標題: | Effects of stress relief coupled with reduced EBW energy on flow formed maraging steel weldment |
作者: | Lee, Y. -J. Wu, S. -C. Chang, J. -L. Chou, C. -P. Lee, I. -K. 機械工程學系 Department of Mechanical Engineering |
關鍵字: | Maraging steel;Flow forming;Stress relief;Electron beam welding;Aging treatment;Percentage elongation |
公開日期: | 1-七月-2008 |
摘要: | A flow formed C-250 maraging steel tubing was welded by electron beam welded (EBW) process and subsequently age hardened. Conventional EB welding with high energy input had resulted in seriously inadequate percentage elongation of the weldment. With an additional prewelding stress relief treatment and EBW with a lower energy input, the elongation of the weldment showed significant improvement after being treated with age hardening. It was found that the tensile strength was increased by 12% and the percentage elongation was remarkably increased by 92%. |
URI: | http://dx.doi.org/10.1179/174329308X341906 http://hdl.handle.net/11536/8674 |
ISSN: | 1362-1718 |
DOI: | 10.1179/174329308X341906 |
期刊: | SCIENCE AND TECHNOLOGY OF WELDING AND JOINING |
Volume: | 13 |
Issue: | 5 |
起始頁: | 462 |
結束頁: | 466 |
顯示於類別: | 期刊論文 |