Static Strain Aging in ULC-BH Steels - An Overview

43rd Mechanical Working and Steel Processing Conference Proceedings

Volumn , Issue , 2001, Pages 569-581

  De, A K ^a   Vandeputte, S ^b   De Cooman, B C ^a  

^a GHENT UNIVERSITY   (Belgium)

^b Onderzoekscentrum voor de Aanwending van Staal   (Belgium)

Author keywords

dislocations; segregation; Strain aging; ULC BH steel; yield point elongation

Indexed keywords

HARDENING;

BAKE HARDENING; DISLOCATION; DISLOCATIONS DENSITIES; HARDENING PROCESS; SEGREGATION; STATIC STRAIN AGING; STRAIN AGEING; ULC-BH STEEL; ULTRA-LOW CARBON BAKE HARDENING STEELS; YIELD POINT ELONGATIONS;

LOW CARBON STEEL;

EID: 60549107103     PISSN: None     EISSN: None     Source Type: Conference Proceeding    
DOI: None     Document Type: Conference Paper

References (24)

1. W. Wepner, "Dampfungsmessungen an schwach gereckten Eisen-Kohlenstoff-Legierungen", Acta Metall.. Vol. 5, December 1957, pp. 703-710.
2. S. Harper, "Precipitation of carbon and nitrogen in cold-worked alpha-iron", Phys. Review. Vol. 83, No. 4,1951, pp. 709-712.
3. R. H. Doremus, " The precipitation of carbon from alpha-iron. Part II. Kinetics", Trans. AIME. Vol. 218, August 1960, pp. 591-605.
4. D. V. Wilson and B. Russell, "The Contribution of Atmosphere Locking to the Strain-Ageing of Low Carbon Steels", Acta Metall.. Vol. 8, 1960, pp. 36-45.
5. H. Abe' "Carbide precipitation in during aging treatments", Scand. J. Metallurgy. Vol. 13, 1984, pp. 226-239.
6. P. Elsen and H. P. Hougardy, "On the Mechanism of Bake-Hardening", Steel Research. Vol. 64, No. 8/9, 1993, pp. 431-436.
7. A. H. Cottrell and B. A. Bilby, "Dislocation Theory of Yielding and Strain Aging of Iron", Proc. Phvs. Soc. A. Vol. 62, 1949, pp. 49-62.
8. A. K. De, Ph.D. Thesis. Ghent University, Ghent, Belgium, 2001.
9. W. C. Leslie, "The Physical Metallurgy of Steels". Mcgraw-Hill, NY, 1982.
10. G. T. Hahn, "A model for yielding with special reference to the yield point phenomenon of iron and related BCC metals", Acta Metall.. Vol. 10, August 1962, pp. 727-738.
11. J. Z. Zhao, A. K. De and B. C. De Cooman, "Formation of Cottrell atmosphere during strain aging of bake hardenable steels", Metall. Mater. Trans. A, Vol. 32A, February 2001, pp. 417-423.
12. J. Z. Zhao, A. K. De and B. C. De Cooman, "A model for the Cottrell atmosphere formation during strain aging of ultra low carbon bake hardening steels", ISIJ Int.. Vol. 40, No. 7,2000, pp. 374-378.
13. A. V. Snick, S. Vandeputte, B. C. De Cooman and J. Dilewijns, "Effect of carbon content, dislocation density and carbon mobility on bake hardening", Modern LC and ULC sheet steels for cold forming: Processing and Properties. Vol. 2, Aachen, Ed. W. Bleck, 1998, pp. 413-429.
14. S. Hartley, "Strain-ageing in Tantalum", Acta Metall.. Vol. 14, October 1966, pp. 1237-1246.
15. A. K. De, S. Vandeputte and B. C. De Cooman, "Kinetics of strain aging in bake hardening ultra low carbon steel- a comparison with low carbon steel", J. Mater. Engg. Perf.. in press.
16. A. K De, S. Vandeputte and B. C. De Cooman, "Static strain aging behavior of ultra low carbon bake hardening steel", Scripta Materialia. Vol. 41, No. 8,1999, pp. 831-837.
17. A. K De, S. Vandeputte and B. C. De Cooman, "Effect of dislocation density on the low temperature aging behavior of an ultra low carbon bake hardening steel", Journal of Alloys and Compounds. Vol. 310, No. 1/2, 2000, pp. 405-410.
18. S. Hanai, N. Takemoto, Y. Tokunaga and Y. Mizuyama, "Effect of grain size and solid solution strengthening elements on the bake hardenability of low carbon aluminium killed steel", Trans. ISI. Japan, Vol. 24, 1984, pp. 17-23.
19. M. Kinoshita and A. Nishimoto, "Effect of carbon content and grain size on bake hardenability or aging property of extra low carbon cold rolled steel sheet", Camp-ISIJ. Vol. 3, 1990, pp. 1780-1783.
20. N. Hansen, "Polycrystalline strengthening", Metall. Trans. A. Vol. 16A, Dec. 1985, pp. 2167-2190.
21. D. J. Dingley and D. Mclean, "Components of the flow stress of iron", Acta Metall.. Vol. 15, May 1967, pp. 885-901.
22. D. McLean, "Grain boundaries in Metals". Oxford, Clarendon Press, 1957.
23. H. Conrad and G. Schoeck, " Cottrell locking and the flow stress in iron", Acta Metall.. Vol. 8, 1960, pp. 791-796.
24. N. J. Petch. J. Iron Steel Inst. Vol. 174, No. 25,1953.