Annealed high-phosphorus electroless Ni-P coatings for producing molds for precision glass molding

被引：21
|
作者：
Yu, Qian [1 ]
Zhou, Tianfeng [1 ,2 ]
He, Yupeng [1 ]
Liu, Peng [1 ,2 ]
Wang, Xibin [1 ,2 ]
Jiang, Yonggang [3 ]
Yan, Jiwang [4 ]
机构：
[1] Beijing Inst Technol, Key Lab Fundamental Sci Adv Machining, Beijing 100081, Peoples R China
[2] Beijing Inst Technol, Chongqing Innovat Ctr, Chongqing 401120, Peoples R China
[3] Beihang Univ, Sch Mech Engn & Automat, Beijing 100191, Peoples R China
[4] Keio Univ, Fac Sci & Technol, Dept Mech Engn, Yokohama, Kanagawa 2238522, Japan
来源：
MATERIALS CHEMISTRY AND PHYSICS | 2021年 / 262卷
基金：
中国国家自然科学基金;
关键词：
Nickel-phosphorus coating; Heat treatment; Phase transformation; Forming accuracy; Precision glass molding;
D O I：
10.1016/j.matchemphys.2021.124297
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
An annealed high-phosphorus electroless Ni-P coating was developed as the mold material for precision glass molding. The coating with a phosphorus content of 11.6 wt% was prepared on heat-resistant stainless steel via an intermittent ultrasonic-assisted electroless plating method. The effects of annealing temperature and heating rate on phase transformation, grain size variation, and mechanical properties were investigated. An annealing temperature of 600 degrees C with a heating rate of 5 degrees C/min was determined to be the optimal choice for heat treatment. Microgrooves were machined on the coating surface. After heat treatment, the increased hardness and modulus helped the microgrooves on the coating resist thermal deformation during the PGM process. The PV value decreased from 0.58 to 0.32 mu m, and the surface roughness decreased from Sa 104.5 to Sa 62.6 nm. The mold produced by heat-treated coating was beneficial for improving the forming accuracy of precision glass molding.
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页数：8
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