INDENTATION FRACTURE OF CEMENTED CARBIDE .1. SURVEY OF OPERATIVE FRACTURE MODES

被引：53

作者：

OGILVY, IM ^{[1
]}

PERROTT, CM ^{[1
]}

SUITER, JW ^{[1
]}

机构：

[1] UNIV MELBOURNE,CSIRO,DIV TRIBOPHYS,PARKVILLE 3052,VICTORIA,AUSTRALIA

来源：

WEAR | 1977年 / 43卷 / 02期

关键词：

COBALT AND ALLOYS - MATERIALS TESTING - Fracture - TUNGSTEN CARBIDE - Sintered;

D O I：

10.1016/0043-1648(77)90117-X

中图分类号：

TH [机械、仪表工业];

学科分类号：

0802 ;

摘要：

The range of fracture processes which may occur beneath Vickers indentations in sintered tungsten carbide-cobalt composites is described. It is shown that the mode of fracture may be altered by changing the conditions of loading. In all cases, the cracks remain within the plastic zone of the indentation from which they stem. They do not penetrate the elastic strain field, as is found with brittle solids. The need for an explicit model of the elastic-plastic contact stresses for the discussion of surface fracture behavior is established.

引用

页码：239 / 252

页数：14

共 26 条

[1]

Almond E. A., 1973, Conference on Scanning Electron Microscopy: Systems and Applications 1973, P106

[2] QUASI-STATIC SOLID PARTICLE DAMAGE IN BRITTLE SOLIDS .1. OBSERVATIONS, ANALYSIS AND IMPLICATIONS [J].

EVANS, AG ;

WILSHAW, TR .

ACTA METALLURGICA, 1976, 24 (10) :939-956

[3]

EXNER HE, 1969, T METALL SOC AIME, V245, P677

[4]

HILL R, 1950, MATH THEORY PLASTICI, pCH5

[5] EFFECT OF INDENTER ELASTICITY ON HERTZIAN FRACTURE OF BRITTLE MATERIALS [J].

JOHNSON, KL ;

OCONNOR, JJ ;

WOODWARD, AC .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1973, 334 (1596) :95-117

[6] CORRELATION OF INDENTATION EXPERIMENTS [J].

JOHNSON, KL .

JOURNAL OF THE MECHANICS AND PHYSICS OF SOLIDS, 1970, 18 (02) :115-&

[7]

KREIMER GS, 1968, STRENGTH HARD ALLOYS

[8] ABRASIVE WEAR OF TUNGSTEN CARBIDE-COBALT COMPOSITES .1. ROTARY DRILLING TESTS [J].

LARSENBASSE, J ;

PERROTT, CM ;

ROBINSON, PM .

MATERIALS SCIENCE AND ENGINEERING, 1974, 13 (02) :83-91

[9]

LARSENBASSE J, 1973, POWDER METALL, V16, P1

[10]

LARSENBASSE J, 1974, COB ABSTR

← 1 2 3 →