A new prediction model of steady state stress based on the influence of the chemical composition for nickel-base superalloys

被引：43

作者：

Bi, Zhongnan ^{[1
]}

Zhang, Maicang ^{[1
]}

Dong, Jianxin ^{[1
]}

Luo, Kunjie ^{[1
]}

Wang, Jue ^{[1
]}

机构：

[1] Univ Sci & Technol Beijing, Sch Mat Sci & Engn, Beijing 100083, Peoples R China

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2010年 / 527卷 / 16-17期

基金：

中国国家自然科学基金;

关键词：

High temperature deformation; Steady state stress; Chemical composition; Nickel-base superalloys; DEFORMATION CHARACTERISTICS; HOT-WORKING; FLOW; AUSTENITE;

D O I：

10.1016/j.msea.2010.03.075

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

By means of series Gleeble 1500D hot compression tests, the influences of primary alloying elements on steady state stress for 16 type wrought nickel-base superalloys were systematically investigated. Meanwhile, a general equation between the steady state stress and the composition variant was put forward through the activation energy Q and the Zener-Hollomon parameter based on the hyperbolic sine model. The results indicated that different alloying elements influence the activation energy Q to different extent, an exponential function can depicted the relationship between the activation energy and the content variant of common alloying elements in these alloys such as Cr, W, Mo, Ti, Nb and Al satisfactorily. The new model can predict the steady state stress at any temperature and strain rate for any similar nickel-base alloys within the typical hot working range. Furthermore, the mechanism of the chemical composition's influence on deformation behaviors was investigated, and the general characteristics of stress-strain curves for nickel-base alloys were also discussed in this paper. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：4373 / 4382

页数：10

共 25 条

[1]

BEYNON JH, 1992, ISIJ INT, V32

[2] A mechanical interpretation of the activation energy of high temperature deformation in two phase materials [J].

Briottet, L ;

Jonas, JJ ;

Montheillet, F .

ACTA MATERIALIA, 1996, 44 (04) :1665-1672

[3] Hot workability and models for flow stress of NIMONIC 115 Ni-base superalloy [J].

Bruni, C ;

Forcellese, A ;

Gabrielli, F .

JOURNAL OF MATERIALS PROCESSING TECHNOLOGY, 2002, 125 :242-247

[4] THE PLASTIC FLOW OF IRON AND PLAIN CARBON STEELS ABOVE THE A3-POINT [J].

FELTHAM, P .

PROCEEDINGS OF THE PHYSICAL SOCIETY OF LONDON SECTION B, 1953, 66 (406) :865-&

[5]

GUIMARAES AA, 1981, METAL T A, V12, P1654

[6] Modelling austenite flow curves in low alloy and microalloyed steels [J].

Hernandez, CA ;

Medina, SF ;

Ruiz, J .

ACTA MATERIALIA, 1996, 44 (01) :155-163

[7]

Jonas J.J., 1969, Metall Rev, V14, P1, DOI [10.1179/095066069790138056, DOI 10.1179/095066069790138056]

[8]

LI DG, 2005, METAL HEAT TREATMENT, V8, P5

[9] Deformation characteristics of as-received Haynes230 nickel base superalloy [J].

Liu, Yi ;

Hu, Rui ;

Li, Jinshan ;

Kou, Hongchao ;

Li, Hongwei ;

Chang, Hui ;

Fu, Hengzhi .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 497 (1-2) :283-289

[10]

MASHREGHI AR, 2004, MAT SCI TECHNOL, V20, P61

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