Structural properties and stability of metastable phases in the Zr-Nb system: Part I. Systematics of quenching-and-aging experiments

被引：0

作者：

G. Aurelio

A. Fernández Guillermet

G. J. Cuello

J. Campo

机构：

[1] the Centro Atomico Bariloche and CONICET,the Instituto de Ciencia de Materiales de Aragon

[2] Bariloche (RN),undefined

[3] the Institute Laue-Langevin,undefined

[4] CSIC-Universidad de Zaragoza,undefined

来源：

Metallurgical and Materials Transactions A | 2001年 / 32卷

关键词：

Material Transaction; Aging Time; Metastable Phasis; Phase Fraction; Versus Phase;

D O I：

暂无

中图分类号：

学科分类号：

摘要：

An experimental study is presented of the effect of an isothermal treatment (“aging”) at 773 K upon the structural properties of three metastable phases formed by quenching Zr-Nb alloys from 1273 K, viz. hcp (α), bcc (β), and Ω. Using neutron-diffraction (ND) measurements and Rietveld analysis, the lattice parameters (LPs) and the constitution of Zr-Nb alloys with up to 18 at. pct Nb are determined. By combining these data with the LP vs at. pct Nb relations previously determined by us on quenched alloys, an analysis is performed of the composition changes and phase reactions occuring upon aging. The present results open up the possibility of using quenching-and-aging experiments to gain insight into the α+β metastable equilibrium in the Zr-rich side of the Zr-Nb system.

引用

页码：1903 / 1910

页数：7

共 16 条

[1] Structural properties and stability of metastable phases in the Zr-Nb system: Part I. Systematics of quenching-and-aging experiments
Aurelio, G
Guillermet, AF
Cuello, GJ
Campo, J
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2001, 32 (08): : 1903 - 1910
[2] Structural properties and stability of metastable phases in the Zr-Nb system
Aurelio, G
Guillermet, AF
Cuello, GJ
Bozzano, PB
[J]. CROSS-DISCIPLINARY APPLIED RESEARCH IN MATERIALS SCIENCE AND TECHNOLOGY, 2005, 480 : 565 - 572
[3] Structural properties and stability of metastable phases in the Zr-Nb system:: part II.: Aging of Bcc (β) alloys and assessment of β-Zr
Aurelio, G
Guillermet, AF
Cuello, GJ
Campo, J
[J]. METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (12): : 2771 - 2779
[4] Structural properties and stability of metastable phases in the Zr-Nb system: Part II. Aging of bcc (β) alloys and assessment of β-Zr
G. Aurelio
A. Fernández Guillermet
G. J. Cuello
J. Campo
[J]. Metallurgical and Materials Transactions A, 2003, 34 : 2771 - 2779
[5] Structural properties of metastable phases in Zr-Nb alloys I. Neutron diffraction study and analysis of lattice parameters
Benites, GM
Guillermet, AF
Cuello, GJ
Campo, J
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 299 (1-2) : 183 - 188
[6] Structural properties of metastable phases in Zr-Nb alloys II. Systematics of the atomic volumes and interatomic distances
Benites, GM
Guillermet, AF
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2000, 302 (1-2) : 192 - 198
[7] Structural properties of metastable phases in Zr-Nb alloys III.: The athermal Ω phase
Aurelio, G
Guillermet, AF
Cuello, GJ
Campo, J
[J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2002, 335 (1-2) : 132 - 138
[8] Structural properties and stability of the bcc and omega phases in the Zr-Nb system .2. Composition dependence of the lattice parameters
Grad, GB
Guillermet, AF
Pieres, JJ
Cuello, GJ
[J]. ZEITSCHRIFT FUR METALLKUNDE, 1996, 87 (09): : 721 - 725
[9] Structural properties and high-temperature reactions of the metastable Ω phase in Zr-Nb alloys
Aurelio, G
Guillermet, AF
Cuello, GJ
Campo, J
[J]. JOURNAL OF NUCLEAR MATERIALS, 2005, 341 (01) : 1 - 11
[10] Structural properties and stability of the bcc and omega phases in the Zr-Nb system .3. Analysis of interatomic distances and chemical bonding effects
Grad, GB
Guillermet, AF
Granada, JR
[J]. ZEITSCHRIFT FUR METALLKUNDE, 1996, 87 (09): : 726 - 731

← 1 2 →