High Temperature Materials Division; Central Iron and Steel Research Institute; Beijing 100081
Cite this article:
ZHANG Beijiang; ZHAO Guangpu; JIAO Lanying; XU Guohua; QIN Heyong; FENG Di. Influence Of Hot Working Process On Microstructures Of Superalloy GH4586. Acta Metall Sin, 2005, 41(4): 351-356 .
Abstract The effects of temperature, strain rate and plastic strain on flow
behavior and microstructures of GH4586 wrought superalloy were
investigated by compressive deformation performed on MTS machine at
deformation temperatures of 950 to 1150℃ and strain rates
of 0.001 to 1 s-1. The results show that the flow stress increases
drastically with the decrease of deformation temperature and the increase
of strain rate. Dynamic recrystallization process can be effectively
promoted by increasing deformation temperature. When deformation
temperature is higher than 1100℃, completely recrystallized
microstructures can be obtained with engineering strain of 30%, while
when the temperature is lower than 1050℃, dynamic recrystallization
does not occur with engineering strain up to 40\%. Grain size of annealed
microstructures increases with the increase of deformation temperature.
Ideal plasticity and resultant microstructures can be achieved by effective
control of deformation temperature.
[1]Zhao G P. Acta Metall Sin, 1995; 31(Suppl.): S193 (赵光普.金属学报,1995;31(增刊):S193) [2]Xie S S, Wang T L, Lu J Y. Mater Sci Technol, 1999; 15(5): 411 [3]Xian M Z. Acta Metall Sin, 1999; 35(Suppl): S85 (羡梦芝.金属学报, 1999;35(增刊):S85) [4]Cui T, Wang L, Lu J Y, Yang H C, Zhao G P. J Iron Steel Res, 2003; 15(7): 21 (崔彤,王磊,吕俊英,杨洪才,赵光普.钢铁研究学报, 2003;15(7):21) [5]Meyers M A, Benson D J, Vohringer O, Kad B K, Xue Q, Fu H H. Mater Sci Eng, 2002; A322: 194 [6]Cheng L M, Poole W J, Embury J D, Lloyd D J. Metall Mater Trans, 2003; 34A: 2473 [7]Mecking H, Kocks U F. Acta Metall, 1981; 29: 1865 [8]Martin J L, Piccolo B L, Kruml T, Bonneville J. Mater Sci Eng, 2002; 322A: 118 [9]Walgraef D. Mater Sci Eng, 2002; 322A: 167 [10]Tian B, Zickler G A, Lind C, Paris O. Acta Mater, 2003; 51: 4149 [11]Verdier M, Brechet Y, Guyot P. Acta Mater, 1999; 47: 127 [12]Sakai T, Ohashi M, Jonas J J. Acta Metall, 1988; 36: 1781 [13]Whillock R J, Buckley R A, Sellars C M. Mater Sci Eng, 2000; 276A: 124 [14]Speer J G, Hasen S S. Metall Trans, 1989; 20A: 25 [15]McQueen H J, Ryan N D. Mater Sci Eng, 2002; A322: 43 [16]Weertman J. J Appl Phys, 1957; 28: 362 [17]Bruni C, Forcellese A, Gabrielli F. Mater Sci Technol, 2002; 125: 242 [18]Siddall R J, Eggar J W. Mater Sci Technol, 1986; 2: 728 [19]Wahabi M E, Cabrera J M, Prado J M. Mater Sci Eng, 2003; A343: 116 [20]Ryan N D, McQueen H J. J Mech Working Technol, 1986; 12: 279 [21]Kim S I, Lee Y, Lee D L, Yoo Y C. Mater Sci Eng, 2003; A355: 384 [22]Livesey D W, Sellars C M. Mater Sci Technol, 1985; 1: 136
