Synthesis and characterization of amorphous Al–Mg–B prepared by various deposition temperatures |
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| Authors: | Wen-Chao Qu Ai-Min Wu Yi-Zhen Bai Xin Jiang |
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| Affiliation: | [1]Key Laboratory of Materials Modification by Laser, Ion andElectron Beams, Ministry of Education, Dalian Universityof Technology, Dalian 116024, China [2]School of Materials Science and Engineering, Dalian Universityof Technology, Dalian 116024, China [3]School of Physics and Optoelectronic Technology,Dalian University of Technology, Dalian 116024, China [4]Institute of Materials Engineering, University of Siegen,Paul-Bonatz-StraBe 9-11, 57076 Siegen, Germany |
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| Abstract: | Amorphous Al–Mg–B thin films were synthesized via a combinatorial sputtering approach. The properties of Al–Mg–B films with the varying deposition temperature was investigated. The deposition temperature was found to dominate the hardness of the amorphous as-deposited film. The hardness increases with increasing deposition temperature and may even exceed that of crystalline AlMgB14 material. The high hardness may be attributed to the existence of randomly distributed B12 icosahedra structure. Therefore, the thin film that was deposited on cemented carbide shows well-cutting performances in turning Ti alloy bar. At the same time, an appropriate method of pretreatment is the key to ensure the coating tool with the excellent adhesion by impact fracture test. |
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| Keywords: | Amorphous A1-Mg-B Depositiontemperature Properties Coated cutting tool |
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