| 摘要 |
The invention is directed to a nodular nickel boron coating having lubricating properties. Nodular and columnar boron coatings made by the above methods disclosed in the above patents have a low coefficient of friction. The above process results in a columnar structure with nodules in the surface layer. Nodules can be produced in other nickel coatings by blasting the surface with hard particles to form the nodules. Using blasting to form the nodules produces an inferior coating in contrast to the electroless nickel boron coatings having a columnar structure. |
