INITIAL DEPOSITION MECHANISM OF ELECTROLESS NICKEL PLATING ON AZ91D MAGNESIUM ALLOYS

2006 ◽  
Vol 45 (2) ◽  
pp. 215-222 ◽  
Author(s):  
Y. SONG ◽  
D. SHAN ◽  
E. HAN
Keyword(s):  
Magnesium Alloys ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Deposition Mechanism ◽  
Initial Deposition

Initial Deposition Mechanism of Electroless Nickel Plating on Magnesium Alloys

2001 ◽  
Vol 79 (1) ◽  
pp. 30-32 ◽  
Author(s):  
Yanghui Xiang ◽  
Wenbin Hu ◽  
Xinkuan Liu ◽  
Changzheng Zhao ◽  
Wenjiang Ding
Keyword(s):  
Magnesium Alloys ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Deposition Mechanism ◽  
Initial Deposition

Deposition Mechanism Study of a Novel Electroless Nickel Plating Technique on AZ91D Magnesium Alloy

2011 ◽  
Vol 393-395 ◽  
pp. 40-43
Author(s):  
Jian Gang Qian ◽  
Tian Zhao
Keyword(s):  
Magnesium Alloy ◽  
Electroless Nickel ◽  
Nickel Layer ◽  
High Catalytic Activity ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Mechanism Study ◽  
Deposition Mechanism ◽  
Az91d Magnesium Alloy ◽  
Initial Deposition

A novel direct electroless nickel plating method was developed for the AZ91D magnesium alloy. The electroless nickel initial deposition morphology was analyzed by scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS). The initial deposition characteristics of the coating and the deposition mechanism of the nickel layer are discussed. The results show that after activation, an uneven scaly-activated membrane was formed on the AZ91D magnesium alloy surface. The weakest part of the activated membrane dissolved first, where small Ni particles deposited initially. These deposited Ni particles had high catalytic activity and they were involved in the catalytic reduction reaction of hypophosphite, from which P was precipitated. As the plating proceeded, the number of the deposited Ni particles gradually increased in a three-dimensional manner and the surface was gradually covered by the growing cellular particles. A compact pore-free nickel-plated film was finally formed.

Deposition mechanism of electroless nickel plating of composite coatings on magnesium alloy

2019 ◽  
Vol 207 ◽  
pp. 1299-1308 ◽  
Author(s):  
Wei Shang ◽  
Xiaoqiang Zhan ◽  
Yuqing Wen ◽  
Yuqing Li ◽  
Zhe Zhang ◽  
...  
Keyword(s):  
Magnesium Alloy ◽  
Composite Coatings ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Deposition Mechanism

scholarly journals Relationship between Pretreatment and Initial Deposition in Electroless Nickel Plating on Aluminum Substrate.

1994 ◽  
Vol 45 (7) ◽  
pp. 720-725 ◽  
Author(s):  
Katsuhiko TASHIRO ◽  
Kunio CHIBA ◽  
Yutaka FUKUDA ◽  
Hidehiro NAKAO ◽  
Hideo HONMA
Keyword(s):  
Electroless Nickel ◽  
Aluminum Substrate ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Initial Deposition

Study on the process of electroless nickel plating on magnesium alloys

2005 ◽  
Vol 83 (2) ◽  
pp. 91-94 ◽  
Author(s):  
Y. Wu ◽  
Y. Xiang ◽  
W. Hu ◽  
C. Zhao ◽  
W. Ding
Keyword(s):  
Magnesium Alloys ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating

Synergistic Fluoropolymer Coating on Magnesium Alloys

2005 ◽  
Vol 488-489 ◽  
pp. 673-676 ◽  
Author(s):  
Hong Qing Zou ◽  
Ji Cheng Lu ◽  
Jin Zhang ◽  
Hou Chang Wu ◽  
Min Fang
Keyword(s):  
Magnesium Alloys ◽  
Coefficient Of Friction ◽  
Salt Spray ◽  
Electroless Nickel ◽  
Neutral Salt ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Long Duration ◽  
Fluoropolymer Coating ◽  
Dynamic Coefficient Of Friction

The synergistic fluoropolymer self-lubrication coatings on magnesium alloys were studied. Magnesium alloy was firstly treated by electroless nickel plating. Then micropores of electroless nickel plating layer was enlarged. Then the fluoropolymer particles were infused into micropores, precise vacuum heat treatment ensured thorough infusion with fluoropolymer, finally the synergistic coating was formed. The hardness of the coating reached 600HV, the dynamic coefficient of friction of the coating was less than 0.15, and the low coefficient of friction could be kept during a long duration wear to realize the permanent dry lubrication. The corrosion resistance was also excellent to endure 5% neutral salt spray test for 500 hours. Also the structure and composition of the coating were observed and studied.

Effects of multiple ligand coordinations on electroless nickel plating on magnesium alloys

2008 ◽  
Vol 24 (4) ◽  
pp. 295-300 ◽  
Author(s):  
X. L. Gao ◽  
G. Yu ◽  
Y. J. Ouyang ◽  
J. L. Chen ◽  
X. P. Lei ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Multiple Ligand

Observation of initial deposition process of electroless nickel plating by quartz crystal microbalance method and microscopy

2002 ◽  
Vol 47 (25) ◽  
pp. 4011-4018 ◽  
Author(s):  
Hiroshi Matsubara ◽  
Takehide Yonekawa ◽  
Yoshihiro Ishino ◽  
Hiroshi Nishiyama ◽  
Nobuo Saito ◽  
...  
Keyword(s):  
Quartz Crystal Microbalance ◽  
Quartz Crystal ◽  
Electroless Nickel ◽  
Deposition Process ◽  
Electroless Nickel Plating ◽  
Nickel Plating ◽  
Initial Deposition

Effects of pretreatments of magnesium alloys on direct electroless nickel plating

2012 ◽  
Vol 90 (4) ◽  
pp. 209-214 ◽  
Author(s):  
T N Tran ◽  
G Yu ◽  
B N Hu ◽  
Z H Xie ◽  
R Tang ◽  
...  
Keyword(s):  
Magnesium Alloys ◽  
Electroless Nickel ◽  
Electroless Nickel Plating ◽  
Nickel Plating
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