Skip to Main content Skip to Navigation
Journal articles

Sensitivity to dynamic strain aging in C—Mn steels

Abstract : In C-Mn steels and associated welds, the dynamic strain aging (DSA) phenomenon induces an increase in the ultimate tensile strength, which is associated with a ductility drop in the 100–200 °C temperature range (which can be an index of DSA sensitivity). Moreover, in the heat-affected zone of the welds, the sensitivity to DSA, which is microstructure dependent, cannot be directly determined. Therefore, to study the effect of the microstructure on the DSA, internal friction tests combined with tensile tests were performed on various materials and microstructures (resulting from different quenching conditions), exhibiting various DSA sensitivities. For these microstructures, the intensity of DSA, evaluated by the ductility loss, is proportional to the Snœk peak height. Using the internal friction results (Snœk peak and associated cold work peak), the effect of microstructure on the DSA sensitivity can be interpreted in terms of the effect of the dislocation density on the free interstitial content in the lattice.
Complete list of metadatas

Cited literature [7 references]  Display  Hide  Download

https://hal-univ-paris10.archives-ouvertes.fr/hal-01863774
Contributor : Administrateur Hal Nanterre <>
Submitted on : Wednesday, August 29, 2018 - 9:33:27 AM
Last modification on : Wednesday, July 8, 2020 - 11:10:21 AM
Long-term archiving on: : Friday, November 30, 2018 - 12:51:34 PM

File

[A5]-1-s2.0-0925838894904650-m...
Files produced by the author(s)

Identifiers

Citation

D. Wagner, C. Prioul, D. François. Sensitivity to dynamic strain aging in C—Mn steels. Journal of Alloys and Compounds, Elsevier, 1994, 211-212, pp.132-135. ⟨10.1016/0925-8388(94)90465-0⟩. ⟨hal-01863774⟩

Share

Metrics

Record views

74

Files downloads

96