文章信息/Info

Title:

Research Status and Prospect of Sc Microalloying Aluminum Alloys

作者:

周民1; 甘培原1; 鄧鴻華1; 詹海鴻1; 劉晨1; 曾建民2

（1.廣西冶金研究院有限公司，廣西 南寧 530023）
(2.廣西大學材料科學與工程學院，廣西 南寧 530004）

Author(s):

ZHOU Min1;  GAN Peiyuan1;  DENG Honghua1;  ZHAN Haihong1;  LIU Chen1;  ZENG Jianmin2

1.Guangxi Research Institute of Metallurgy Corporation Limited, Nanning 530023, China

2.College of Materials Science and Engineering, Guangxi University, Nanning 530004,China

關鍵詞:

鈧; 微合金化; 鋁合金; Al3Sc; 性能提升

Keywords:

Key words：Sc;  microalloying;  aluminum alloy;  Al3Sc;  properties improvement

DOI:

10.7502/j.issn.1674-3962.2018.02.11

文獻標志碼:

A

摘要:

含鈧微合金化鋁合金是一類新型鋁合金材料。鈧被認為是目前鋁合金最好的合金強化元素，鈧加入鋁合金中，形成Al3Sc顆粒，產生強烈的微合金化作用，可全面提高鋁合金的性能，含鈧鋁合金被認為是新一代航空航天、艦船、兵器等用高性能合金材料。對鈧在鋁合金中所表現出來的物理冶金行為及作用做了綜述與分析，如明顯地細化晶粒、強烈地沉淀強化及抑制再結晶等。介紹了鈧元素全面提升鋁合金綜合力學性能，如耐腐蝕性能、焊接性能等方面的效果。結合國內外含鈧微合金化鋁合金的研究進展與成果，探討了國內該領域的研究方向與發展趨勢。

Abstract:

Scandium microalloying aluminum alloy is a kind of new material. Scandium is considered to be the best alloy strengthening element for aluminum alloys at present. The addition of scandium to aluminum alloy forms Al3Sc particles and produces a strong microalloying effect, which can improve the properties of aluminum alloy in an all-round way. Scandium microalloying aluminum alloy is considered to be a high performance alloy material for the new generation of aerospace, ship, weapons and so on .The physical metallurgical behaviors and performances were summarized in this paper, such as obviously grain refining, intensively precipitation strengthening, recrystallization inhibiting and so forth. The improvements of Sc on the properties of Al alloys, such as comprehensive mechanical properties, corrosion resistance, weldability and so on, were introduced. Based on the international and domestic researches, the paper discussed the development trends in this field.