In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys

Tan, L.; Yang, Y.

doi:10.1016/j.matlet.2015.06.018

In situ phase transformation of Laves phase from Chi-phase in Mo-containing Fe–Cr–Ni alloys

Journal Article · Sun Nov 01 00:00:00 EDT 2015 · Materials Letters

DOI:https://doi.org/10.1016/j.matlet.2015.06.018· OSTI ID:1185867

Tan, L. ^[1]; Yang, Y. ^[1]

Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States)

For an in situ phase transformation of the Chi (χ) phase to the Laves phase we observed in a Fe–Cr–Ni–Mo model alloy. The morphology, composition, and crystal structure of the χ and Laves phases, and their orientation relationship with the matrix austenite phase were investigated. The resulted Laves phase has larger lattice mismatch with the matrix phase than the χ phase, leading to the increase of local strain fields and the formation of dislocations. Moreover, this finding is helpful to understand the precipitation behavior of the intermetallic phases in the Mo-containing austenitic stainless steels.

Research Organization:: Oak Ridge National Laboratory (ORNL), Oak Ridge, TN (United States)

Sponsoring Organization:: USDOE

Grant/Contract Number:: AC05-00OR22725

OSTI ID:: 1185867

Alternate ID(s):: OSTI ID: 1358629

Journal Information:: Materials Letters, Journal Name: Materials Letters Journal Issue: C Vol. 158; ISSN 0167-577X

Publisher:: ElsevierCopyright Statement

Country of Publication:: United States

Language:: English

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Development of Intergranular Residual Stress and Its Implication to Mechanical Behaviors at Elevated Temperatures in AL6XN Austenitic Stainless Steel Hong, Yanyan; Li, Shilei; Li, Hongjia Metallurgical and Materials Transactions A, Vol. 49, Issue 8 https://doi.org/10.1007/s11661-018-4655-7	journal	May 2018
Effect of high anodic polarization on the passive layer properties of superduplex stainless steel friction stir welds at different chloride electrolyte pH values and temperatures Santa-Cruz, L. A.; Machado, G.; Vicente, A. A. International Journal of Minerals, Metallurgy, and Materials, Vol. 26, Issue 6 https://doi.org/10.1007/s12613-019-1790-0	journal	June 2019

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