ARB법에 의해 강소성가공된 무산소동의 어닐링 특성

이성희; 조준; 이충효; 한승전; 임차용; Seong-Hee Lee; Jun Cho; Chung-Hyo Lee; Seung-Zun Han; Cha-Yong Lim

Korean Journal of Materials Research, Vol.15, No.9, 555-559, September, 2005

DOI10.3740/MRSK.2005.15.9.555 Export Citation

ARB법에 의해 강소성가공된 무산소동의 어닐링 특성

Annealing Characteristics of Oxygen Free Copper Severely Deformed by Accumulative Roll-Bonding Process

이성희^†, 조준, 이충효, 한승전¹, 임차용¹

목포대학교 신소재공학과
¹한국기계연구원 재료연구부

Seong-Hee Lee^†, Jun Cho, Chung-Hyo Lee, Seung-Zun Han¹, and Cha-Yong Lim¹

Department of Advanced Materials Science and Engineering, Mokpo National University, Muan-gun, Chnooam, 534-729, Korea
¹Department of Materials Technology, Korea Institute of Machinery and Materials, 66 Sangnam-dong, Changwon, 641-010, Korea

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An oxygen free copper severely-deformed by eight cycles (an equivalent strain of \~6.4 ) of accumulative roll-bonding (ARB) was annealed at various temperatures ranging from 100 to 300 ? C . The annealed copper was characterized by transmission electron microscopy (TEM) and tensile & hardness test. TEM observation revealed that the ultrafine grains developed by the ARB still remained up to 150 ? C , however above 200 ? C they were replaced by equiaxed and coarse grains due to an occurrence of the static recrystallization. Tensile strength and hardness of the copper decreased slightly with the annealing temperature up to 150 ? C , however they dropped largely above 200 ? C . Annealing characteristics of the copper were compared with those of a commercially pure aluminum processed by ARB and subsequently annealed.

Keywords:Accumulative roll-bonding;annealing;oxygen free copper;transmission electron microscopy;mechanical property

[References]

Valiev RZ, Krasilnikov NA, Tsenev NK, Mater. Sci. Eng. A, 137, 35 (1991)
Abdulov RZ, Valiev RZ, Krasilnilov NA, Mater. Sci. Lett., 9, 1445 (1990)
Saito Y, Tsuji N, Utsunomiya H, Sakai T, Hong RG, Scripta Mater., 39, 1221 (1998)
Tsuji N, Saito Y, Utsunomiya H, Tanigawa S, Scripta Mater., 40, 795 (1999)
Tsuji N, Ito Y, Saito Y, Minamino Y, Scripta Mater., 47, 893 (2002)
Lee SH, Saito Y, Sakai T, Utsunomiya H, Mater. Sci. Eng. A, 325, 228 (2002)
Lee SH, Saito Y, Park KT, Shin DH, Mater. Trans., 43, 2320 (2002)
Lee SH, Inagaki H, Utsunomiya H, Saito Y, Sakai T, Mater. Trans., 44, 1376 (2003)
Saito Y, Utsunomiya H, Suzuki H, Proc. Inst. Mech. Eng. Ser. B, 215, 947 (2001)
Huang JY, Zhu YT, Jiang H, Lowe TC, Acta Mater., 49, 1497 (2001)
Lee SH, Cho J, Han SZ, Lim CY, Korean J. Mater. Res., 15(4), 240 (2005)
Tsuji N, Ito Y, Nakashima H, Yoshida F, Minamino Y, Mater. Sci. Forum, 423, 396 (2002)
Humphreys FJ, Hatherly M, Recrystallization and Related Annealing Phenomena, 1st ed., p.129, Elsevier Science Ltd., England, (1995) (1995)

[Referenced By]

[1] Valiev RZ, Krasilnikov NA, Tsenev NK, Mater. Sci. Eng. A, 137, 35 (1991)

[2] Abdulov RZ, Valiev RZ, Krasilnilov NA, Mater. Sci. Lett., 9, 1445 (1990)

[3] Saito Y, Tsuji N, Utsunomiya H, Sakai T, Hong RG, Scripta Mater., 39, 1221 (1998)

[4] Tsuji N, Saito Y, Utsunomiya H, Tanigawa S, Scripta Mater., 40, 795 (1999)

[5] Tsuji N, Ito Y, Saito Y, Minamino Y, Scripta Mater., 47, 893 (2002)

[6] Lee SH, Saito Y, Sakai T, Utsunomiya H, Mater. Sci. Eng. A, 325, 228 (2002)

[7] Lee SH, Saito Y, Park KT, Shin DH, Mater. Trans., 43, 2320 (2002)

[8] Lee SH, Inagaki H, Utsunomiya H, Saito Y, Sakai T, Mater. Trans., 44, 1376 (2003)

[9] Saito Y, Utsunomiya H, Suzuki H, Proc. Inst. Mech. Eng. Ser. B, 215, 947 (2001)

[10] Huang JY, Zhu YT, Jiang H, Lowe TC, Acta Mater., 49, 1497 (2001)

[11] Lee SH, Cho J, Han SZ, Lim CY, Korean J. Mater. Res., 15(4), 240 (2005)

[12] Tsuji N, Ito Y, Nakashima H, Yoshida F, Minamino Y, Mater. Sci. Forum, 423, 396 (2002)

[13] Humphreys FJ, Hatherly M, Recrystallization and Related Annealing Phenomena, 1st ed., p.129, Elsevier Science Ltd., England, (1995) (1995)