Effect of Ni–P amorphous phases on the wear resistance of Ni–Al alloyed layer formed by pulsed laser irradiation

Excerpt

Aluminum alloys are a group of the most widely used materials in the industry due to their low specific weight, good corrosion resistance, and high thermal conductivity. However, the low hardness and low wear resistance have limited the applicability of aluminum alloys in certain cases [1‐2]. Laser alloying processes are frequently utilized to increase the wear resistance of aluminum alloys [3‐4]. Novel phases in the laser-processed zone can be formed due to rapid heating and cooling rate aroused by laser irradiation [5‐6]. In our previous research [7], Ni–P amorphous phases formed in the laser processed Al with electroless deposited Ni–P coating were reported. This article is a further report on YAG laser alloying of Ni–P electroless deposited coating with aluminum substrate. The concentration will be focused on the effects of Ni–P amorphous phases on the wear resistance of Ni–Al alloyed layer. …