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

[21] THE INTERACTION OF DISLOCATIONS AND PRECIPITATES [J].

NICHOLSON, RB ;

THOMAS, G ;

NUTTING, J .

ACTA METALLURGICA, 1960, 8 (03) :172-176

[22]

NICHOLSON RB, 1958, J I MET, V87, P429

[23] A RESISTOMETRIC STUDY OF PRE-PRECIPITATION IN AL-10-PERCENT ZN [J].

PANSERI, C ;

FEDERIGHI, T .

ACTA METALLURGICA, 1960, 8 (04) :217-238

[24]

PANSERI C, 1964, ACTA METALL, V11, P575

[25]

PARKER ER, 1954, RELATION PROPERTIES

[26] SOLUTE-VACANCY INTERACTION ENERGIES AND EFFECT OF 0.009 AT.PERCENT MG ON AGEING KINETICS OF AN A1-4.01 AT.PERCENT ZN ALLOY [J].

PERRY, AJ .

ACTA METALLURGICA, 1966, 14 (10) :1143-&

[27]

POLMEAR IJ, 1957, J I MET, V86, P113

[28]

SCHMALZRIED H, 1958, Z METALLKD, V49, P291

[29] OBSERVATIONS OF SIDE-BANDS ON X-RAY PATTERNS OF INTERMETALLIC COMPOUND TINI [J].

STARKE, EA ;

LEE, EU .

MATERIALS RESEARCH BULLETIN, 1967, 2 (02) :231-&

[30]

THOMAS G, 1959, J I MET, V88, P81

← 1 2 3 →