Browse > Article
http://dx.doi.org/10.14775/ksmpe.2016.15.3.072

Analysis of the Accidental Hydrogen Embrittlement Affecting the Track Nut of Self-Propelled Howitzer  

Gil, Hyeon-Jun (Defense Agency for Technology and Quality)
Kim, Byeong-Ho (Defense Agency for Technology and Quality)
Kang, Hyeon-Jae (Defense Agency for Technology and Quality)
Seo, Jae Hyun (Defense Agency for Technology and Quality)
Publication Information
Journal of the Korean Society of Manufacturing Process Engineers / v.15, no.3, 2016 , pp. 72-78 More about this Journal
Abstract
In this study, we analyzed the accidental hydrogen embrittlement affecting the track nut on a self-propelled howitzer. Tracks are key components to maintain a high degree of confidence in the operation of the self-propelled howitzer and the safety of the crew. This study analyzed the fractured surface using SEM to review accidental damage of the wedge nut. In addition, we conducted revival tests and analyzed the results to identify the cause of the wedge nut damage from hydrogen embrittlement. We should carry out factor analysis and continuous improvement of the manufacturing process to determine the accidental breakage mechanism for future enhancement of the self-propelled howitzer. This study will be the useful reference for enhancing process designs in similar products.
Keywords
Self-Propelled Howitzer; Track Nut; Hydrogen Embrittlement;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 LS Mtron, Report of Track Nut Failure Analysis for The Track Nut of Self-Propelled Howitzer, pp.1-15, 2015.
2 Kim, Y. S., Jeong Y. M., and Im, G. S., "Review on Delayed Hydride Cracking and Stress Corrosion Cracking of Metals", Transactions of the Korean Hydrogen and Energy Society, Vol. 15, No. 4 pp. 266-273, 2004.
3 Kim, B. H., Seo, J. H., Gil, H. J., Kim, S. H., and Seo, S. C., "A Study on the Nondestructive Test Optimum Design for a Ground Tracked Combat Vehicle", Journal of the Korean Society for Nondestructive Testing, Vol. 35, No. 5 pp. 358-366, 2015.   DOI
4 Cho, J. U. and Han, M. S., "Study on Fracture at Material under Dynamic Load", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 7, No. 2 pp. 16-22, 2008.
5 Park, K. D. and Ryu, H. J., "A Study on Corrosion Fatigue Characteristics Based on Welding Methods of Structural Steel", Journal of the Korean Society of Manufacturing Process Engineers, Vol. 5, No. 3 pp. 58-64, 2006.