KINETICS OF GRAIN GROWTH IN 718 Ni-BASE SUPERALLOY

被引：18

作者：

Huda, Z. ^{[1
]}

Zaharinie, T. ^{[2
]}

Metselaar, I. H. S. C. ^{[2
]}

Ibrahim, S. ^{[2
]}

Min, Goh J. ^{[2
]}

机构：

[1] Nilai Univ, Dept Engn, Nilai 71800, Negeri Sembilan, Malaysia

[2] Univ Malaya, Dept Mech Engn, Kuala Lumpur 50603, Malaysia

来源：

ARCHIVES OF METALLURGY AND MATERIALS | 2014年 / 59卷 / 03期

关键词：

Nickel-base superalloy; microstructures; grain growth; kinetics; activation energy; DEFORMATION; ALLOY; BORON;

D O I：

10.2478/amm-2014-0143

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

The Haynes (R) 718 Ni-base superalloy has been investigated by use of modern material characterization, metallographic and heat treatment equipment. Grain growth annealing experiments at temperatures in the range of 1050-1200 degrees C (1323-1473K) for time durations in the range of 20 min-22h have been conducted. The kinetic equations and an Arrhenius-type equation have been applied to compute the grain-growth exponent n and the activation energy for grain growth, Q(g), for the investigated alloy. The grain growth exponent, n, was computed to be in the range of 0.066-0.206; and the n values have been critically discussed in relation to the literature. The activation energy for grain growth, Q(g), for the investigated alloy has been computed to be around 440 kJ/mol; and the Q(g) data for the investigated alloy has been compared with other metals and alloys and ceramics; and critically analyzed in relation to our results.

引用

页码：847 / 852

页数：6

共 31 条

[1] Influence of local chemical segregation on the γ′ directional coarsening behavior in single crystal superalloy CMSX-4 [J].

Cheng, K. Y. ;

Job, C. Y. ;

Kim, D. H. ;

Jin, T. ;

Hu, Z. Q. .

MATERIALS CHARACTERIZATION, 2009, 60 (03) :210-218

[2] The influence of trace boron addition on grain growth kinetics of the beta phase in the beta titanium alloy Ti-15Mo-2.6Nb-3Al 0.2Si [J].

Cherukuri, B. ;

Srinivasan, R. ;

Tamirisakandala, S. ;

Miracle, D. B. .

SCRIPTA MATERIALIA, 2009, 60 (07) :496-499

[3]

Cotterill P., 1976, Recrystallization and grain growth in metals

[4] Hydrogen trapping in β-21S titanium alloy [J].

Eliezer, D ;

Tal-Gutelmacher, E ;

Cross, CE ;

Boellinghaus, T .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2006, 421 (1-2) :200-207

[5] KINETICS OF GRAIN-GROWTH IN POWDER-FORMED IN-792 - A NICKEL-BASE SUPERALLOY [J].

HUDA, Z ;

RALPH, B .

MATERIALS CHARACTERIZATION, 1990, 25 (02) :211-220

[6] DEVELOPMENT OF DESIGN PRINCIPLES FOR A CREEP-LIMITED ALLOY FOR TURBINE-BLADES [J].

HUDA, Z .

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE, 1995, 4 (01) :48-53

[7] Influence of particle mechanisms on kinetics of grain growth in a P/M superalloy [J].

Huda, Z .

RECRYSTALLIZATION AND GRAIN GROWTH, PTS 1 AND 2, 2004, 467-470 :985-990

[8]

Huda Z., 2011, INT J PHYS SCI, V30, P7073, DOI 10.5897/UPS11.245

[9]

HUDA Z, 1991, THESIS BRUNEL U W LO

[10] Development of heat-treatment process for a P/M superalloy for turbine blades [J].

Huda, Zainul .

MATERIALS & DESIGN, 2007, 28 (05) :1664-1667

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