GRAIN-GROWTH AND CHEMICAL ORDERING IN (FE,MN)(3)SI

被引：62

作者：

BANSAL, C

GAO, ZQ

FULTZ, B

机构：

来源：

NANOSTRUCTURED MATERIALS | 1995年 / 5卷 / 03期

关键词：

D O I：

10.1016/0965-9773(95)00236-8

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanophase, chemically-disordered bcc alloys of Fe3Si and Fe2.7Mn0.3Si were prepared by mechanical attrition. Using x-ray diffractometry and Mossbauer spectrometry, the kinetics of grain growth and DO3 ordering in these two alloys were compared for a variety of annealing temperatures and times. Compared to binary Fe3Si, in Fe2.7Mn0.3Si the ordering kinetics was accelerated bur the grain growth kinetics was retarded Both alloys had their highest grain boundary mobilities when they were chemically disordered, and we suggest that the faster ordering kinetics in Fe2.7Mn0.3Si may suppress its grain growth. Another difference between the two alloys was an early clustering of Mn atoms (possibly a grain boundary segregation).

引用

页码：327 / 336

页数：10

共 18 条

[1] ISOMER-SHIFTS AND THEIR RELATION TO CHARGE-TRANSFER IN DILUTE FE ALLOYS [J].

AKAI, H ;

BLUGEL, S ;

ZELLER, R ;

DEDERICHS, PH .

PHYSICAL REVIEW LETTERS, 1986, 56 (22) :2407-2410

[2]

Buckley R. A., 1975, Metal Science, V9, P243, DOI 10.1179/030634575790445080

[3]

CHEN C, 1986, MAGNETISM METALLURGY

[4] LOCAL AND NONLOCAL ISOMER-SHIFTS IN BCC FE-X ALLOYS (X=AL,SI,GA,GE) [J].

FULTZ, B ;

HAMDEH, HH ;

OLIVER, SA ;

GAO, ZQ .

PHYSICAL REVIEW B, 1994, 49 (09) :6312-6315

[5] Thermal stability of nanocrystalline Fe-Si-Nb prepared by mechanical alloying [J].

Gao, Z. ;

Fultz, B. .

Nanostructured Materials, 1993, 2 (03)

[6]

Gao Z. Q., 1994, Nanostructured Materials, V4, P939, DOI 10.1016/0965-9773(94)90100-7

[7] TRANSIENT B32-LIKE ORDER DURING THE EARLY STAGES OF ORDERING IN UNDERCOOLED FE3AL [J].

GAO, ZQ ;

FULTZ, B .

PHILOSOPHICAL MAGAZINE B-PHYSICS OF CONDENSED MATTER STATISTICAL MECHANICS ELECTRONIC OPTICAL AND MAGNETIC PROPERTIES, 1993, 67 (06) :787-800

[8] THERMAL-STABILITY OF FE3SI-BASED NANOCRYSTALS [J].

GAO, ZQ ;

FULTZ, B .

HYPERFINE INTERACTIONS, 1994, 94 (1-4) :2213-2218

[9]

Klug H. P., 1974, XRAY DIFFRACTION PRO, P652

[10]

KUMARAN JT, 1989, SOLID STATE COMMUN, V69, P77

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