Evolution of Dynamic Recrystallization in 35CrMo Steel During Hot Deformation

被引：6

作者：

Xiao, Zhengbing ^{[1
]}

Huang, Yuanchun ^{[2
]}

Liu, Yu ^{[1
]}

机构：

[1] Cent S Univ, Light Alloy Res Inst, Changsha 410012, Hunan, Peoples R China

[2] Cent S Univ, Sch Mech & Elect Engn, Changsha 410083, Hunan, Peoples R China

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2018年 / 27卷 / 03期

关键词：

35CrMo steel; constitutive equation; dynamic recrystallization; microstructure; NICKEL-BASED SUPERALLOY; STAINLESS-STEEL; FLOW-STRESS; BEHAVIOR; STRAIN; ALLOY; KINETICS; WORKING; COMPRESSION; INITIATION;

D O I：

10.1007/s11665-018-3220-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

To better understand the dynamic recrystallization (DRX) behavior of 35CrMo steel during hot deformation, a series of isothermal compression tests were carried out at different temperatures and strain rates. Using a constitutive equation built from the data obtained and the Arrhenius equation, the activation energy for hot deformation was determined through regression to be 342.69 kJ/mol. A model of the DRX kinetics was also constructed to characterize the influence of accumulated strain, temperature and strain rate on DRX evolution, which revealed that lower temperatures and higher strain rates require greater strain to achieve the same DRX volume fraction. Optical examination of the microstructure after deformation confirmed that this model accurately reflects reality and that grain size varies directly with deformation temperature, but inversely with strain rate.

引用

页码：924 / 932

页数：9

共 36 条

[1] Prediction of hot deformation behaviour of 10Cr-10Ni-5Mo-2Cu steel [J].

Abbasi, S. M. ;

Shokuhfar, A. .

MATERIALS LETTERS, 2007, 61 (11-12) :2523-2526

[2]

ASTM International, 2004, E112962004 ASTM INT

[3]

Bhadeshia H. K. D. H., 2006, 14 MODELLING MICROST, P307

[4]

Ebrahimi R., 2012, MATH MODELING SINGLE, P207, DOI [10.5772/34445, DOI 10.5772/34445]

[5] Critical strain and models of dynamic recrystallization for FGH96 superalloy during two-pass hot deformation [J].

Fang, Bin ;

Ji, Zhen ;

Liu, Meng ;

Tian, Gaofeng ;

Jia, Chengchang ;

Zeng, Tiantian ;

Hu, Benfu ;

Chang, Yuhong .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2014, 593 :8-15

[6] Dynamic recrystallization behavior covering a wide austenite grain size range in Nb and Nb-Ti microalloyed steels [J].

Fernández, AI ;

Uranga, P ;

López, B ;

Rodriguez-Ibabe, JM .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2003, 361 (1-2) :367-376

[7] Dynamic recrystallization behavior of an as-cast TiAl alloy during hot compression [J].

Li, Jianbo ;

Liu, Yong ;

Wang, Yan ;

Liu, Bin ;

He, Yuehui .

MATERIALS CHARACTERIZATION, 2014, 97 :169-177

[8] Constitutive modeling for elevated temperature flow behavior of 42CrMo steel [J].

Lin, Y. C. ;

Chen, Ming-Song ;

Zhong, Jue .

COMPUTATIONAL MATERIALS SCIENCE, 2008, 42 (03) :470-477

[9] EBSD analysis of evolution of dynamic recrystallization grains and δ phase in a nickel-based superalloy during hot compressive deformation [J].

Lin, Y. C. ;

He, Dao-Guang ;

Chen, Ming-Song ;

Chen, Xiao-Min ;

Zhao, Chun-Yang ;

Ma, Xiang ;

Long, Zhi-Li .

MATERIALS & DESIGN, 2016, 97 :13-24

[10] The modelling of dynamic recrystallization in the isothermal compression of 300M steel [J].

Liu, Y. G. ;

Li, M. Q. ;

Luo, J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2013, 574 :1-8

← 1 2 3 4 →