文章信息/Info

Title:

Development of 7XXX Series Aluminum Alloy with High Strength High Toughness and Low Quench Sensitivity

作者:

熊柏青; 李錫武; 張永安; 李志輝; 王鋒; 劉紅偉

北京有色金屬研究總院 有色金屬材料制備加工國家重點實驗室，北京 100088

Author(s):

XIONG Baiqing;  LI Xiwu;  ZHANG Yongan;  LI Zhihui;  WANG Feng;  LIU Hongwei

State Key Laboratory of Nonferrous Metals and Processes, General Research Institute for

Nonferrous Metals, Beijing 100088, China

關鍵詞:

7XXX系鋁合金; 高強高韌; 低淬火敏感性

DOI:

10.7502/j.issn.1674-3962.2014.02.07

文獻標志碼:

A

摘要:

高強韌低淬火敏感性7XXX系鋁合金，是滿足航空工業當前及未來發展對厚截面整體式結構件制造緊迫需求的必然選擇，是當前世界各國在航空鋁合金材料研發方面的熱點和重點。近年來，美歐等發達國家開創了以7085合金為代表的新一代高強韌低淬火敏感性7XXX鋁合金材料體系；我國也成功開發出了一種具有完全自主知識產權、綜合性能優異的高強韌低淬火敏感性鋁合金材料。詳細介紹了國內外高強韌低淬火敏感性7XXX系鋁合金的特征、發展歷史和現狀，并總結了其未來發展方向。在厚截面鋁合金材料的設計和生產過程中，通過成分優化設計和組織控制以最大可能地降低合金的淬火敏感性，是發展新一代高強韌低淬火敏感性鋁合金材料的必由之路。

Abstract:

High strength high toughness 7XXX series aluminum alloy with low quench sensitivity is the inevitably choice of thick section monolithic structural component to meet the current and future development of aviation industry, and is also the focus of current aerospace aluminum alloy research and development all over the world. This paper introduced the characteristic, development history and present situation of domestic and foreign the aluminum alloy, and summarized its development direction in the future. In recent years, Europe and the United States and other developed countries created a new generation of high strength high toughness and low quench sensitivity 7XXX series aluminum alloy material system represented by 7085 alloy; In our country, a high strength high toughness and low quenching sensitivity aluminum alloy material was also successfully developed, which had completely independent intellectual property rights and excellent comprehensive performance. In the design and production process of the thick section aluminum alloy material, to reduce the quench sensitivity of the alloy as far as possible through the composition optimization design and microstructure control, is the development trend of a new generation of high strength high toughness aluminum alloy material with low quench sensitivity.