THE FRACTURE-RESISTANCE OF DIRECTIONALLY SOLIDIFIED DUAL-PHASE NIAL REINFORCED WITH REFRACTORY-METALS

被引：96
作者：
HEREDIA, FE
HE, MY
LUCAS, GE
EVANS, AG
DEVE, HE
KONITZER, D
机构：
[1] GE, DIV ENGINE, CINCINNATI, OH USA
[2] THREE M CO, ST PAUL, MN 55144 USA
来源：
ACTA METALLURGICA ET MATERIALIA | 1993年 / 41卷 / 02期
关键词：
D O I：
10.1016/0956-7151(93)90079-8
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The fracture resistance of two directionally-solidified, NiAl refractory metal systems has been measured and analyzed. One system, NiAl/Mo, has a microstructure consisting of Mo rods. The second system, NiAl/Cr(Mo), has a layered microstructure. Both materials are found to have an appreciably higher initiation toughness than NiAl, followed by a rising resistance, with the layered microstructure giving the superior properties. The results have been rationalized by available models based on the following three mechanisms: crack trapping, crack renucleation and ductile phase bridging.
引用
收藏
页码：505 / 511
页数：7
相关论文
共 25 条
  • [1] FLOW CHARACTERISTICS OF HIGHLY CONSTRAINED METAL WIRES
    ASHBY, MF
    BLUNT, FJ
    BANNISTER, M
    [J]. ACTA METALLURGICA, 1989, 37 (07): : 1847 - 1857
  • [2] THE DEFORMATION AND FRACTURE OF CONSTRAINED METAL SHEETS
    BANNISTER, M
    ASHBY, MF
    [J]. ACTA METALLURGICA ET MATERIALIA, 1991, 39 (11): : 2575 - 2582
  • [3] EFFECTS OF INTERFACE DEBONDING ON THE TOUGHNESS OF DUCTILE PARTICLE REINFORCED CERAMICS
    BAO, G
    HUI, CY
    [J]. INTERNATIONAL JOURNAL OF SOLIDS AND STRUCTURES, 1990, 26 (5-6) : 631 - 642
  • [4] A 3-DIMENSIONAL ANALYSIS OF CRACK TRAPPING AND BRIDGING BY TOUGH PARTICLES
    BOWER, AF
    ORTIZ, M
    [J]. JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1991, 39 (06) : 815 - 858
  • [5] BOWER AF, IN PRESS J MECH PHYS
  • [6] ON CRACK EXTENSION IN DUCTILE/BRITTLE LAMINATES
    CAO, HC
    EVANS, AG
    [J]. ACTA METALLURGICA ET MATERIALIA, 1991, 39 (12): : 2997 - 3005
  • [7] CHAN KF, UNPUB MATER SCI ENG
  • [8] STRUCTURES, FAULTS AND ROD-PLATE TRANSITION IN EUTECTICS
    CLINE, HE
    WALTER, JL
    LIFSHIN, E
    RUSSELL, RR
    [J]. METALLURGICAL TRANSACTIONS, 1971, 2 (01): : 189 - &
  • [9] CLINE HE, 1970, METALL TRANS, V1, P2907
  • [10] DUCTILE REINFORCEMENT TOUGHENING OF GAMMA-TIAL - EFFECTS OF DEBONDING AND DUCTILITY
    DEVE, HE
    EVANS, AG
    ODETTE, GR
    MEHRABIAN, R
    EMILIANI, ML
    HECHT, RJ
    [J]. ACTA METALLURGICA ET MATERIALIA, 1990, 38 (08): : 1491 - 1502
123