Welding Metallurgy of

The purpose of the present contribution is to review the current knowledge about the relationship between the micro-structure of cold rolled intercritically annealed low alloy TRIP-aided sheet steels and their mechanical properties from a materials engineering point of view. The focus is on their production in existing industrial lines and on their application in the manufacture of passenger cars with a body-in-white which offers an improved passive safety. The review aims to make clear that although low alloy TRIP-aided sheet steel is by now starting to be an established structural material in BIW manufacturing, there is still room for the further optimization of the composition and the processing. In addition, there are still a number of problems related to their physical metallurgy that require a better fundamental understanding.

Structure–properties relationship in TRIP steels containing carbide-free bainite

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Applied Nonparametric Statistics

Thermal stability of retained austenite in TRIP steels studied by synchrotron X-ray diffraction during cooling

Relation between microstructure and mechanical properties of a low-alloyed TRIP steel

Corrosion-induced hydrogen embrittlement in aluminum alloy 2024

The present paper focuses on the observed corrosion-induced embrittlement of alloy 2024 and tries to answer the key question on whether the observed embrittlement is attributed to hydrogen uptake and trapping in the material. Hydrogen is produced during the corrosion process and is being trapped in distinct energy states, which correspond to different microstructural sites. The formation of a hydrogen-affected zone beneath the corrosion layer is supported by fractographic analysis. Removal of the corrosion layer leads to complete restoration of yield strength but only partial restoration of ductility. Additional heat treatment to release the trapped hydrogen leads only to complete restoration of ductility. � 2005 Elsevier Ltd. All rights reserved.

Gregory N. Haidemenopoulos

Papers

Corrosion-induced hydrogen embrittlement in aluminum alloy 2024

5675 - corrosion-induced hydrogen embrittlement in aluminum alloy 2024

High entropy oxides-exploring a paradigm of promising catalysts: A review

Aluminum and Aluminum Alloys

Constitutive modeling and finite element methods for TRIP steels