Characteristic features of the α→γ transformation and the mechanical properties of steel N27Yu2T2B

1.The presence in martensite of ?' particles precipitated during aging of austenite affects the size, distribution, and orientation of austenite sections formed in the process of the a?? transformation.2.The change in the a?? transformation mechanism due to the presence of ?' particles leads to an increase of the strength and retention of high strength in a broad range of temperatures at which martensite is aged.