Preprecipitation in Al/Zn/Mg Alloys Studied by Hardness and Small-Angle X-ray Scattering Measurements

被引：17

作者：

Bardhan, P. ^{[1
]}

Starke, A., Jr. ^{[1
]}

机构：

[1] Georgia Inst Technol, Sch Chem Engn, Atlanta, GA 30332 USA

来源：

JOURNAL OF MATERIALS SCIENCE | 1968年 / 3卷 / 06期

基金：

美国国家航空航天局;

关键词：

D O I：

10.1007/BF00757902

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Small-angle X-ray scattering techniques and hardness measurements have been used to study preprecipitation in two AI/Zn/Mg alloys containing the same Zn content (2.46 at. %) but different Mg contents. Changes in Guinier-Preston (G-P) zone size are observed to follow the same pattern as changes in hardness. It is also observed that a critical zone size is required for the nucleation of the intermediate precipitate, eta'; the size being dependent on the Mg content. The role of Mg as a reversible-vacancy trap is also established.

引用

页码：577 / 583

页数：7

共 30 条

[1] DER EINFLUSS VON MG-SPUREN AUF DIE WIDERSTANDSANDERUNGEN BEI DER AUSHARTUNG VON AL-ZN-LEGIERUNGEN [J].

BARTSCH, G .

ACTA METALLURGICA, 1964, 12 (02) :270-&

[2]

BAUR R, 1964, ACTA METALL, V12, P1444

[3] RELATION ENTRE LES STRUCTURES ET LES PROPRIETES DES ALLIAGES ALUMINIUM-ARGENT PENDANT LE DURCISSEMENT STRUCTURAL [J].

BELBEOCH, B ;

GUINIER, A .

ACTA METALLURGICA, 1955, 3 (04) :370-379

[4] NUCLEATION OF PRECIPITATES - SYSTEM AL-ZN-MG [J].

EMBURY, JD ;

NICHOLSON, RB .

ACTA METALLURGICA, 1965, 13 (04) :403-+

[5] DIE ZONENBILDUNG IN ALUMINIUM ZINK-LEGIERUNGEN [J].

GEROLD, V .

PHYSICA STATUS SOLIDI, 1961, 1 (01) :37-49

[6]

GEROLD V, 1959, Z METALLKD, V50, P568

[7]

GEROLD V, 1964, ACTA METALL, V12, P954

[8]

Gould R. W., 1966, ADV XRAY ANAL, V9, P59

[9]

GRAF R, 1956, CR HEBD ACAD SCI, V242, P1311

[10]

GRAF R, 1957, CR HEBD ACAD SCI, V244, P337

← 1 2 3 →