Fatigue-crack growth and fracture properties of coarse and fine-grained Ti3SiC2

被引：170

作者：

Gilbert, CJ ^{[1
]}

Bloyer, DR

Barsoum, MW

El-Raghy, T

Tomsia, AP

Ritchie, RO

机构：

[1] Univ Calif Berkeley, Lawrence Berkeley Lab, Div Mat Sci, Berkeley, CA 94720 USA

[2] Univ Calif Berkeley, Dept Mat Sci & Mineral Engn, Berkeley, CA 94720 USA

[3] Drexel Univ, Dept Mat Engn, Philadelphia, PA USA

来源：

SCRIPTA MATERIALIA | 2000年 / 42卷 / 08期

基金：

美国国家科学基金会;

关键词：

ceramics; Ti3SiC2; mechanical properties; fracture; fatigue;

D O I：

10.1016/S1359-6462(99)00427-3

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

An experimental study of fracture and cyclic fatigue-crack growth behavior was made in a reactively hot-pressed monolithic Ti3SiC2 ceramic with both fine and coarse-grained microstructure. Whereas the fine-grained microstructure exhibited a steady-state R-curve fracture toughness of Kc approx. 9.5 MPa√m, the coarse-grained Ti3SiC2 exhibited a Kc approx. 16 MPa√m.

引用

页码：761 / 767

页数：7

共 20 条

[1] Room-temperature ductile carbides [J].

Barsoum, MW ;

El-Raghy, T .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (02) :363-369

[2] Dislocations, kink bands, and room-temperature plasticity of Ti3SiC2 [J].

Barsoum, MW ;

Farber, L ;

El-Raghy, T .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1999, 30 (07) :1727-1738

[3] Thermal properties of Ti3SiC2 [J].

Barsoum, MW ;

El-Raghy, T ;

Rawn, CJ ;

Porter, WD ;

Wang, H ;

Payzant, EA ;

Hubbard, CR .

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS, 1999, 60 (04) :429-439

[4] Synthesis and characterization of a remarkable ceramic: Ti3SiC2 [J].

Barsoum, MW ;

ElRaghy, T .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1996, 79 (07) :1953-1956

[5] A FRICTIONAL-WEAR MECHANISM FOR FATIGUE-CRACK GROWTH IN GRAIN BRIDGING CERAMICS [J].

DAUSKARDT, RH .

ACTA METALLURGICA ET MATERIALIA, 1993, 41 (09) :2765-2781

[6] Processing and mechanical properties of Ti3SiC2:: II, effect of grain size and deformation temperature [J].

El-Raghy, T ;

Barsoum, MW ;

Zavaliangos, A ;

Kalidindi, SR .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1999, 82 (10) :2855-2860

[7]

ElRaghy T, 1997, J AM CERAM SOC, V80, P513, DOI 10.1111/j.1151-2916.1997.tb02861.x

[8]

Farber L, 1998, J AM CERAM SOC, V81, P1677, DOI 10.1111/j.1151-2916.1998.tb02532.x

[9] Mechanisms of cyclic fatigue-crack propagation in a fine-grained alumina ceramic: The role of crack closure [J].

Gilbert, CJ ;

Ritchie, RO .

FATIGUE & FRACTURE OF ENGINEERING MATERIALS & STRUCTURES, 1997, 20 (10) :1453-1466

[10] On the quantification of bridging tractions during subcritical crack growth under monotonic and cyclic fatigue loading in a grain-bridging silicon carbide ceramic [J].

Gilbert, CJ ;

Ritchie, RO .

ACTA MATERIALIA, 1998, 46 (02) :609-616

← 1 2 →