Orientation relationship between Nb and Nb5Si3 (D81) phases in the eutectoid lamellar microstructure

被引：19
作者：
Sekido, N
Wei, FG
Kimura, Y
Miura, S
Mishima, Y
机构：
[1] Tokyo Inst Technol, Dept Mat Sci & Engn, Yokohama, Kanagawa 2268502, Japan
[2] Natl Inst Mat Sci, Steel Res Ctr, Tsukuba, Ibaraki 3050047, Japan
[3] Hokkaido Univ, Div Engn & Mat Sci, Sapporo, Hokkaido 0600813, Japan
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2006年 / 86卷 / 02期
关键词：
D O I：
10.1080/09500830600567701
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The crystallography of a Nb/Nb5Si3 lamellar microstructure formed by Nb3Si decomposition has been investigated by transmission election microscopy. Upon solidification of a Nb-10 at.% Ti-20 at.% Si alloy, the high-temperature phase Nb3Si is retained at room temperature. During annealing at 1673 K, the Nb3Si phase transforms into the Nb and Nb5Si3 (D8(1)) phases with a lamellar microstructure through a eutectoid reaction. The orientation relationship between Nb and Nb5Si3 is determined by selected-area diffraction analyses as (01(1) over bar) (Nb)//(12(3) over bar)(Nb5Si3), and [133](Nb)//[111](Nb5Si3). The present orientation relationship is explained by good atomic matching on the close-packed planes along the near close-packed directions.
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页码：89 / 98
页数：10
相关论文
共 40 条
[1]  
Bagaryatskii Y., 1950, DOKL AKAD NAUK SSSR, V73, P1161
[2]   Refractory metal intermetallic in-situ composites for aircraft engines [J].
Bewlay, BP ;
Lewandowksi, JJ ;
Jackson, MR .
JOM-JOURNAL OF THE MINERALS METALS & MATERIALS SOCIETY, 1997, 49 (08) :44-+
[3]   Ultrahigh-temperature Nb-silicide-based composites [J].
Bewlay, BP ;
Jackson, MR ;
Zhao, JC ;
Subramanian, PR ;
Mendiratta, MG ;
Lewandowski, JJ .
MRS BULLETIN, 2003, 28 (09) :646-653
[4]   A review of very-high-temperature Nb-silicide-based composites [J].
Bewlay, BP ;
Jackson, MR ;
Zhao, JC ;
Subramanian, PR .
METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 2003, 34A (10) :2043-2052
[5]  
BEWLAY BP, 1995, MATER RES SOC SYMP P, V364, P943, DOI 10.1557/PROC-364-943
[6]   SOLIDIFICATION PROCESSING OF HIGH-TEMPERATURE INTERMETALLIC EUTECTIC-BASED ALLOYS [J].
BEWLAY, BP ;
LIPSITT, HA ;
JACKSON, MR ;
REEDER, WJ ;
SUTLIFF, JA .
MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 1995, 192 :534-543
[7]   On the process of transition of the cubic-body-centered modification into the hexagonal-close-packed modification of zirconium [J].
Burgers, WG .
PHYSICA, 1934, 1 :561-586
[8]  
Cullity B. D., ELEMENTS XRAY DIFFRA
[9]   APPLICATION OF THE INVARIANT LINE MODEL FOR BCC/HCP COUPLES - A CRITERION BASED ON SURFACE VARIATIONS [J].
DULY, D .
ACTA METALLURGICA ET MATERIALIA, 1993, 41 (05) :1559-1566
[10]   STRUCTURE OF NEARLY COHERENT FCC-BCC BOUNDARIES IN A CU-CR ALLOY [J].
HALL, MG ;
AARONSON, HI ;
KINSMA, KR .
SURFACE SCIENCE, 1972, 31 (01) :257-&
1234