Thomas Neitzert

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—This paper investigates a technique to find an optimal set of conditions for an isothermal process to extrude a product for a given shape and material properties with minimal defects. The inputs to this model are: the product geometry and its material data such as flow curve and microstructure during dynamic recrystallization. This is an inverse problem(More)
AbstrAct Mechanical alloying has recently attracted considerable attention as researchers strive to enhance nanocomposite properties and extend their utility. The process can be performed at room temperature and homogeneous nanocomposite powders can be produced. In this paper, we investigated the effect of different ball milling parameters and operating(More)
—The goal is to build up an inverse model capable of finding the average grain size history during an extrusion process and other material constants by using simulated strain and temperature values. This problem of finding the parameter values is based on linear and nonlinear least-squares regressions, coupled with microstructure control models and the(More)
Project alliancing involves the active collaboration of construction project owners and non-owner participants (designer, contractors, and suppliers) to deliver projects in an atmosphere of shared responsibilities and liabilities. Alliancing connotes integration but in real practice, it fails to create a true alliance environment since only part of the(More)
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