Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging

Rongdi Pan; Pingping Wang; Shan Jiang; Wenshu Yang; Ping Wu; Jing Qiao; Guoqin Chen; Gaohui Wu

doi:10.3390/ma16041440

Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging

Rongdi Pan
, Pingping Wang
, Shan Jiang
, Wenshu Yang^*
, Ping Wu^*
, Jing Qiao
, Guoqin Chen
, Gaohui Wu

^*Corresponding author for this work

Harbin Institute of Technology
Key Laboratory of Advanced Science and Technology on High Power Microwave
Northwest Institute of Nuclear Technology

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

4 Scopus citations

Abstract

The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals the reason why the relative dimensional change in the rolled 2024Al is one order of magnitude lower than that of the as-cast 2024Al during isothermal aging. Compared with as-cast 2024Al, the dislocation density of rolled 2024Al is higher, the lattice constant decreases less before and after aging, and the precipitates have orientation and more content, resulting in the dimensional change in rolled 2024Al being smaller than that of as-cast 2024Al. In addition, two main reasons for decreasing the dimensional change in rolled 2024Al are discussed: the decrease in lattice constant, the formation and growth of the S phase before and after aging.

Original language	English
Article number	1440
Journal	Materials
Volume	16
Issue number	4
DOIs	https://doi.org/10.3390/ma16041440
State	Published - Feb 2023
Externally published	Yes

Keywords

dimensional stability
lattice constants
precipitates
rolled 2024Al

Access to Document

10.3390/ma16041440

Cite this

@article{14c58e1135fa43d7aecfbc78630bc822,

title = "Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging",

abstract = "The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals the reason why the relative dimensional change in the rolled 2024Al is one order of magnitude lower than that of the as-cast 2024Al during isothermal aging. Compared with as-cast 2024Al, the dislocation density of rolled 2024Al is higher, the lattice constant decreases less before and after aging, and the precipitates have orientation and more content, resulting in the dimensional change in rolled 2024Al being smaller than that of as-cast 2024Al. In addition, two main reasons for decreasing the dimensional change in rolled 2024Al are discussed: the decrease in lattice constant, the formation and growth of the S phase before and after aging.",

keywords = "dimensional stability, lattice constants, precipitates, rolled 2024Al",

author = "Rongdi Pan and Pingping Wang and Shan Jiang and Wenshu Yang and Ping Wu and Jing Qiao and Guoqin Chen and Gaohui Wu",

note = "Publisher Copyright: {\textcopyright} 2023 by the authors.",

year = "2023",

month = feb,

doi = "10.3390/ma16041440",

language = "英语",

volume = "16",

journal = "Materials",

issn = "1996-1944",

publisher = "Multidisciplinary Digital Publishing Institute (MDPI)",

number = "4",

}

TY - JOUR

T1 - Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging

AU - Pan, Rongdi

AU - Wang, Pingping

AU - Jiang, Shan

AU - Yang, Wenshu

AU - Wu, Ping

AU - Qiao, Jing

AU - Chen, Guoqin

AU - Wu, Gaohui

PY - 2023/2

Y1 - 2023/2

N2 - The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals the reason why the relative dimensional change in the rolled 2024Al is one order of magnitude lower than that of the as-cast 2024Al during isothermal aging. Compared with as-cast 2024Al, the dislocation density of rolled 2024Al is higher, the lattice constant decreases less before and after aging, and the precipitates have orientation and more content, resulting in the dimensional change in rolled 2024Al being smaller than that of as-cast 2024Al. In addition, two main reasons for decreasing the dimensional change in rolled 2024Al are discussed: the decrease in lattice constant, the formation and growth of the S phase before and after aging.

AB - The change in material dimensional will lead to the decline of instrument accuracy and reliability. In this paper, the characterization and analysis of the lattice constant, precipitates, and dislocation density of the material by X-ray diffraction (XRD) and transmission electron microscopy (TEM) reveals the reason why the relative dimensional change in the rolled 2024Al is one order of magnitude lower than that of the as-cast 2024Al during isothermal aging. Compared with as-cast 2024Al, the dislocation density of rolled 2024Al is higher, the lattice constant decreases less before and after aging, and the precipitates have orientation and more content, resulting in the dimensional change in rolled 2024Al being smaller than that of as-cast 2024Al. In addition, two main reasons for decreasing the dimensional change in rolled 2024Al are discussed: the decrease in lattice constant, the formation and growth of the S phase before and after aging.

KW - dimensional stability

KW - lattice constants

KW - precipitates

KW - rolled 2024Al

UR - https://www.scopus.com/pages/publications/85149233790

U2 - 10.3390/ma16041440

DO - 10.3390/ma16041440

M3 - 文章

AN - SCOPUS:85149233790

SN - 1996-1944

VL - 16

JO - Materials

JF - Materials

IS - 4

M1 - 1440

ER -

Effect of Lattice Constants and Precipitates on the Dimensional Stability of Rolled 2024Al during Isothermal Aging

Abstract

Keywords

Access to Document

Other files and links

Fingerprint

Cite this