Comparative analysis of the aging kinetics in low-alloyed Cu-Cr-Hf and Cu-Cr-Zr alloys after high pressure torsion

被引：14

作者：

Rybalchenko, O. V. ^{[1
]}

Bochvar, N. R. ^{[1
]}

Rybalchenko, G. V. ^{[2
]}

Martynenko, N. S. ^{[1
]}

Tabachkova, N. Yu. ^{[3
,4
]}

Dobatkin, S. V. ^{[1
,3
]}

机构：

[1] Russian Acad Sci, A A Baikov Inst Met & Mat Sci, Leninsky Prospect,49, Moscow 119334, Russia

[2] Russian Acad Sci, P N Lebedev Phys Inst, Leninsky Prospect,53, Moscow 119334, Russia

[3] Natl Univ Sci & Technol MISIS, Leninsky prospect,4, Moscow 119049, Russia

[4] Russian Acad Sci, A M Prokhorov Gen Phys Inst, Vavilov Str,38, Moscow 119333, Russia

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2023年 / 955卷

关键词：

Cu; Cr; Hf and Cu; Zr alloys; High pressure torsion; Phase precipitation; Thermal analysis; Microhardness; Electrical properties; HEAT-TREATMENT; PRECIPITATION; MICROSTRUCTURE; ZIRCONIUM; BEHAVIOR; CONDUCTIVITY; MECHANISMS; CORROSION;

D O I：

10.1016/j.jallcom.2023.170246

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

The kinetics of phase precipitation during aging in the Cu - Cr - Hf and Cu - Cr - Zr alloys after high pressure torsion (HPT) has been studied and compared with quenching state. The effect of HPT on the kinetics of aging was revealed by the differential scanning calorimetry (DSC) and confirmed by changes in the microhardness and electrical resistivity. Analysis of the microstructure and phase precipitation after HPT and subsequent aging using a transmission electron microscopy (TEM) and energy dispersive spec-troscopy (EDS) revealed three types of phases in each of the alloys: Cu matrix, chromium and zirconium-or hafnium-rich phases. By measuring the microhardness, a higher degree hardening after HPT and subsequent aging was revealed in the Cu - Cr - Hf alloy compared to the Cu - Cr - Zr alloy.(c) 2023 Elsevier B.V. All rights reserved.

引用

页数：9

共 27 条

[1] DSC analysis of commercial Cu-Cr-Zr alloy processed by equal channel angular pressing [J].

Abib, K. ;

Larbi, F. Hadj ;

Rabahi, L. ;

Alili, B. ;

Bradai, D. .

TRANSACTIONS OF NONFERROUS METALS SOCIETY OF CHINA, 2015, 25 (03) :838-843

[2] Microstructure and properties of a Cu-Cr-Zr alloy [J].

Batra, IS ;

Dey, GK ;

Kulkarni, UD ;

Banerjee, S .

JOURNAL OF NUCLEAR MATERIALS, 2001, 299 (02) :91-100

[3] Effect of equal-channel angular pressing on the precipitation kinetics in Cu-Cr-Hf alloys [J].

Bochvar, N. R. ;

Rybalchenko, O., V ;

Shangina, D., V ;

Dobatkin, S., V .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2019, 757 (84-87) :84-87

[4] Stored energy, vacancies and thermal stability of ultra-fine grained copper [J].

Cao, W. Q. ;

Gu, C. F. ;

Pereloma, E. V. ;

Daviesa, C. H. J. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2008, 492 (1-2) :74-79

[5] CHARACTERIZATION OF HOT DEFORMATION-BEHAVIOR OF ZR-2.5NB-0.5CU USING PROCESSING MAPS [J].

CHAKRAVARTTY, JK ;

DEY, GK ;

BANERJEE, S ;

PRASAD, YVRK .

JOURNAL OF NUCLEAR MATERIALS, 1995, 218 (02) :247-255

[6] Atomic scale investigation of Cr precipitation in copper [J].

Chbihi, A. ;

Sauvage, X. ;

Blavette, D. .

ACTA MATERIALIA, 2012, 60 (11) :4575-4585

[7] Some thoughts on the mechanisms of in-reactor corrosion of zirconium alloys [J].

Cox, B .

JOURNAL OF NUCLEAR MATERIALS, 2005, 336 (2-3) :331-368

[8]

Drits M.E., 1975, METALS-BASEL, P217

[9]

FEDOROV VN, 1972, ZH FIZ KHIM+, V46, P181

[10] The precipitation behaviour of ITER-grade Cu-Cr-Zr alloy after simulating the thermal cycle of hot isostatic pressing [J].

Holzwarth, U ;

Stamm, H .

JOURNAL OF NUCLEAR MATERIALS, 2000, 279 (01) :31-45

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