Thermal behavior of the Cu-22.55 at.%Al alloy with small Ag additions

被引：8

作者：

Silva, R. A. G. ^{[4
]}

Adorno, A. T. ^{[1
]}

Magdalena, A. G. ^{[1
]}

Carvalho, T. M. ^{[1
]}

Stipcich, M. ^{[2
,3
]}

Cuniberti, A. ^{[2
,3
]}

Castro, M. L. ^{[2
,3
]}

机构：

[1] UNESP, Inst Quim, BR-14801970 Araraquara, SP, Brazil

[2] Univ Nacl Ctr Prov Buenos Aires, Inst Fis Mat Tandil, Fac Ciencias Exactas, RA-7000 Tandil, Argentina

[3] Consejo Nacl Invest Cient & Tecn, RA-1033 Buenos Aires, DF, Argentina

[4] UFS, Itabaiana, SE, Brazil

来源：

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY | 2011年 / 103卷 / 02期

基金：

巴西圣保罗研究基金会;

关键词：

alloys; phase transitions; CU-AL; KINETICS; SYSTEM; DECOMPOSITION;

D O I：

10.1007/s10973-010-0908-4

中图分类号：

O414.1 [热力学];

学科分类号：

摘要：

In this study the effect of Ag additions on the thermal behavior of the Cu-22.55 at.%Al alloy was studied using electrical resistivity measurements, in situ X-ray diffractometry, differential scanning calorimetry, and optical microscopy. The results indicated that Ag additions do not change the phase transformations sequence in the studied alloys, but modify its critical temperatures due to a change on entropy of system. It was verified that at the cooling rate of 10 K/min the decomposition of beta phase into (alpha + gamma(1)) is incomplete, but for lower cooling rates than 1.0 K/min this reaction is completed.

引用

页码：459 / 463

页数：5

共 13 条

[1] Thermal behavior of Cu-Al alloys near the α-Cu-Al solubility limit [J].