文章信息/Info

Title:

Research and Development of Laser Cladding of Magnesium Alloy

作者:

姜力鵬; 鄧兆雪; 張宇慧; 張勝寶; 李響

1.中國航發哈爾濱東安發動機有限公司，黑龍江 哈爾濱 150001 2.哈爾濱理工大學建筑工程學院，黑龍江 哈爾濱 150001 3.西北有色金屬研究院先進材料研究所，陜西 西安 710016

Author(s):

JIANG Lipeng;  DENG Zhaoxue;  ZHANG Yuhui;  ZHANG Shengbao;  LI Xiang

1. AECC Harbin Dong An Engine Co., Ltd., Harbin 150001, China 2. School of Architecture and Engineering, Harbin University of Science and Technology, Harbin 150001, China 3. Advanced Materials Research Central, Northwest Institute for Nonferrous Metal Research, Xi’an 710016, China

關鍵詞:

激光熔覆; 鎂合金; 材料體系; 工藝參數; 發展趨勢

Keywords:

laser cladding;  magnesium alloys;  material systems;  process parameters; development tendency

分類號:

TG174.4；TG146.22

文獻標志碼:

A

摘要:

鎂合金是最有前途的輕質結構材料之一，但較差的耐蝕性和耐磨性限制了其在工業領域的進一步應用。激光熔覆作為一種表面改性技術，以其獨特的高效性，涂層與基體間可形成冶金結合等優點，可有效地提升鎂合金表面性能。但鎂合金的低熔點特性使得激光工藝參數和材料選擇對鎂合金表面性能的改善至關重要。為此，詳細討論了激光熔覆工藝參數（激光功率、掃描速度和波長）對熔覆后涂層組織和性能的影響，同時對目前鎂合金表面激光熔覆的主要材料體系進行總結；綜述了鎂合金表面激光熔覆技術的發展和現狀，提出了鎂合金表面激光熔覆所遇到的主要問題；對今后鎂合金表面激光熔覆研究的發展方向進行展望。

Abstract:

Magnesium alloys are one of the most promising lightweight structural materials. Nevertheless, the poor corrosion and wear resistance of magnesium alloys restrict their applications. As a surface modification technology, laser cladding can effectively improve the surface properties of magnesium alloys because of its unique high efficiency and metallurgical combination of coating and substrate. Due to the characteristics of magnesium alloy, laser processing parameters and material selection are of vital importance to improve the surface properties of magnesium alloys. The influence of laser cladding process parameters (laser power, scanning speed and wavelength) is discussed in detail, and the main material systems for laser cladding of magnesium alloys are summarized. In addition, the development and status of laser cladding of magnesium alloys are discussed, and the main problems of laser cladding of magnesium alloys are put forward. The future development of laser cladding of magnesium alloys is predicated.