Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation

Seok, Moo-Young; Choi, In-Chul; Moon, Joonoh; Kim, Sungju; Ramamurty, Upadrasta; Jang, Jae-il

doi:10.1016/j.scriptamat.2014.05.004

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Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation

Seok, Moo-Young;
Choi, In-Chul;
Moon, Joonoh;
Kim, Sungju;
Ramamurty, Upadrasta;
... Jang, Jae-il

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119

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117

초록

A method to estimate the Hall-Petch coefficient k for yield strength and flow stress of steels through nanoindentation experiments is proposed. While determination of k(f) for flow stress is on the basis of grain boundary strengthening evaluated by sharp indentation, k(y) for yield strength was computed with pop-in data from spherical indentations. Good agreement between estimated and literature data, obtained from the tensile tests, validates the proposed methodology...

키워드

Steel; Hall-Petch relation; Nanoindentation; Grain boundary strengthening; TENSILE PROPERTIES; GRAIN-BOUNDARY; INDENTATION EXPERIMENTS; FERRITIC STEEL; SIZE; PLASTICITY; BEHAVIOR; MECHANISMS; RESISTANCE; HARDNESS

제목: Estimation of the Hall-Petch strengthening coefficient of steels through nanoindentation

저자: Seok, Moo-Young; Choi, In-Chul; Moon, Joonoh; Kim, Sungju; Ramamurty, Upadrasta; Jang, Jae-il

DOI: 10.1016/j.scriptamat.2014.05.004

발행일: 2014-09

유형: Article

저널명: Scripta Materialia

권: 87

페이지: 49 ~ 52