Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders

H. J. Choi; S. W. Lee; J. S. Park; D. H. Bae

doi:10.1016/j.scriptamat.2008.07.030

Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders

H. J. Choi, S. W. Lee, J. S. Park, D. H. Bae

Department of Materials Science and Engineering

Research output: Contribution to journal › Article › peer-review

64 Citations (Scopus)

Abstract

The deformation behavior of bulk nanocrystalline aluminum down to 48 nm in grain size, produced by hot extrusion of ball-milled powders, has been evaluated by compression and tension tests. Isotropic yield stress increases following the Hall-Petch relationship with decreasing grain size down to 70 nm. However, a positive deviation in the relationship is found for grain sizes below 70 nm, and aluminum with a grain size of 48 nm exhibits a superior yield stress of 500 MPa with ductile failure.

Original language	English
Pages (from-to)	1123-1126
Number of pages	4
Journal	Scripta Materialia
Volume	59
Issue number	10
DOIs	https://doi.org/10.1016/j.scriptamat.2008.07.030
Publication status	Published - 2008 Nov

All Science Journal Classification (ASJC) codes

Materials Science(all)
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering
Metals and Alloys

Access to Document

10.1016/j.scriptamat.2008.07.030

Cite this

@article{b3d5c80e64fb46bdb91c77baa53cfe1c,

title = "Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders",

abstract = "The deformation behavior of bulk nanocrystalline aluminum down to 48 nm in grain size, produced by hot extrusion of ball-milled powders, has been evaluated by compression and tension tests. Isotropic yield stress increases following the Hall-Petch relationship with decreasing grain size down to 70 nm. However, a positive deviation in the relationship is found for grain sizes below 70 nm, and aluminum with a grain size of 48 nm exhibits a superior yield stress of 500 MPa with ductile failure.",

author = "Choi, {H. J.} and Lee, {S. W.} and Park, {J. S.} and Bae, {D. H.}",

year = "2008",

month = nov,

doi = "10.1016/j.scriptamat.2008.07.030",

language = "English",

volume = "59",

pages = "1123--1126",

journal = "Scripta Materialia",

issn = "1359-6462",

publisher = "Elsevier Limited",

number = "10",

}

TY - JOUR

T1 - Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders

AU - Choi, H. J.

AU - Lee, S. W.

AU - Park, J. S.

AU - Bae, D. H.

PY - 2008/11

Y1 - 2008/11

N2 - The deformation behavior of bulk nanocrystalline aluminum down to 48 nm in grain size, produced by hot extrusion of ball-milled powders, has been evaluated by compression and tension tests. Isotropic yield stress increases following the Hall-Petch relationship with decreasing grain size down to 70 nm. However, a positive deviation in the relationship is found for grain sizes below 70 nm, and aluminum with a grain size of 48 nm exhibits a superior yield stress of 500 MPa with ductile failure.

AB - The deformation behavior of bulk nanocrystalline aluminum down to 48 nm in grain size, produced by hot extrusion of ball-milled powders, has been evaluated by compression and tension tests. Isotropic yield stress increases following the Hall-Petch relationship with decreasing grain size down to 70 nm. However, a positive deviation in the relationship is found for grain sizes below 70 nm, and aluminum with a grain size of 48 nm exhibits a superior yield stress of 500 MPa with ductile failure.

UR - http://www.scopus.com/inward/record.url?scp=51349150593&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=51349150593&partnerID=8YFLogxK

U2 - 10.1016/j.scriptamat.2008.07.030

DO - 10.1016/j.scriptamat.2008.07.030

M3 - Article

AN - SCOPUS:51349150593

VL - 59

SP - 1123

EP - 1126

JO - Scripta Materialia

JF - Scripta Materialia

SN - 1359-6462

IS - 10

ER -

Tensile behavior of bulk nanocrystalline aluminum synthesized by hot extrusion of ball-milled powders

Abstract

All Science Journal Classification (ASJC) codes

Access to Document

Other files and links

Fingerprint

Cite this