fatigue, 24, pp. 1175-89. https://doi.org/10.1016/S0142-1123(02)00025-7
  14. Liu Y. L. and Kang, S. B., 1997, "The Solidification Process of Al-Mg-Si Alloys, J. Mater. Sci., 32, pp. 1443-1447. https://doi.org/10.1023/A:1018545732009
  15. Eripret C. and Hornet, P., 1997, "Prediction of Over Matching Effects on the Fracture of Stainless Steel Cracked Welds",in Mismatching of Welds ",ESIS17,K. H. Schwalbe and M.Kocak, Eds.,Mechanical Engineering Publications, London, pp. 46-57.
  16. Potluri, NB, Ghosh, PK, Gupta, PC, Reddy YS,1996, "Studies on Weld Metal Characteristics and Their Influences on Tensile and Fatigue Properties of Pulsed Current GMA Welded Al-Zn-Mg Alloy", WeldRes, pp. 62-70.

피인용 문헌

  1. Study of Threshold Stress Intensity Factor and Fatigue Limit for Short Crack Growth of HV470 Steel vol.23, pp.5, 2012, https://doi.org/10.9726/kspse.2019.23.5.005