Quantifying the Dislocation Cell Contribution to the Yield Strength of 316L Steel

He, X.; Shang, X. K.; He, B. B.

2023-10-01

10.1007/s12540-023-01539-y

METALS AND MATERIALS INTERNATIONAL   影响因子和分区

1598-9623

2005-4149

The present work investigates the contribution of dislocation cell to the yield strength of additively manufactured (AM) 316L steel through nanoindentation technique. The nano-mechanical response of the AM sample is properly compared to the heat-treated (HT) one without dislocation cell. The nanoindentation size effect is observed in both samples. Although the nanohardness of HT sample is comparable to that of AM sample at low indentation depth, the former is obviously lower than the later at depth where the indentation impression is similar or larger than that of dislocation cell. Utilizing Nix-Gao model and Tabor equation, the contribution of dislocation cell to the yield strength is estimated to be similar to 169 MPa, which is about 54% of the improved yield strength.

Dislocation cell GND Additive manufacturing Nanoindentation

SCI ; EI

英语

第一 ; 通讯

B.B. He gratefully acknowledges the financial support from the National Natural Science Foundation of China (Grant No. U52071173) and Science and Technology Innovation Commission of Shenzhen (Project Nos. JCYJ20210324120209026; KQTD2019092917250571) and Ma[U52071173] ; National Natural Science Foundation of China["JCYJ20210324120209026","KQTD2019092917250571"] ; Science and Technology Innovation Commission of Shenzhen[2019QN01C435]

Materials Science ; Metallurgy & Metallurgical Engineering

Materials Science, Multidisciplinary ; Metallurgy & Metallurgical Engineering

WOS:001095213000007

KOREAN INST METALS MATERIALS

20234114863741

3D printing ; Additives ; Austenitic stainless steel ; Cells ; Cytology ; Nanoindentation

Biological Materials and Tissue Engineering:461.2 ; Biology:461.9 ; Steel:545.3 ; Printing Equipment:745.1.1 ; Nanotechnology:761 ; Chemical Agents and Basic Industrial Chemicals:803 ; Mechanical Variables Measurements:943.2 ; Materials Science:951

MATERIALS SCIENCE

Web of Science

Southern Univ Sci & Technol, Dept Mech & Energy Engn, Shenzhen 518055, Peoples R China

He, X.,Shang, X. K.,He, B. B.. Quantifying the Dislocation Cell Contribution to the Yield Strength of 316L Steel[J]. METALS AND MATERIALS INTERNATIONAL,2023.

He, X.,Shang, X. K.,&He, B. B..(2023).Quantifying the Dislocation Cell Contribution to the Yield Strength of 316L Steel.METALS AND MATERIALS INTERNATIONAL.

He, X.,et al."Quantifying the Dislocation Cell Contribution to the Yield Strength of 316L Steel".METALS AND MATERIALS INTERNATIONAL (2023).