Effect of Powder Particle Sizes on the Development of Ultra Hard Surface Through Superplastic Boronizing of Duplex Stainless Steel

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概要

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• In this work, a further study on boronizing using compression method called superplastic boronizing (SPB) was conducted. This process was conducted on duplex stainless steel (DSS) which has been thermo-mechanically treated to obtain fine grain microstructure and exhibit superplasticity. Effort was being put in obtaining ultra hard surface through SPB by focusing on the boron powder particle size. The microstructure, hardness, and layer thickness of the boronized materials were investigated. The formation of hard boride layers were confirmed by XRD analysis. Metallographic studies and scanning electron microscope (SEM) revealed a uniform, dense and smooth morphology of boride layer produced on all the boronized specimens. Comparison using as-received DSS with coarse microstructure also was performed. The overall results from the study showed that the SPB process can produce a very hard surface and significantly improve the surface properties of DSS.

著者

• OGIYAMA Hiroyuki

  Mechanical Engineering Department, Ehime University

• YUSOF Hanis

  Centre of Nanotechnology, Precision and Advanced Materials, Mechanical Engineering Department, University of Malaya

• JAUHARI Iswadi

  Centre of Nanotechnology, Precision and Advanced Materials, Mechanical Engineering Department, University of Malaya

• ROZALI Shaifulazuar

  Centre of Nanotechnology, Precision and Advanced Materials, Mechanical Engineering Department, University of Malaya

関連論文

• Solid State Diffusion Bonding of Superplastic Duplex Stainless Steel with Carbon Steel
• Effect of Powder Particle Sizes on the Development of Ultra Hard Surface Through Superplastic Boronizing of Duplex Stainless Steel

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