19 research outputs found
Developing of thin chromium-free multifunctional treatments on hot dip galvanized steel: strategy, implementation and experience
Since the use of hexavalent chromium in automotive and electronic equipment is largely prohibited, manydifferent hexavalent chromium free conversion layers have been developed. In this work, different Crfreephosphate and polycarboxylate based conversion coatings were characterized (with electron microscopyand other surface analytical methods) for the usage of a multifunctional property layer for hot dipgalvanised steel strips. The different corrosion resistance of such conversion coatings on ZM [1](ZnAlMg) and Z (Zn) will be another topic of this paper [2]. The corrosion protection properties ofthese phosphate based conversion coatings on Z and ZM were characterized in a standardized salt spray test.Finally the conversion layers and the barrier protection effect on Cr-free treated zinc and zinc magnesium wasinvestigated by cyclovoltammetry
Automated Analysis in Feature Modelling and Product Configuration
The automated analysis of feature models is one of the thriving
topics of research in the software product line and variability management
communities that has attracted more attention in the last years.
A recent literature review reported that more than 30 analysis operations
have been identi ed and di erent analysis mechanisms have been
proposed. Product con guration is a well established research eld with
more than 30 years of successful applications in di erent industrial domains.
Our hypothesis, that is not really new, is that these two independent
areas of research have interesting synergies that have not been
fully explored. To try to explore the potential synergies systematically, in
this paper we provide a rapid review to bring together these previously
disparate streams of work. We de ne a set of research questions and give
a preliminary answer to some of them. We conclude that there are many
research opportunities in the synergy of these independent areas.Ministerio de Ciencia e Innovación TIN2009- 07366Junta de Andalucía TIC-590