Yield strength prediction in Ni-base alloy 718Plus based on thermo-kinetic precipitation simulation

被引：90

作者：

Ahmadi, M. R. ^{[1
,2
]}

Povoden-Karadeniz, E. ^{[2
]}

Whitmore, L. ^{[3
]}

Stockinger, M. ^{[4
]}

Falahati, A. ^{[1
]}

Kozeschnik, E. ^{[1
,2
]}

机构：

[1] Vienna Univ Technol, Inst Mat Sci & Technol, A-1040 Vienna, Austria

[2] Vienna Univ Technol, Inst Mat Sci & Technol, Christian Doppler Lab Early Stages Precipitat, A-1040 Vienna, Austria

[3] Univ Leoben, Dept Phys Met & Mat Testing, Christian Doppler Lab Early Stages Precipitat, A-8700 Leoben, Austria

[4] Bohler Schmiedetech GmbH & Co KG, A-8605 Kapfenberg, Austria

来源：

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING | 2014年 / 608卷

关键词：

Precipitation strengthening; Solid solution strengthening; Shearing mechanism; Precipitate radius; Precipitate resistance force; MULTICOMPONENT MULTIPHASE SYSTEMS; IRREVERSIBLE-PROCESSES; RECIPROCAL RELATIONS; SUPERALLOY; COHERENT; STRESS; NICKEL; METAL; MODEL;

D O I：

10.1016/j.msea.2014.04.054

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The yield strength of Allvac (R) 718Plus (TM) during aging is computed using integrated physical models that take into account intrinsic, grain boundary, solid solution and precipitate strengthening contributions. Precipitation strengthening of gamma' has the main effect on the final yield strength in this alloy during aging, with the coherency and anti-phase boundary effects providing the major strengthening contributions. We utilize transmission electron microscopy to obtain the unknown physical parameters entering the strengthening models and compare precipitate size and distribution with the simulation results. (C) 2014 Elsevier B.V. All rights reserved.

引用

页码：114 / 122

页数：9

共 41 条

[1]

Anthony A.W, 1975, ACTA METALL, V23, P1337

[2] PRECIPITATION HARDENING [J].

ARDELL, AJ .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (12) :2131-2165

[3]

Brown L.M., 1971, Applied Science, V9

[4] SOLID-SOLUTION HARDENING [J].

BUTT, MZ ;

FELTHAM, P .

JOURNAL OF MATERIALS SCIENCE, 1993, 28 (10) :2557-2576

[5]

Cao W.-D., 2004, [No title captured], Patent No. [6,730,264B2, 6730264]

[6] Self-consistent modelling of the plastic deformation of FCC polycrystals and its implications for diffraction measurements of internal stresses [J].

Clausen, B ;

Lorentzen, T ;

Leffers, T .

ACTA MATERIALIA, 1998, 46 (09) :3087-3098

[7]

Dieter G.E., 1986, MECH METALLURGY

[8]

Douin J., 1986, PHILOS MAG A, V41, P21

[9] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396

[10] SOLID SOLUTION HARDENING OF METAL CRYSTALS [J].

FELTHAM, P .

JOURNAL OF PHYSICS D-APPLIED PHYSICS, 1968, 1 (03) :303-&

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