This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Development of 40 to 50 kg/mm2 Tensile Strength, Highly Formable Cold-Rolled Low Carbon Steel by α + γ Phase Annealing
Annotation ability available
Sector:
Language:
English
Abstract
The effects of key alloy and process parameters on the mechanical properties of high strength, highly formable low carbon sheet steels have been determined by a combination of laboratory processing, Taguchi Design of Experiments method, and multiple linear regression analysis. Factors studied include C, Mn, P, hot mill coiling temperature, in-line annealing temperature, and annealing line speed. Tensile strength levels were varied from 40 to 50 kg/mm2 with elongation of 30 to 40%. Annealing conditions were varied from partial to full recrystallization in both the single and α + γ two phase region. Effects of the chemistry and process parameters on the mechanical properties will be discussed, with particular emphasis on conditions required to produce a hot dipped galvannealed product meeting 45 kg/mm2 tensile strength and 35% elongation minimum requirements.
Authors
Citation
Yao, Z. and Zuidema, B., "Development of 40 to 50 kg/mm2 Tensile Strength, Highly Formable Cold-Rolled Low Carbon Steel by α + γ Phase Annealing," SAE Technical Paper 950377, 1995, https://doi.org/10.4271/950377.Also In
References
- Takechi H. “Metallurgical Aspects on Interstitial Free Sheet Steel from Industrial Viewpoint” ISIJ International 34 1994 1 1 8
- Chang S.K. Park Y.B. “Effect of Phosphorus on Recrystallization Texture in Ti-Stabilized High Strength Sheet Steels” 1994 High-Strength Steels for Automotive Symposium Proceedings 195 200
- Pradhan R. “Cold-Rolled Interstitial-Free Steels: A Discussion of Some Metallurgical Topics” International Forum For Physical Metallurgy of IF Steel 1994 Tokyo 165 178
- Meyer L. Bleck W. Muschenborn W. “Product-Oriented IF Steel Design” International Forum For Physical Metallurgy of IF Steel 1994 Tokyo 203 222
- Ushioda K. Yoshinaga N. Koyama K. Akisue O. “Application of Ultralow Carbon Steels to the Development of Supperformable Sheet Steels, Solution-hardened High Strength Sheet Steels and Bake-Hardenable Sheet Steels” International Forum For Physical Metallurgy of IF Steel 1994 Tokyo 227 244
- Hwang Y.S. Chen H.C. “Effect of Nb Content on Deep Drawability of Nb and Ti-added Extra-Low-Carbon Cold-Rolled Sheet Steel” International Symposium on Low-Carbon Steels for the 90's Asfahani R. Tither G. 475 480
- Fekete J.R. Strugala D.C. Yao Z. “Advanced Sheet Steels for Automotive Applications” JOM 44 1 January 1992 17 21
- Zhang L.W. Bensinger T. “Hot Dip Galvannealing of IF Steel Strengthened by Manganese” Galvatech '95 Chicago September 1995
- Yao Z. “Development of 40 to 50 kg/mm 2 High Tensile Strength IF Steel” Galvatech '95 Chicago September 1995
- Mizzui N. Nishio K. Katsu S. Nakai S. “Development of a New 450 N/mm 2 Grade Ultra-low Carbon Sheet Steel for Automotive Panels” 1992 SAE Paper 920248
- Fu Z. Zhang K. Zhao S. “Characteristics of Deep Drawing High Strength Cold-Rolled Phosphorus Bearing Automotive Steel Sheets” Iron and Steel 1991 26 7 48 51
- Prum N. Meers U. Mathy H. Messien P. Leroy V. “Influence of the Hot-Rolled Thermal History on the Drawability of Continuously Annealed Sheet Steel” Hot-Cold-Rolled Sheet Steels TMS 1988 3 23
- Hutchinson W.B. Ushioda K. “Texture Development in Continuous Annealing” Scand J. Metall. 13 1984 269 275
- Moussy F. Munier M. Brun C. “Research Of The Optimum Between Texture Improvement And Carbide Coarsening For Cold-Rolled Continuously-Annealed Sheet Steels” Hot-Cold-Rolled Sheet Steels TMS 1988 25 39
- Pradhan R. Battisti J.J “Continuously Annealed Drawing-Quality Steel: Effect Of Chemistry And Processing Conditions” Hot-Cold-Rolled Sheet Steels TMS 1988 41 56
- Lake J.S.H. Mu Sung G. Renshaw W.A. Willis D.J. “Recrystallization And Grain Growth Kinetics During Galvanizing Heat Treatments For Continuously Cast Steel” Hot-Cold-Rolled Sheet Steels TMS 1988 233 254
- Matsudo K. Osawa K. Kurihara K. “Metallurgical Aspects Of The Development Of Continuous Annealing Technology At Nippon Kokan” Technology of Continuously Annealed Cold-Rolled Sheet Steel TMS 1985 3 36
- Katoh H. Takechi H. Takahashi N. Abe M. “Cold-Rolled Steel Sheets Produced by Continuous Annealing” Technology of Continuously Annealed Cold-Rolled Sheet Steel TMS 1985 37 58
- Hosoya Y. Kobayashi H. Shimomura T. Matsudo K. Kurihara K. “Effect of Morphology Change of Fine Carbide Precipitates On The Ductility Of Continuously Annealed Mild Steel Sheets” Technology of Continuously Annealed Cold-Rolled Sheet Steel TMS 1985 61 77
- Kurihara K. Nakaoka K. “Effect Of Chemical Composition And Overaging Condition On The Carbide Precipitation In Continuous Annealing” Technology of Continuously Annealed Cold-Rolled Sheet Steel TMS 1985 95 110
- Seter B. Bergstrom U. “Extra Deep-Drawing Quality Steels By Continuous Annealing” Technology of Continuously Annealed Cold-Rolled Sheet Sleel TMS 1985 111 121
- Okamoto A. Mizui N. “Effect Of Cooling Condition OF Hot Roll On The Recrystallization Texture Development During Rapid Annealing” Technology of Conrinuougly Annealed Cold-Rolled Sheet Steel TMS 1985 139 150
- Pradhan R. “Effect Of Nitride Formers (B, Zr, Ti) On The Mechanical Properties Of Continuously Annealed Low-Carbon Steel Sheet” Technology of Continuously Annealed Cold-Rolled Sheet Steel TMS 1985 185 202
- Seto K. Okuda K. Sakata K. “High Formable Ultra Low Carbon High Strength Sheet Steels for Automotive Body Panels” 1994 High-Strength Steels for Automotive Symposium Proceedings 201 208
- Yoshinaga N. Ushioda K. Akisue O. “Development of Deep-Drawable and Bake-Hardenable High-Strength Ultra Low-C Steel Sheets by (α + γ) or γ Phase Annealing” 1994 High-Strength Steels for Automotive Symposium Proceedings 149 158
- Okada S. Satoch S. Kato T. Takasaki J. “New Ultra Low Carbon Complex Phase Cold-Rolled Sheet Steel Bearing Nb-B” 1994 High-Strength Steels for Automotive Symposium Proceedings 233 238
- Chen H.C. “Development of a 1000 MPa High-Strength High-Ductility Cold-Rolled Steel Sheet” SEAISI Quarterly April 1991 44 49
- Itami A. Tahashi M. Ushioda K. “Cold-Rolled High-Strength TRIP Sheet Steels and Plastic Stability of Their Retained Austenite” 1994 High-Strength Steels for Automotive Symposium Proceedings 245 254
- Sugimoto K. Kobayashi M. “Warm Stretch-Formability of TRIP-Aided Dual-Phase Sheet Steels” 1994 High-Strength Steels for Automotive Symposium Proceedings 255 265
- Hosoya Y. Suzuki T. Nishimoto A. “Effect of the Purification of Interstitial Elements on the Metallurgical Aspects of Continuously Annealed Ultra-Low Carbon Steel Sheets” Metallurgy of Vacuum-Degassed Steel Products Pradhan R. 1990 291 308
- Yao Z. “Precipitation Behavior of Ti, Nb, V Microalloys in HSLA 80 KSI Hot-Rolled Product” 36th Mechanical Working & Steel Processing TMS October 16-19 1994 37 44
- Tanaka, Tesu-to-Hagane 64 11 Sep 1978 304
- Dearbon T. O'Neill Trans Inst. of Welding 3 1940 203
- Mitchell J. W. Chang U.I. “Resistance Spot Welding of Microalloyed Steels for Automotive Applications” Microalloying Conference Washington DC 1-3 October 1975