GRAIN-BOUNDARY SEGREGATION IN NICKEL-BASE SUPERALLOYS ASTROLOY - AN ATOM-PROBE STUDY

被引：23

作者：

LETELLIER, L ^{[1
]}

CHAMBRELAND, S ^{[1
]}

DUVAL, P ^{[1
]}

BLAVETTE, D ^{[1
]}

机构：

[1] FAC SCI & TECH ROUEN,MICROSCOPIE ELECTR,CNRS,URA 808,F-76134 MONT ST AIGNAN,FRANCE

来源：

APPLIED SURFACE SCIENCE | 1993年 / 67卷 / 1-4期

关键词：

D O I：

10.1016/0169-4332(93)90330-E

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

TEM and atom-probe techniques are used in a combined way for the study of straight and serrated grain boundaries in nickel base superalloys such as Astroloy. These two types of boundaries lead to very different mechanical properties. Experimental conditions are discussed. It is shown that the investigation of boundaries which are perpendicular to the tip axis may lead to biased composition data. Concerning serrated boundaries, microanalyses show that boron and a small amount of carbon segregate at grain boundaries, however, zirconium does not.

引用

页码：305 / 310

页数：6

共 12 条

[1] A NEW DETECTION SYSTEM FOR AN ATOM PROBE FIM [J].

BLAVETTE, D ;

BOSTEL, A ;

SARRAU, JM .

JOURNAL DE PHYSIQUE, 1986, 47 (C-2) :473-477

[2] ATOM-PROBE MICROANALYSIS OF A NICKEL-BASE SUPERALLOY [J].

BLAVETTE, D ;

BOSTEL, A ;

SARRAU, JM .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1985, 16 (10) :1703-1711

[3] FIM ATOM PROBE ANALYSIS OF GRAIN-BOUNDARIES IN B-DOPED NI3AL [J].

BRENNER, SS ;

HUA, MJ .

SCRIPTA METALLURGICA ET MATERIALIA, 1991, 25 (06) :1271-1276

[4] PHASE-COMPOSITION AND GRAIN-BOUNDARY SEGREGATION IN A NICKEL-BASE SUPERALLOY - A PRELIMINARY TEM-APFIM INVESTIGATION [J].

BUCHON, A ;

MENAND, A ;

BLAVETTE, D .

SURFACE SCIENCE, 1991, 246 (1-3) :218-224

[5]

BUCHON A, 1991, THESIS

[6] EFFECT OF BORON ON GRAIN-BOUNDARIES IN NI3AL [J].

LIU, CT ;

WHITE, CL ;

HORTON, JA .

ACTA METALLURGICA, 1985, 33 (02) :213-229

[7]

LOYERDANFLOU H, 1992, IN PRESS SUPERALLOYS

[8] THE GROWTH OF GAMMA'-PRECIPITATES IN NICKEL-BASE SUPER-ALLOYS [J].

RICKS, RA ;

PORTER, AJ ;

ECOB, RC .

ACTA METALLURGICA, 1983, 31 (01) :43-53

[9]

ROLANDER U, 1986, J PHYS PARIS S11, V47

[10] GRAIN-BOUNDARY ACCOMMODATION OF SLIP IN NI3AL CONTAINING BORON [J].

SCHULSON, EM ;

WEIHS, TP ;

BAKER, I ;

FROST, HJ ;

HORTON, JA .

ACTA METALLURGICA, 1986, 34 (07) :1395-1399

← 1 2 →