Effect of cold working on ordering of an equiatomic CuPt alloy

被引：0

作者：

Hisatsune, K ^{[1
]}

Shiraishi, T ^{[1
]}

Takuma, Y ^{[1
]}

Tanaka, Y ^{[1
]}

Miura, E ^{[1
]}

机构：

[1] Nagasaki Univ, Div Dent & Biomed Mat Sci, Dept Dev & Reconstruct Med, Course Med & Dent Sci,Grad Sch Biomed Sci, Nagasaki 8528588, Japan

来源：

JOURNAL OF ALLOYS AND COMPOUNDS | 2005年 / 391卷 / 1-2期

关键词：

intermetallics; metals; point defects; X-ray diffraction; calorimetry; ordering; cold working;

D O I：

10.1016/j.jallcom.2004.08.022

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：

Effect of cold working on the ordering of an equiatomic CuPt alloy during continuous heating was studied by means of electrical resistivity measurements, hardness tests, differential scanning calorimetry, and X-ray diffraction. The ordering after cold working occurred in three stages with remarkable acceleration, namely, the migration and the annihilation of excess vacancies (I-a), those of secondary defects (I-b) and the migration of equilibrium vacancies (II) as well as that of quenched sample. The lattice defects introduced by cold working advanced the stages I-a and I-b, and therefore decreased the stage II. There existed two temperature regions with softening due to ordering enhanced recrystallization and normal recrystallization. (c) 2004 Elsevier B.V. All rights reserved.

引用

页码：38 / 41

页数：4

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