重囗另类BBWSeⅹHD,av狼论坛,精品一卡2卡三卡4卡乱码理论,体育生gv老师浪小辉3p警察

Effects of RRA Treatments on Microst

時間:2023-04-27 20:58:17 航空航天論文 我要投稿
  • 相關推薦

Effects of RRA Treatments on Microstructures and Properties of a New High-strength Aluminum-Lithium Alloy-2A97

A new high strength 2A97 Al-Cu-Li-X alloy was subjected to triple-aging of retrogression and re-aging treatments (RRA). Transmission electron microscopy (TEM), differential scanning calorimetry (DSC), and tensile tests were used to investigate the effects of RRA treatment on the microstructures and properties. DSC test reveals the reversion temperature range of the strengthening δ' (Al3Li)phase. The results show that the microstructure consists of δ' (Al3Li) phase, T1 (Al2CuLi) phase and θ"/θ'(Al2Cu) phase for 2A97 alloy treated by a triple-aging ora retrogression and re-aging treatment in the following order: (1) at 165 ℃×30 min, (2) at 220 ℃ or 240 ℃×15 min, (3) at 165 ℃×24 h. The plastic deformation, incorporated into the treatment after secondary high temperature aging, promotes the T1 precipitation during final re-aging. The tensile properties of the alloy treated by the retrogression and re-aging treatment reach the peak level of alloy single-aged at 165 ℃ in T6 temper.

作 者: YUAN Zhi-shan LU Zheng XIE You-hua DAI Sheng-long LIU Chang-sheng   作者單位: YUAN Zhi-shan,LIU Chang-sheng(School of Materials & Metallurgy, Northeastern University, Shenyang 110004, China)

LU Zheng,XIE You-hua,DAI Sheng-long(Beijing Institute of Aeronautical Materials, Beijing 100095, China) 

刊 名: 中國航空學報(英文版)  ISTIC 英文刊名: CHINESE JOURNAL OF AERONAUTICS  年,卷(期): 2007 20(2)  分類號: V2  關鍵詞: 2A97   Al-Cu-Li-X alloy   RRA treatments   triple aging   microstructure   reversion  

【Effects of RRA Treatments on Microst】相關文章:

Cause and Effects of Iron Deficiencies05-04

Variations in seed germination of Hippophae salicifolia with different presoaking treatments04-26

Effects of Formaldehyde Inhalation on Lung of Rats04-27

Environmental Effects on Microstructural Stability of SiC/SiC Composites04-26

Evaluation of dust activity and climate effects in North China04-26

Effects of sleep deprivation on gamma oscillation of waking human EEG04-26

EFFECTS OF ENSO ON THE RELATIONSHIP BETWEEN IOD AND SUMMER RAINFALL IN CHINA04-27

Effects of nutrients on Microcystis growth more easily forming bloom04-25

Analysis of sextupole effects on 13 function beating in the SSRF storage ring04-27

Effects of methamidophos and glyphosate on copper sorption-desorption behavior in soils04-25

主站蜘蛛池模板: 英德市| 安乡县| 渭源县| 察雅县| 白山市| 丘北县| 曲麻莱县| 沂源县| 白银市| 广灵县| 马鞍山市| 洛宁县| 汉寿县| 夏津县| 舞阳县| 仙桃市| 新宁县| 沅陵县| 汝城县| 南通市| 蛟河市| 澎湖县| 哈密市| 天柱县| 广宁县| 扎赉特旗| 奉节县| 临桂县| 莆田市| 永济市| 崇文区| 平乐县| 凉城县| 师宗县| 泌阳县| 盖州市| 囊谦县| 南陵县| 图木舒克市| 锦州市| 阳朔县|