Effect of laser power on the microstructure of Ni-P layer deposited on aluminum substrate

摘要：

Laser processing of Ni-P layer electroless deposited on aluminum substrate was carried out by Nd-YAG pulsed laser. Different laser processing parameters were selected. When lower laser power density was employed, the modified Ni-P layer was obtained, however, when employed laser power density increased, laser alloying of Ni-P layer with aluminum substrate occurred. The characteristic dendritic or lamellar microstructures were observed in the alloyed layer. The phase constituents of the alloyed zones determined by X-ray diffraction are consisted of nickel-aluminum intermetallic compounds NiAl, Al3Ni and Al3Ni2, as well as some non-equilibrium phases, depending on the employed laser power density.

关键词： laser processing nickel-aluminum intermetallics non-equilibrium phase

作者: Yue Yang Jiandong Hu

作者单位: Key Laboratory of Advanced Structural Materials, Ministry of Education, Changchun University ofTechn The Key Lab of Automobile Materials, Ministry of Education, College of Materials Science and Enginee

会议类型: 国际会议

会议名称: 11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)

会议地点: 青岛

会议语种:英文

页码: 539-545

在线出版日期: 2010-09-25（万方平台首次上网日期，不代表论文的发表时间）