17-7 PH Steel

Steel name: 17-7 PH
Diagram No.: 8179
Type of diagram: TTT
Mat. No. (Wr. Nr.) designation: 1.4568
AISI/SAE designation: AISI 631
AMS designation: AMS 5644
Chemical composition in weight %: <0.09% C, <1.00% Si, <1.00% Mn, <0.04% P, <0.04% S, 16.00-18.00% Cr, 6.50-7.75% Ni, 0.75-1.50% Al
Steel group: Duplex stainless steels
Note: Superimposed TTT and CHT diagrams for the formation of martensite in 17-7 PH stainless steel. Details of the investigation can be found in [23].
Reference: Not shown in this demo version.
Villa, M., & Somers, M. A. J. (2020). On the Role of Isothermal Martensite Formation during Cryogenic Treatment of Steels. H T M, 75(5), 263-286. https://doi.org/10.3139/105.110420
Reference [23]: Villa, M.; Somers, M. A. J.: Activation energy of time-dependent martensite formation in steel. Proc. ICOMAT 2017, 09.-14.07.17, Chicago, IL, USA, A. Stebner, G. B. Olson (eds), The Minerals, Metals & Materials Society, Springer, Cham, 2018, pp. 13–19. – ISBN: 9783319769677

Transformation Diagram


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