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Papers by Author: J.X. Zou

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Microstructure, Texture and Residual Stresses Induced by Surface Thermo-Mechanical Treatments

Authors: Thierry Grosdidier, Bernard Bolle, J.D. Puerta Velásquez, J.X. Zou, Jean-Jacques Fundenberger, Nathalie Allain-Bonasso, P. Chevrier, Albert Tidu

Abstract: This paper reviews some recent results concerning surface integrity of materials processed with two important developing techniques: high speed machining (HSM) – here applied to the difficult case of Ti alloys – and low energy high current pulsed electron beam (LEHCPEB) surface treatment of steels. The effect of the processing parameters on the development of microstructure, texture and residual stresses is detailed for modifications occurring both at the surfaces and sub-surfaces.

Analysis of Metals Surface Structure Modifications Induced by High Current Pulsed Electron Beam (HCPEB) under the “Heating” and “Melting” Modes

Authors: Thierry Grosdidier, J.X. Zou, Jiang Wu, X.D. Zhang, K.M. Zhang, Ai Min Wu, Sheng Zhi Hao, Chuang Dong

Abstract: High current pulsed electron beam (HCPEB) is a fairly new technique for surface modifications, including hardening, alloying and formation of metastable phases. The present contribution gives some new insights on the microstructure modifications encountered at the top surface of HCPEB treated metals. In particular, the potential of the technique for structure modifications associated with the use of the pulsed electron beam under “heating” and “melting” conditions are highlighted.