The influence of Lanthanum, Cerium, Yttrium, Praseodymium and Neodymium on weld hot cracking susceptibility of the pure nickel electrode used for cold welding of cast iron was studied.

研究了纯镍铸铁焊条冷焊时，稀土金属镧、铈、镨、钇及钕对焊缝热裂纹敏感性的影响规律，并分析了铈对焊接接头力学性能和加工性能的影响。

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The wear mechanism of the nano-composite coatings were mainly fatigue wear and that of the pure nickel coating was mainly adhesion wear.

纳米复合镀层的磨损机制以疲劳磨损为主，而纯镍镀层以粘着磨损为主。

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A pure nickel coating and n-Al2O3/Ni composite coating were prepared.

制备了纯镍刷镀层和镍基纳米氧化铝复合刷镀层。

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The one- and two-euro coins release more irritating ions than a lump of pure nickel would.

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As for individual stocks, there are very few pure platinum plays, as the ore it is mined from also contains nickel and copper.

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