Fe-26Mn-4Co-2Al 제진합금의 인장강도에 미치는 냉간가공의 영향

• Published in: 한국동력기계공학회지 Vol. 20; no. 6; pp. 46 - 50
• Main Authors: 강창룡, 김성휘, 정규성, Kang, Chang-Yong, Kim, Seong-Hwi, Jeong, Gyu-Seong
• Format: Journal Article
• Language: Korean
• Published: 2016
• Subjects: Volume fraction; {\alpha}^{\prime}$-martensite; {\varepsilon}$-Martensite; Cold working; Tensile strength
• ISSN: 1226-7813; 2384-1354

This study was carried out to investigate the effect of cold working on the tensile strength of Fe-26Mn-4Co-2Al damping alloy. ${\alpha}^{\prime}$ and ${\varepsilon}$-martensite were formed by cold working, and martensite was formed with the specific direction and surface relief. With the increasing degree of cold rolling, volume fraction of ${\alpha}^{\prime}$-martensite was increased, whereas the volume fraction of ${\varepsilon}$-martensite was decreased after rising to maximum value at specific lever of cold rolling. Tensile strength was linearly increased with an increasing of degree of cold rolling. Tensile strength was strongly affected to the volume fraction of ${\varepsilon}$-martensite formed by cold working, but the effect of volume fraction of ${\varepsilon}$-martensite on the tensile strength was not observed.