Influence of Co content on stacking fault energy in Ni-Co base disk superalloys

被引：125

作者：

Yuan, Yong ^{[1
]}

Gu, Yuefeng ^{[1
]}

Cui, Chuanyong ^{[1
]}

Osada, Toshio ^{[1
]}

Zhong, Zhihong ^{[1
]}

Tetsui, Toshimitsu ^{[1
]}

Yokokawa, Tadaharu ^{[1
]}

Harada, Hiroshi ^{[1
]}

机构：

[1] Natl Inst Mat Sci, High Temp Mat Ctr, Tsukuba, Ibaraki 3050047, Japan

来源：

JOURNAL OF MATERIALS RESEARCH | 2011年 / 26卷 / 22期

关键词：

DEFORMATION; ALLOYS; METALS; STRESS; COPPER; CREEP;

D O I：

10.1557/jmr.2011.346

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The influence of Co content on stacking fault energy (SFE) of the gamma matrix in four Ni-Co base superalloys, including newly developed alloys, has been studied by utilizing high-resolution transmission electron microscopy. The results indicated the SFE was not linear with Co content of the gamma matrix. The lowest SFE could be attained at around 34.0 at.% Co. This effect was attributed to variation of electron holes, saturated Co content in the matrix, and the effect of Co on the partition coefficient of other alloying elements. A high density of twins was related to low SFE and could improve the mechanical properties.

引用

页码：2833 / 2837

页数：5

共 28 条

[1] STACKING FAULT ENERGY IN SILICON [J].

AERTS, E ;

SIEMS, R ;

DELAVIGNETTE, P ;

AMELINCKX, S .

JOURNAL OF APPLIED PHYSICS, 1962, 33 (10) :3078-&

[2] High strength and utilizable ductility of bulk ultrafine-grained Cu-Al alloys [J].

An, X. H. ;

Han, W. Z. ;

Huang, C. X. ;

Zhang, P. ;

Yang, G. ;

Wu, S. D. ;

Zhang, Z. F. .

APPLIED PHYSICS LETTERS, 2008, 92 (20)

[3] MODIFIED SYSTEM FOR PREDICTING SIGMA FORMATION [J].

BARROWS, RG ;

NEWKIRK, JB .

METALLURGICAL TRANSACTIONS, 1972, 3 (11) :2889-&

[4] LOW-TEMPERATURE DEFORMATION OF COPPER SINGLE CRYSTALS [J].

BLEWITT, TH ;

COLTMAN, RR ;

REDMAN, JK .

JOURNAL OF APPLIED PHYSICS, 1957, 28 (06) :651-660

[5] Phase constituents and compressive yield stress of Ni-Co base alloys [J].

Cui, C. Y. ;

Gu, Y. F. ;

Ping, D. H. ;

Fukuda, T. ;

Harada, H. .

MATERIALS TRANSACTIONS, 2008, 49 (03) :424-427

[6]

Cui CY, 2005, METALL MATER TRANS A, V36A, P2921

[7] Effect of stacking fault energy on plastic deformation of nanocrystalline face-centered cubic metals [J].

Ebrahimi, F ;

Ahmed, Z ;

Li, H .

APPLIED PHYSICS LETTERS, 2004, 85 (17) :3749-3751

[8] A transparent indenter measurement method for mechanical property evaluation [J].

Feng, C ;

Kang, BSJ .

EXPERIMENTAL MECHANICS, 2006, 46 (01) :91-103

[9] DEFORMATION TWINNING IN AL-4.8 WT-PERCENT MG [J].

GRAY, GT .

ACTA METALLURGICA, 1988, 36 (07) :1745-1754

[10] Comparison of Mechanical Properties of TMW Alloys, New Generation of Cast-and-Wrought Superalloys for Disk Applications [J].

Gu, Y. F. ;

Fukuda, T. ;

Cui, C. ;

Harada, H. ;

Mitsuhashi, A. ;

Yokokawa, T. ;

Fujioka, J. ;

Koizumi, Y. ;

Kobayashi, T. .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2009, 40A (13) :3047-3050

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