A model for interstitial solid solution strengthening of body centered cubic metals

被引：28

作者：

Rao, S., I ^{[1
,2
]}

Woodward, C. ^{[1
]}

Akdim, B. ^{[1
,2
]}

Senkov, O. N. ^{[1
,2
]}

机构：

[1] Air Force Res Lab, Mat & Mfg Directorate, Wright Patterson AFB, OH 45433 USA

[2] UES Inc, 4401 Dayton Xenia Rd, Dayton, OH 45432 USA

来源：

MATERIALIA | 2020年 / 9卷

关键词：

Modelling; Interstitial solid solution strengthening; Bodycentered cubic metals; Screw dislocations; Kink migration; Kink-kink colisions; HIGH ENTROPY ALLOYS; FLOW STRESS; BCC IRON; NB-TA; OXYGEN; DISLOCATIONS; BEHAVIOR; ENERGY;

D O I：

10.1016/j.mtla.2020.100611

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

A model for interstitial solid solution strengthening of body centered cubic metals is proposed and used to analyze strengthening behavior of interstitial solid solutions of body centered cubic metals for which experimental data at near-room temperature are available in the open literature. The proposed model takes into account interstitial solute-dislocation interactions and cross-kink interactions at the core of a/2 [111] screw dislocations. Good agreement between the calculated and experimental yield stress values is found.

引用

页数：3

共 25 条

[1] A NEW DISCUSSION OF THE INTERACTION ENERGY IN THE SOLID-SOLUTION HARDENING OF BCC IRON-ALLOYS [J].

BUCHNER, AR ;

WUNDERLICH, W .

PHYSICA STATUS SOLIDI A-APPLIED RESEARCH, 1993, 135 (02) :391-403

[2] Multiscale modeling of crowdion and vacancy defects in body-centered-cubic transition metals [J].

Derlet, P. M. ;

Nguyen-Manh, D. ;

Dudarev, S. L. .

PHYSICAL REVIEW B, 2007, 76 (05)

[3] BINDING ENERGY OF OXYGEN TO A DISLOCATION IN TANTALUM [J].

FORMBY, CL ;

OWEN, WS .

PHILOSOPHICAL MAGAZINE, 1966, 13 (121) :41-&

[4]

Fromm E., 1980, International Metals Reviews, V25, P269

[5]

HATTENDORF H, 1992, Z METALLKD, V83, P690

[6]

HATTENDORF H, 1990, Z METALLKD, V81, P739

[7] YIELD STRESS OF NIOBIUM AND NIOBIUM-OXYGEN SOLID SOLUTIONS [J].

LOOMIS, BA ;

GERBER, SB .

SCRIPTA METALLURGICA, 1970, 4 (11) :921-&

[8]

Louchet F, 2000, PHILOS MAG A, V80, P765

[9] Attractive interaction between interstitial solutes and screw dislocations in bcc iron from first principles [J].

Luthi, B. ;

Ventelon, L. ;

Rodney, D. ;

Willaime, F. .

COMPUTATIONAL MATERIALS SCIENCE, 2018, 148 :21-26

[10] A critical review of high entropy alloys and related concepts [J].

Miracle, D. B. ;

Senkov, O. N. .

ACTA MATERIALIA, 2017, 122 :448-511

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