BRITTLE-DUCTILE TRANSITION IN INTRINSIC FRACTURE-BEHAVIOR OF CRYSTALS

被引：65

作者：

CHEUNG, KS

YIP, S

机构：

来源：

PHYSICAL REVIEW LETTERS | 1990年 / 65卷 / 22期

关键词：

D O I：

10.1103/PhysRevLett.65.2804

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

A transition of brittle to ductile propagation of a sharp crack in a crystal is observed by molecular-dynamics simulation and the transition mechanism shown to be the emission of dislocations at the crack tip and activation of specific slip systems appropriate to the crystal structure. Implications for extension of current theories are discussed. © 1990 The American Physical Society.

引用

页码：2804 / 2807

页数：4

共 14 条

[1] [Anonymous], 1968, THEORY DISLOCATIONS
[2] Brittle to ductile transition in cleavage fracture
Argon, A. S.
[J]. ACTA METALLURGICA, 1987, 35 (01): : 185 - 196
[3] CHEUNG KS, 1990, THESIS MIT
[4] CHEUNG KS, IN PRESS J APPL PHYS
[5] EMBEDDED-ATOM METHOD - DERIVATION AND APPLICATION TO IMPURITIES, SURFACES, AND OTHER DEFECTS IN METALS
DAW, MS
BASKES, MI
[J]. PHYSICAL REVIEW B, 1984, 29 (12): : 6443 - 6453
[6] MOLECULAR-DYNAMICS SIMULATION OF CRACK TIP PROCESSES IN ALPHA-IRON AND COPPER
DECELIS, B
ARGON, AS
YIP, S
[J]. JOURNAL OF APPLIED PHYSICS, 1983, 54 (09) : 4864 - 4878
[7] Griffith AA, 1920, PHILOS T R SOC, V221, P163, DOI DOI 10.1098/RSTA.1921.0006
[8] HAHN GT, 1959, FRACTURE, P91
[9] HARRISON RJ, 1989, ATOMISTIC SIMULATION OF MATERIALS : BEYOND PAIR POTENTIALS, P219
[10] THE BRITTLE DUCTILE TRANSITION IN SILICON .2. INTERPRETATION
HIRSCH, PB
ROBERTS, SG
SAMUELS, J
[J]. PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1989, 421 (1860): : 25 - 53

← 1 2 →