The Brittle Fracture of Polycrystalline Zinc

GM Hughes; GE Smith; PEJ Flewitt; AG Crocker

The Brittle Fracture of Polycrystalline Zinc

GM Hughes, GE Smith, PEJ Flewitt, AG Crocker

Research output: Contribution to journal › Article (Academic Journal) › peer-review

Abstract

In polycrystalline materials grain boundaries provide an important contribution to the resistance to the propagation of both brittle and ductile cracks. In this paper we describe experimental measurements of brittle cracks developed within both small punch and matchstick test specimens of polycrystalline hcp zinc. These specimens were tested over the temperature range 77 to 423K. Fractography undertaken using focussed ion beam imaging provides detail of the propagation from grain to grain and across {10-12}twins of (0001) basal and {10-10} prismatic cleavage cracks. The results are discussed by comparison with the predictions from previously described 3-D geometric modelling applied to this hcp polycrystalline material.

Translated title of the contribution	The Brittle Fracture of Polycrystalline Zinc
Original language	English
Pages (from-to)	41 - 44
Number of pages	4
Journal	Key Engineering Materials
Volume	348-349
Publication status	Published - 2007

Bibliographical note

Publisher: Trans Tech Publications, Switzerland
Other: http://www.scientific.net/0-87849-448-0/1.html

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http://www.scientific.net/0-87849-448-0/41/

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title = "The Brittle Fracture of Polycrystalline Zinc",

abstract = "In polycrystalline materials grain boundaries provide an important contribution to the resistance to the propagation of both brittle and ductile cracks. In this paper we describe experimental measurements of brittle cracks developed within both small punch and matchstick test specimens of polycrystalline hcp zinc. These specimens were tested over the temperature range 77 to 423K. Fractography undertaken using focussed ion beam imaging provides detail of the propagation from grain to grain and across {10-12}twins of (0001) basal and {10-10} prismatic cleavage cracks. The results are discussed by comparison with the predictions from previously described 3-D geometric modelling applied to this hcp polycrystalline material.",

author = "GM Hughes and GE Smith and PEJ Flewitt and AG Crocker",

note = "Publisher: Trans Tech Publications, Switzerland Other: http://www.scientific.net/0-87849-448-0/1.html",

year = "2007",

language = "English",

volume = "348-349",

pages = "41 -- 44",

journal = "Key Engineering Materials",

issn = "1013-9826",

publisher = "Trans Tech Publications Inc",

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TY - JOUR

T1 - The Brittle Fracture of Polycrystalline Zinc

AU - Hughes, GM

AU - Smith, GE

AU - Flewitt, PEJ

AU - Crocker, AG

N1 - Publisher: Trans Tech Publications, Switzerland Other: http://www.scientific.net/0-87849-448-0/1.html

PY - 2007

Y1 - 2007

N2 - In polycrystalline materials grain boundaries provide an important contribution to the resistance to the propagation of both brittle and ductile cracks. In this paper we describe experimental measurements of brittle cracks developed within both small punch and matchstick test specimens of polycrystalline hcp zinc. These specimens were tested over the temperature range 77 to 423K. Fractography undertaken using focussed ion beam imaging provides detail of the propagation from grain to grain and across {10-12}twins of (0001) basal and {10-10} prismatic cleavage cracks. The results are discussed by comparison with the predictions from previously described 3-D geometric modelling applied to this hcp polycrystalline material.

AB - In polycrystalline materials grain boundaries provide an important contribution to the resistance to the propagation of both brittle and ductile cracks. In this paper we describe experimental measurements of brittle cracks developed within both small punch and matchstick test specimens of polycrystalline hcp zinc. These specimens were tested over the temperature range 77 to 423K. Fractography undertaken using focussed ion beam imaging provides detail of the propagation from grain to grain and across {10-12}twins of (0001) basal and {10-10} prismatic cleavage cracks. The results are discussed by comparison with the predictions from previously described 3-D geometric modelling applied to this hcp polycrystalline material.

M3 - Article (Academic Journal)

VL - 348-349

SP - 41

EP - 44

JO - Key Engineering Materials

JF - Key Engineering Materials

SN - 1013-9826

ER -