2 World Congress on Integrated Computational Materials by Mei Li, Carelyn Campbell, Katsuyo Thornton, Elizabeth A.

By Mei Li, Carelyn Campbell, Katsuyo Thornton, Elizabeth A. Holm, Peter Gumbsch

This publication represents a suite of papers awarded on the second global Congress on built-in Computational fabrics Engineering (ICME), a distinctiveness convention prepared through The Minerals, Metals & fabrics Society (TMS), and held in 2013.

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The Gibbs energies of the hep and fee phases are equal at the so called To line, which must be located between the Ms and As temperatures. Thus, the AC~"efromCalphad evaluations is closely related to the formation of E-martensite, which is the kind of martensite formed via TRIP mechanism. Below 15% Mn, amartensite forms instead of E-martensite and above 30% Mn a magnetic transition in the fee phase increases the stability of the fee phase so that the 6-martensite formation is suppressed. % C 1 Figure 3: Mechanism maps indicating the relationship between deformation mechanisms, chemical composition, temperature and SFE [5,8,9].

It becomes obvious that the smaller the coordination number the more stable is the compound, indicating the strong interaction of Mn and C. This coincides with the fact that stoichiometric manganese carbides are more stable than iron carbides indicating that the Mn-C bond is more attractive than the Fe-C bond. The mechanical properties of HMnS are characterized by their pronounced strain hardening that is significantly different from the strain hardening behavior of bcc steels. Specifically, mechanically induced twinning leads to an adaptive and continuous refinement of the microstructure during the mechanical testing.

Introduction The aluminum alloys used in many products are susceptible to localized pitting corrosion that can create very deep pits that either break through the material or create a point for mechanical stresses to induce fatigue failures. Pitting corrosion results from a breakdown in the passive oxide covering a metal. The anode inside the pit is fed by a large cathode, where the pit acidifies so that the cations are thermodynamically stable in the pit and anodic dissolution is favored. The various stages of pitting beginning with film breakdown and ending with pit death are beyond the scope of the present investigation, where the goal is to determine if there is a maximum, stable pit size for atmospheric corrosion.

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