The role of local intensive heating on microstructure of 2024Al/Al18B4O33w composite deformed with strain rate >0.01 s−1

Wenchao Shi; Lin Yuan; Debin Shan

doi:10.1016/j.matchar.2019.05.004

The role of local intensive heating on microstructure of 2024Al/Al₁₈B₄O₃₃w composite deformed with strain rate >0.01 s⁻¹

Wenchao Shi^*
, Lin Yuan
, Debin Shan

^*Corresponding author for this work

Hefei University of Technology
Anhui Province Key Lab of Aerospace Structural Parts Forming Technology and Equipment
Harbin Institute of Technology

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

Abstract

The relationship among local intensive heating, activation energy and corresponding microstructures of 2024Al/Al₁₈B₄O₃₃w composite during hot deformation are studied. The results show that 2024Al/Al₁₈B₄O₃₃w composite exhibits strain rate sensitivity. The addition of Al₁₈B₄O₃₃w leads to the lower rate sensitivity exponent of 2024Al/Al₁₈B₄O₃₃w composite. The inhomogeneous deformation induces local intensive heating, resulting in rise of the related local temperature. Local temperature rise favorable to dislocation motion results in the lower calculated activation energy of 2024Al/Al₁₈B₄O₃₃w composite than that of unreinforced 2024Al. Meantime, locally intensive heating benefits the occurrence of dynamic recovery and dynamic recrystallization.

Original language	English
Pages (from-to)	115-120
Number of pages	6
Journal	Materials Characterization
Volume	153
DOIs	https://doi.org/10.1016/j.matchar.2019.05.004
State	Published - Jul 2019
Externally published	Yes

Keywords

Activation energy
Hot deformation
Local intensive heating
Metal matrix composite
Strain rate sensitivity

Access to Document

10.1016/j.matchar.2019.05.004

Cite this

@article{aca22f3eb827490ebe144c3bc3becfc4,

title = "The role of local intensive heating on microstructure of 2024Al/Al18B4O33w composite deformed with strain rate >0.01 s−1 ",

abstract = "The relationship among local intensive heating, activation energy and corresponding microstructures of 2024Al/Al18B4O33w composite during hot deformation are studied. The results show that 2024Al/Al18B4O33w composite exhibits strain rate sensitivity. The addition of Al18B4O33w leads to the lower rate sensitivity exponent of 2024Al/Al18B4O33w composite. The inhomogeneous deformation induces local intensive heating, resulting in rise of the related local temperature. Local temperature rise favorable to dislocation motion results in the lower calculated activation energy of 2024Al/Al18B4O33w composite than that of unreinforced 2024Al. Meantime, locally intensive heating benefits the occurrence of dynamic recovery and dynamic recrystallization.",

keywords = "Activation energy, Hot deformation, Local intensive heating, Metal matrix composite, Strain rate sensitivity",

author = "Wenchao Shi and Lin Yuan and Debin Shan",

note = "Publisher Copyright: {\textcopyright} 2019 Elsevier Inc.",

year = "2019",

month = jul,

doi = "10.1016/j.matchar.2019.05.004",

language = "英语",

volume = "153",

pages = "115--120",

journal = "Materials Characterization",

issn = "1044-5803",

publisher = "Elsevier Inc.",

}

TY - JOUR

T1 - The role of local intensive heating on microstructure of 2024Al/Al18B4O33w composite deformed with strain rate >0.01 s−1

AU - Shi, Wenchao

AU - Yuan, Lin

AU - Shan, Debin

PY - 2019/7

Y1 - 2019/7

N2 - The relationship among local intensive heating, activation energy and corresponding microstructures of 2024Al/Al18B4O33w composite during hot deformation are studied. The results show that 2024Al/Al18B4O33w composite exhibits strain rate sensitivity. The addition of Al18B4O33w leads to the lower rate sensitivity exponent of 2024Al/Al18B4O33w composite. The inhomogeneous deformation induces local intensive heating, resulting in rise of the related local temperature. Local temperature rise favorable to dislocation motion results in the lower calculated activation energy of 2024Al/Al18B4O33w composite than that of unreinforced 2024Al. Meantime, locally intensive heating benefits the occurrence of dynamic recovery and dynamic recrystallization.

AB - The relationship among local intensive heating, activation energy and corresponding microstructures of 2024Al/Al18B4O33w composite during hot deformation are studied. The results show that 2024Al/Al18B4O33w composite exhibits strain rate sensitivity. The addition of Al18B4O33w leads to the lower rate sensitivity exponent of 2024Al/Al18B4O33w composite. The inhomogeneous deformation induces local intensive heating, resulting in rise of the related local temperature. Local temperature rise favorable to dislocation motion results in the lower calculated activation energy of 2024Al/Al18B4O33w composite than that of unreinforced 2024Al. Meantime, locally intensive heating benefits the occurrence of dynamic recovery and dynamic recrystallization.

KW - Activation energy

KW - Hot deformation

KW - Local intensive heating

KW - Metal matrix composite

KW - Strain rate sensitivity

UR - https://www.scopus.com/pages/publications/85065198252

U2 - 10.1016/j.matchar.2019.05.004

DO - 10.1016/j.matchar.2019.05.004

M3 - 文章

AN - SCOPUS:85065198252

SN - 1044-5803

VL - 153

SP - 115

EP - 120

JO - Materials Characterization

JF - Materials Characterization

ER -

The role of local intensive heating on microstructure of 2024Al/Al₁₈B₄O₃₃w composite deformed with strain rate >0.01 s⁻¹

Abstract

Keywords

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The role of local intensive heating on microstructure of 2024Al/Al18B4O33w composite deformed with strain rate >0.01 s−1

Abstract

Keywords

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Other files and links

Fingerprint

Cite this

The role of local intensive heating on microstructure of 2024Al/Al₁₈B₄O₃₃w composite deformed with strain rate >0.01 s⁻¹