Influence of solution annealing on microstructure and mechanical properties of a quenched and partitioned steel matrix composite processed by SPS

Autor: Markus Radajewski, Marco Wendler, Sabine Decker, Lutz Krüger
Rok vydání: 2021
Předmět:
Zdroj: Materials Science and Engineering: A. 799:140277
ISSN: 0921-5093
DOI: 10.1016/j.msea.2020.140277
Popis: This study examines a quenched and partitioned steel matrix composite, which was reinforced with 10 vol% Mg-PSZ and processed by Spark Plasma Sintering (SPS). The investigations focused specifically on the effect of solution annealing prior to Quenching and Partitioning (Q&P) treatment on the microstructure and the mechanical properties under compressive loading of the composite. The results revealed that the solution annealing step is necessary to form α′-martensite after quenching during the Q&P treatment, which strengthens the material. Furthermore, a substantial amount of Mg-PSZ was found to have transformed in a stress-induced manner under compressive load if a certain fraction of α′-martensite was present in the initial microstructure. However, the solution annealing slightly intensified the destabilization of the Mg-PSZ.
Databáze: OpenAIRE