Forgeabilité des aciers inoxydables austéno-ferritiques

tel-00672279, version 1 - 21 Feb 2012
Chapter I. Introduction 19
Review of the different factors affecting the hot workability (Chapter II)
Identifying the key parameters and the parts not well-understood
Characterization of the hot cracking resistance
(ChapterIII)
Edge-cracking problem (Chapter I)
Possible remedies for edge-cracking (Chapter V) ?
Determination of the micro-scale strain distribution
(Chapter IV)
Figure I.10. Outline of the thesis. The bibliographical review permits to identify the missing pieces
of the puzzle required to understand the hot workability problem. The first missing piece is the lack
of a hot ductility test that quantifies the hot tearing resistance; as a consequence a new tool has
been developed. The second missing piece deals with the quantification of the high temperature
strain partitioning. This approach should permit to suggest some remedies for the edge-cracking
problem.