The optimum austenite stability during quenching was achieved in the case of processed microstructure holding finer grain size, and higher dislocation density. These provided fast track diffusion for austenite stabilizer elements, which decreased the thermally activated martensite starting temperature and ...
Noun1.austenite- a solid solution of ferric carbide or carbon in iron; cools to form pearlite or martensite gamma iron- a nonmagnetic allotrope of iron that is the basis of austenite; stable between 906 and 1403 degrees centigrade austenitic steel- steel that has enough nickel and chromium or...
The concentration of Mn in the austenite far from interface was slightly less than 9 at.%. Within the ferritic matrix the concentration of Mn was approximately 5 at. % which is close to the nominal composition of the alloy. Also, other elements show a significant partitioning between the ...
The optimum austenite stability during quenching was achieved in the case of processed microstructure holding finer grain size, and higher dislocation density. These provided fast track diffusion for austenite stabilizer elements, which decreased the thermally activated martensite starting temperature and ...
There has been little research concerning the effect of aluminium as a substitutional element in steel in amounts higher than 0.1 wt% despite a general awareness that Al is a ferrite stabilizer and tends to expand the ferrite+austenite phase field of the equilibrium phase diagram. This could be...
A direct influence of dislocations piling-up and an indirect role of martensite as a pile-up stabilizer is postulated. In the potentiostatic regime, cold work is shown to lower the repassivation ability and to increase the number of stable pits. Then, addition of alloying elements (such as ...
The medium-Mn (5% ≤ Mn ≤ 12%) and high-Mn (Mn > 12%) lightweight steels are characterized by single austenite and austenite-based duplex (austenite + ferrite) matrix due to their high content of austenite stabilizer elements of Mn and C [129]. When the content of ferrite stabilizer ...
the QIT600 steel displays block-like and strip-like retained austenite, which is high in solute elements. The retained austenite is formed during intercritical tempering and contains a significant amount of solute enrichment. In contrast, the microstructure of QIT630 steel mainly consists of tempered...
reveal that there is a strong tendency for the <111> planes of the ferrite to align in the steel sheets. This ferritic texture may be inherited from the cold-rolled martensite, which was subsequently subjected to IA [22]. The overall volume fraction and grain size of austenite in the 0Cu...
These properties result from the addition of a number of elements featuring Mn. Mn, an austenite stabilizer, triggers an extensive TRIP effect by enhancing the austenite volume fraction, which in turn increases steel strength and ductility. Meanwhile, other Metals 2018, 8, 615; doi:10.3390/met...