Sticking mechanism during hot rolling of two stainless steels
- PDF / 965,376 Bytes
- 7 Pages / 612 x 792 pts (letter) Page_size
- 9 Downloads / 203 Views
(b)
(c)
(d)
Fig. 4—Electron micrographs of the alloy aged at 823 K for 20 min: (a) BF (b ) An SADP taken from an area covering (a 1 B2) particle and k-carbide lamella. The foil normals of the a and k-carbide are [001]a and [011]k, respectively (hkl 5 a, hkl 5 B2, and (hkl) 5 k carbide). (c) and ( d ) 100 kcarbide and 100 B2 DF images, respectively. 15. T. Tadaki and K. Shimizu: Trans. JIM, 1975, vol. 16, pp. 105-10. 16. Z. Nishiyama, K. Shimizu, and M. Harada: Trans. JIM, 1970, vol. 11, pp. 152-58. 17. A. Inoue, T. Minemura, A. Kitamura, and T. Masumoto: Metall. Trans. A, 1981, vol. 12A, pp. 1041-46. 18. C.H. Kao and C.M. Wan: J. Mater. Sci., 1988, vol. 23, pp. 894-99. 19. A. Inoue, T. Minemura, A. Kitamura, and T. Masumoto: Metall. Trans. A, 1981, vol. 12A, pp. 1041-46. 20. K.H. Han, W.K. Choo, and D.E. Laughlin: Scripta Metall., 1988, vol. 22, pp. 1873-78. 21. K.H. Han and W.K. Choo: Metall. Trans. A, 1989, vol. 20A, pp. 20514. 22. K. Sato, K. Tagawa, and Y. Inoue: Metall. Trans. A, 1990, vol. 21A, pp. 5-11. 23. K.H. Han: Mater. Sci. Eng., 1995, vol. A197, pp. 223-29. 24. Y. Ikarashi, K. Sato, T. Yamazaki, Y. Inoue, and M. Yamanaka: J. Mater. Sci. Lett., 1992, vol. 11, pp. 733-35. 25. H. Huang, D. Gan, and P.W. Kao: Scripta Metall., 1993, vol. 30 (4), pp. 499-504. 26. Y.G. Kim, J.M. Han, and J.S. Lee: Mater. Sci. Eng., 1989, vol. A114, pp. 51-59.
696—VOLUME 29A, FEBRUARY 1998
Sticking Mechanism during Hot Rolling of Two Stainless Steels SUNGHAK LEE, DONGWOO SUH, SEUNGCHAN OH, and WON JIN Sticking refers to the phenomenon occurring in the hotrolling process in which fragments of a rolled material are detached and get stuck to a work roll surface, deteriorating the surfaces of both the roll and the rolled material.[1] It
SUNGHAK LEE, Professor, Center for Advanced Aerospace Materials, and WON JIN, Senior Research Engineer, Stainless Steel Research Team, Technical Research Laboratories, are with the Pohang University of Science and Technology, Pohang, 790-784 Korea. DONGWOO SUH, formerly Research Assistant, Center for Advanced Aerospace Materials, Pohang University of Science and Technology, is Postdoctoral Research Associate, Department of Materials Science and Engineering, Massachusetts Institute of Technology, Cambridge, MA 02139-4307. SEUNGCHAN OH, formerly Research Assistant, Center for Advanced Aerospace Materials, Pohang University of Science and Technology, is Research Scientist, Materials Research Department, Kia Technical Center, Seoul, 152-030 Korea. Manuscript submitted June 3, 1997. METALLURGICAL AND MATERIALS TRANSACTIONS A
arises mainly during plastic deformation at high temperature, such as in hot rolling, and is heavily influenced by such rolling conditions as temperature, lubrication, and applied load.[2] Especially, in hot rolling of stainless steels, sticking problems usually occur at the rear part of the roughening rolls or at the front part of the finishing rolls and leave serious flaws such as dents or scratches on the surfaces. It has been reported that sticking is serious in stainles
Data Loading...
