|
|
Strain induced precipitation of second phase in titanium microalloyed IF steel |
HUI Ya-jun1,YU Yang1,WANG Lin1,WANG Chang1,CHEN Bin1,CHEN Jin2 |
(1. Sheet Metal Research Institute, Shougang Research Institute of Technology, Beijing 100043, China 2. Qian’an Iron and Steel Company, Shougang Co., Ltd., Qian’an 064404, Hebei, China) |
|
|
Abstract The second phase precipitation behavior of the Ti-microalloyed interstitial free steel was studied by using stress relaxation method on Gleeble 3500 thermal simulation testing machine. The results showed that the strain induced curves showed three stages,which was caused by precipitation. The precipitation - time - temperature curve of the Ti-IF steel showed a typical "C "shape, the fastest precipitation temperature was about 900 ℃ which was called nose point. And the start and finish time of the second phase precipitation were 10 seconds and 160 seconds, respectively at 900 ℃. With the increase of the isothermal relaxation time, the number of precipitates increased significantly. When the relaxation time exceeded the finish time of precipitation, the amounts of precipitates increased hardly. And the precipitates will grow during the precipitation process. Three kinds of precipitates were observed in Ti-IF steel, which were TiN, Ti4C2S2, and TiC. Because of almost the same shape and size of Ti4C2S2 and TiC precipitates, they can’t be distinguished from each other. And they were easy to precipitate along the austenite grain boundaries or sub-grain boundaries, sub-grain size of Austenite distributed 0.1-0.4μm. Strain-induced precipitation amount at 900 ℃ was more than that of 800 ℃, which is consistent with the results of PPT curve. For Ti-IF steel, in order to obtain coarse and sparse second phase particles, the hot-rolled process of "three low and one high" rapid and large depress should be adopted to improve the drawability.
|
Received: 06 May 2015
Published: 06 January 2016
|
|
|
|
[1] |
马衍伟, 王先进.超深冲钢研究的最新进展[J].钢铁, 1998, 33(4):65-69
|
[1] |
马衍伟, 王先进.超深冲钢研究的最新进展[J].钢铁, 1998, 33(4):65-69
|
[2] |
Himotani S, Endo J, Takayama T et al.Isolation and Determination of Sulfide in Ti bearing Ultra low Carbon Steels[J].ISIJ International, 1994, 34(1):17-23
|
[2] |
Himotani S, Endo J, Takayama T et al.Isolation and Determination of Sulfide in Ti bearing Ultra low Carbon Steels[J].ISIJ International, 1994, 34(1):17-23
|
[3] |
Tsunoyama K, Bara T, Satoh S.Development of Extra-deep Drawing Cold-Rolled Sheet Steels for Integrated Automotive Parts[J].Kawasaki Steel Technical Report, 1991, 5(24):84-92
|
[3] |
Tsunoyama K, Bara T, Satoh S.Development of Extra-deep Drawing Cold-Rolled Sheet Steels for Integrated Automotive Parts[J].Kawasaki Steel Technical Report, 1991, 5(24):84-92
|
[4] |
Fekete R, Strugale Z.Y. Advanced Sheet Steels for Automotive Applications[J].JOM, 1992, 44(1):17-25
|
[4] |
Fekete R, Strugale Z.Y. Advanced Sheet Steels for Automotive Applications[J].JOM, 1992, 44(1):17-25
|
[5] |
Wang X, Cui D, di Tang.Progress of interstitial-free steel for extra-deep drawing[J].Kang T'ieh/Iron and Steel, 1990, 25(6):61-65
|
[5] |
Wang X, Cui D, di Tang.Progress of interstitial-free steel for extra-deep drawing[J].Kang T'ieh/Iron and Steel, 1990, 25(6):61-65
|
[6] |
Shen Y Z, Oh K H, Lee D N.Nitrogen strengthening of interstitial-free steel by nitriding in potassium nitrate salt bath[J].Materials Science and Engineering A, 2006, 434(1-2):314-318
|
[6] |
Shen Y Z, Oh K H, Lee D N.Nitrogen strengthening of interstitial-free steel by nitriding in potassium nitrate salt bath[J].Materials Science and Engineering A, 2006, 434(1-2):314-318
|
[7] |
Gupta A K, Kumar D R.Formability of galvanized interstitial-free steel sheets[J].Journal of Materials Processing Technology, 2006, 172(2):225-237
|
[7] |
Gupta A K, Kumar D R.Formability of galvanized interstitial-free steel sheets[J].Journal of Materials Processing Technology, 2006, 172(2):225-237
|
[8] |
Hayakawa Y, Szpunar J A.Modeling of texture development during recrystallization of interstitial free steel[J].Acta Material, 1997, 45(6):2425-2434
|
[8] |
Hayakawa Y, Szpunar J A.Modeling of texture development during recrystallization of interstitial free steel[J].Acta Material, 1997, 45(6):2425-2434
|
[9] |
Liu Y, Wang C, Jiang Q, et al.Individual grain orientation and heterogeneous deformation in cold-deformed interstitial-free sheet steel [J].Journal of Materials Science and Technology, 2007, 23(5):689-692
|
[9] |
Liu Y, Wang C, Jiang Q, et al.Individual grain orientation and heterogeneous deformation in cold-deformed interstitial-free sheet steel [J].Journal of Materials Science and Technology, 2007, 23(5):689-692
|
[10] |
Hutchinson B, Artymowicz D.Mechanisms and modelling of microstructure/texture evolution in interstitial-free steel sheets[J].ISIJ International, 2001, 41(6):533-541
|
[10] |
Hutchinson B, Artymowicz D.Mechanisms and modelling of microstructure/texture evolution in interstitial-free steel sheets[J].ISIJ International, 2001, 41(6):533-541
|
[11] |
Rana R, Bleck W, Singh S B, et al.Laboratory investigations on copper-alloyed interstitial free steel part I: Effect of annealing[J].Steel Research International, 2007, 78(8):612-621
|
[11] |
Rana R, Bleck W, Singh S B, et al.Laboratory investigations on copper-alloyed interstitial free steel part I: Effect of annealing[J].Steel Research International, 2007, 78(8):612-621
|
[12] |
Wang Z, Zhang P, Guo Y, et al.Recrystallization texture characteristic and drawability of a warm rolled and cold rolled interstitial-free steel[J].Journal of Materials Engineering and Performance, 2006, 15(6):646-650
|
[12] |
Wang Z, Zhang P, Guo Y, et al.Recrystallization texture characteristic and drawability of a warm rolled and cold rolled interstitial-free steel[J].Journal of Materials Engineering and Performance, 2006, 15(6):646-650
|
[13] |
Nagataki Y, Hosoya Y.Origin of the recrystallization texture formation in an interstitial free steel[J].ISIJ International, 1996, 36(4):451-460
|
[13] |
Nagataki Y, Hosoya Y.Origin of the recrystallization texture formation in an interstitial free steel[J].ISIJ International, 1996, 36(4):451-460
|
[14] |
Sanagi S, Kawano T, Takahashi N, et al.Effect of Hot Rolling Condition and Chemical Composition on Mechanical Properties of Extra Low Carbon Continuous Annealed Steel Sheets[J].CAMP-ISIJ, 1990, 3(11):1768-1771
|
[14] |
Sanagi S, Kawano T, Takahashi N, et al.Effect of Hot Rolling Condition and Chemical Composition on Mechanical Properties of Extra Low Carbon Continuous Annealed Steel Sheets[J].CAMP-ISIJ, 1990, 3(11):1768-1771
|
[15] |
Tither G, Garcia C I, Hua M, et al.Precipitation Behavior and Solute Effects in Interstitial-Free Steels [A]. Sakuma T eds. International Forum for Physical Metallurgy of IF Steels [C]. Tokyo: The Iron and Steel Institute of Japan, 1994.293-322.
|
[15] |
Tither G, Garcia C I, Hua M, et al.Precipitation Behavior and Solute Effects in Interstitial-Free Steels [A]. Sakuma T eds. International Forum for Physical Metallurgy of IF Steels [C]. Tokyo: The Iron and Steel Institute of Japan, 1994.293-322.
|
[16] |
Yamada K, Nukura M.Precipitation Behavior of Titanium Carbo-Sulfide in Extra-Low-Carbon Titanium-Added Steels[J].Tetsu-to-Hagane, 1995, 81(3):197-202
|
[16] |
Yamada K, Nukura M.Precipitation Behavior of Titanium Carbo-Sulfide in Extra-Low-Carbon Titanium-Added Steels[J].Tetsu-to-Hagane, 1995, 81(3):197-202
|
[17] |
Yoshinaga N, Ushioda K, Akamatsu S, et al.Precipitation Behavior of Sulfides in Ti-Added Ultra Low-Carbon Steels in Austenite[J].ISIJ International, 1994, 34(1):24-32
|
[17] |
Yoshinaga N, Ushioda K, Akamatsu S, et al.Precipitation Behavior of Sulfides in Ti-Added Ultra Low-Carbon Steels in Austenite[J].ISIJ International, 1994, 34(1):24-32
|
[1] |
YU Hui-xiang, PAN Ming, YANG De-xin. Behavior of inclusions in ultra-low carbon IF steel during deoxidation and alloying process[J]. Iron and Steel, 2020, 55(6): 46-53. |
[2] |
ZHU Tan-hua, ZHOU Qiu-yue, REN Ying, DUAN Hao-jian, ZHANG Li-feng. Inclusion evolution in IF steel during tundish reoxidation[J]. Iron and Steel, 2020, 55(3): 35-39. |
[3] |
YANG Jie1,YAO Hai-ming2,WU Zhen-gang1,GAO Qian-yun2. Clogging control of submerged entry nozzle during IF steelproduction by middle-thin slab process[J]. JOURNAL OF IRON AND STEEL RESEARCH , 2020, 32(1): 20-26. |
[4] |
XIAO Zunhu,SUI Yafei,LIU Peng,XU Gangjun,LI Ciying. Evolution and control of inclusions in aluminumcontaining on #br# oriented electrical steel through CSP process[J]. Iron and Steel, 2019, 54(7): 42-48. |
[5] |
XIAO Pengcheng,ZHAO Maoguo,ZHU Liguang,HE Shengping. Mathematical simulation and experiment on #br# solidification hook of IF steel[J]. Iron and Steel, 2019, 54(7): 49-55. |
[6] |
LIU Lan-xiao,CHEN Ling-feng,GUAN Jian-dong,WU Nai,ZHOU Na,LIU Juan. Analysis of cross striation on the surface of IFsteel[J]. PHYSICS EXAMINATION AND TESTING, 2019, 37(5): 51-55. |
|
|
|
|