Phase transformations of Ni-15 wt.% B powders during mechanical alloying and annealing |
| |
Authors: | Masoud Nazarian-Samani Ali Reza Kamali Roohallah Mobarra Mahboobeh Nazarian-Samani |
| |
Affiliation: | Advanced Materials Research Center, Department of Materials Science and Engineering, Malek Ashtar University of Technology, Shahin Shahr, Isfahan, Iran |
| |
Abstract: | The formation of Ni-B binary intermetallic compounds was investigated by mechanical alloying (MA) of the Ni-15 wt.% B (≈ Ni-48 at.% B) powder mixture and subsequent heat treatment. It was found that an interstitial Ni(B) solid solution was formed at the early stage of milling, followed by the formation of Ni3B intermetallic compound after 25 h of milling. On further milling, the Ni3B transformed to Ni2B and o-Ni4B3 (orthorhombic). Phase transformation during heating of Ni(B) solid solution phase up to 800 °C could be represented by Ni(B) → Ni3B → Ni2B. Other intermetallics can be formed by heat treatment of Ni(B) solid solution at temperatures above 800 °C. |
| |
Keywords: | Intermetallic compounds Powder technology Heat treatment Nanostructured materials X-ray diffraction |
本文献已被 ScienceDirect 等数据库收录! |