کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
5368417 | 1388395 | 2007 | 5 صفحه PDF | دانلود رایگان |
![عکس صفحه اول مقاله: Synthesis of Fe-based amorphous composite coatings with low purity materials by laser cladding Synthesis of Fe-based amorphous composite coatings with low purity materials by laser cladding](/preview/png/5368417.png)
Amorphous composite coatings Fe38Ni30âXSi16B14V2MX (XÂ =Â 0, 1, 2) (M contains Al, Ti, Mo, and C) were prepared with low purity of raw materials by laser cladding. X-ray diffraction and transmission electron microscopy results show that the coating have an amorphous structure with a few crystalline phase on it. The amorphous phase is the primary phase. The glass forming ability as well as the microhardness of the Fe-based alloy made from low purity raw materials can be much enhanced by adding small amount of multi-components. However, the elements addition has its optimal quantity. When X is equal to 1, the microstructure of the coating contains 97.93% amorphous phase and 2.07% crystalline phase on it. As a result, the microhardness of the coating reaches maximum. With further increasing of the additions, the amorphous phase in the coating lessens instead of augment and the crystalline phase begins to accumulate, which result in the decrease of the microhardness.
Journal: Applied Surface Science - Volume 253, Issue 17, 30 June 2007, Pages 7060-7064