激光增材制造铝锂合金的热处理组织及TB相析出

Shikun Jiao; Shaoyin Liu; Dong Liu; Xu Cheng

doi:10.3788/CJL201845.0502001

激光增材制造铝锂合金的热处理组织及T_B相析出

Shikun Jiao
, Shaoyin Liu
, Dong Liu
, Xu Cheng^*

^*此作品的通讯作者

材料科学与工程学院

Beihang University
Research and Application Center of Laser Additive Manufacturing for National Defense Industries
Key Laboratory of Precision Opto-Mechatronics Technology (Ministry of Education)
Beijing Engineering Technological Research Center on Laser Direct Manufacturing for Large Critical Metallic Components

科研成果: 期刊稿件 › 文章 › 同行评审

5 引用（Scopus）

摘要

The Al-Li alloys are fabricated by the laser additive manufacturing technique, and the microstructures of the as-deposited Al-Li alloys are analyzed. The processing parameters for double-stage homogenization annealing and solution heat treatment are optimized, and the T_B phase precipitation behavior is explored. The results show that, after the double-stage homogenization annealing and solution heat treatment, the amount of copper-rich phase with a low melting point precipitated on the grain boundary and within grains is reduced, and thus the uniformity of Al-Li alloy compositions is improved. The amount of the precipitated T_B phase reaches the maximum at an aging temperature of 400℃, and with the further increment of the aging temperature, the amount of T_B phase gradually decreases. In addition, the micro-hardness decreases first and then increases with the increase of the aging temperature.

投稿的翻译标题	Heat Treatment Microstructures and T_B Phase Precipitation of Laser Additive Manufactured Al-Li Alloys
源语言	繁体中文
文章编号	0502001
期刊	Zhongguo Jiguang/Chinese Journal of Lasers
卷	45
期	5
DOI	https://doi.org/10.3788/CJL201845.0502001
出版状态	已出版 - 10 5月 2018

关键词

Aluminum-lithium alloy
Heat treatment
Laser additive manufacturing
Laser technique
Micro-hardness
T phase

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10.3788/CJL201845.0502001

其它文件与链接

链接到 Scopus 的出版物

引用此

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title = "激光增材制造铝锂合金的热处理组织及TB相析出",

abstract = "The Al-Li alloys are fabricated by the laser additive manufacturing technique, and the microstructures of the as-deposited Al-Li alloys are analyzed. The processing parameters for double-stage homogenization annealing and solution heat treatment are optimized, and the TB phase precipitation behavior is explored. The results show that, after the double-stage homogenization annealing and solution heat treatment, the amount of copper-rich phase with a low melting point precipitated on the grain boundary and within grains is reduced, and thus the uniformity of Al-Li alloy compositions is improved. The amount of the precipitated TB phase reaches the maximum at an aging temperature of 400℃, and with the further increment of the aging temperature, the amount of TB phase gradually decreases. In addition, the micro-hardness decreases first and then increases with the increase of the aging temperature.",

keywords = "Aluminum-lithium alloy, Heat treatment, Laser additive manufacturing, Laser technique, Micro-hardness, T phase",

author = "Shikun Jiao and Shaoyin Liu and Dong Liu and Xu Cheng",

year = "2018",

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doi = "10.3788/CJL201845.0502001",

language = "繁体中文",

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publisher = "Chinese Laser Press",

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T1 - 激光增材制造铝锂合金的热处理组织及TB相析出

AU - Jiao, Shikun

AU - Liu, Shaoyin

AU - Liu, Dong

AU - Cheng, Xu

PY - 2018/5/10

Y1 - 2018/5/10

N2 - The Al-Li alloys are fabricated by the laser additive manufacturing technique, and the microstructures of the as-deposited Al-Li alloys are analyzed. The processing parameters for double-stage homogenization annealing and solution heat treatment are optimized, and the TB phase precipitation behavior is explored. The results show that, after the double-stage homogenization annealing and solution heat treatment, the amount of copper-rich phase with a low melting point precipitated on the grain boundary and within grains is reduced, and thus the uniformity of Al-Li alloy compositions is improved. The amount of the precipitated TB phase reaches the maximum at an aging temperature of 400℃, and with the further increment of the aging temperature, the amount of TB phase gradually decreases. In addition, the micro-hardness decreases first and then increases with the increase of the aging temperature.

AB - The Al-Li alloys are fabricated by the laser additive manufacturing technique, and the microstructures of the as-deposited Al-Li alloys are analyzed. The processing parameters for double-stage homogenization annealing and solution heat treatment are optimized, and the TB phase precipitation behavior is explored. The results show that, after the double-stage homogenization annealing and solution heat treatment, the amount of copper-rich phase with a low melting point precipitated on the grain boundary and within grains is reduced, and thus the uniformity of Al-Li alloy compositions is improved. The amount of the precipitated TB phase reaches the maximum at an aging temperature of 400℃, and with the further increment of the aging temperature, the amount of TB phase gradually decreases. In addition, the micro-hardness decreases first and then increases with the increase of the aging temperature.

KW - Aluminum-lithium alloy

KW - Heat treatment

KW - Laser additive manufacturing

KW - Laser technique

KW - Micro-hardness

KW - T phase

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U2 - 10.3788/CJL201845.0502001

DO - 10.3788/CJL201845.0502001

M3 - 文章

AN - SCOPUS:85051824079

SN - 0258-7025

VL - 45

JO - Zhongguo Jiguang/Chinese Journal of Lasers

JF - Zhongguo Jiguang/Chinese Journal of Lasers

IS - 5

M1 - 0502001

ER -

激光增材制造铝锂合金的热处理组织及TB相析出

摘要

关键词

访问文件

其它文件与链接

指纹

引用此

激光增材制造铝锂合金的热处理组织及T_B相析出