Microstructure of second-phase particles in high-temperature Ti-55 alloy after creep

被引:7
作者
Li, GP
Li, D
Liu, YY
Guan, SX
Wang, QJ
Hu, ZQ
机构
[1] Institute of Metal Research, Chinese Academy of Sciences
关键词
D O I
10.1016/S1044-5803(96)00093-9
中图分类号
T [工业技术];
学科分类号
08 ;
摘要
The microstructure of the second-phase particles in the Ti-55 alloy (Ti-5Al-4Sn-2Zr-1Mo-0.25Si-1Nd) have been studied by transmission electron microscopy. The second-phase particles present consist of a ''matrix'' (which can be either dark or bright) and some small dark blocks dispersed within this matrix. The dark blots correspond to Sn3O4 (triclinic structure, with a = 0.486nm, b = 0.588nm and c = 0.820nm). The matrix consists of a nanocrystalline phase with a stoichiometric Nd3Sn structure having a space group of Pm3m and a lattice parameter of a = 0.344nm. (C) Elsevier Science Inc., 1996.
引用
收藏
页码:183 / 186
页数:4
相关论文
共 14 条
[1]  
BHASKARAN TA, 1992, INT J RAPID SOLIDIF, V7, P127
[2]  
GSCHNEIDNER KA, 1979, HDB PHYSICS CHEM RAR, P16
[3]  
HILTZ RH, 1958, T AM I MIN MET ENG, V212, P383
[4]   THE NATURE OF DISPERSED PHASES IN TI-0.7 AT-PERCENT ER PREPARED BY RAPID SOLIDIFICATION PROCESSING [J].
KONITZER, DG ;
STANLEY, JT ;
LORETTO, MH ;
FRASER, HL .
ACTA METALLURGICA, 1986, 34 (07) :1269-1277
[5]   A COMPARISON OF THE MICROSTRUCTURES OF AS-CAST AND LASER SURFACE MELTED TI-8AL-4Y [J].
KONITZER, DG ;
MUDDLE, BC ;
FRASER, HL .
METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1983, 14 (10) :1979-1988
[6]  
LI D, 1987, TITANIUM SCI ENG, V2, P49
[7]  
LI GP, 1993, TITANIUM SCI ENG, V1, P588
[8]   INTERCRYSTALLINE HYDROGEN TRANSPORT IN NANOCRYSTALLINE NICKEL [J].
PALUMBO, G ;
DOYLE, DM ;
ELSHERIK, AM ;
ERB, U ;
AUST, KT .
SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (03) :679-684
[9]  
PEARSON WB, 1958, HDB LATTICE SPACINGS, P89
[10]   EFFECT OF YTTRIUM AND ERBIUM DISPERSOIDS ON THE DEFORMATION-BEHAVIOR OF TITANIUM [J].
SASTRY, SML ;
ONEAL, JE ;
LEDERICH, RJ ;
RATH, BB .
JOURNAL OF MATERIALS SCIENCE, 1979, 14 (01) :179-183