Details
| Original language | English |
|---|---|
| Article number | 2000299 |
| Journal | Steel research international |
| Volume | 92 |
| Issue number | 1 |
| Early online date | 14 Oct 2020 |
| Publication status | Published - 5 Jan 2021 |
Abstract
The combination of a hard subsurface layer and a ductile component core is advantageous for many applications. Steels are often heat treated to create such a hardened subsurface, which is both time- and energy-consuming. It is of great advantage to create a hardened subsurface directly within the machining process, as the production line of most components includes such a process to produce the desired geometric dimensions and surface quality. To achieve a martensitic subsurface layer within the machining process, cryogenic, external turning using a metastable AISI304 austenitic steel is used herein. Herein eddy current testing and the analysis of higher harmonics are used for the detection of the ferromagnetic, martensitic phase in the parent austenite. A good correlation is found between the martensite content and the amplitude of the signals measured. Therefore, eddy current testing is considered as a suitable real-time, nondestructive testing method, which forms the basis for the generation of a tailored, deformation-induced martensitic subsurface layer during external turning.
Keywords
- deformation-induced martensites, eddy current testings, harmonic analyses, machining, metastable austenitic steels
ASJC Scopus subject areas
- Physics and Astronomy(all)
- Condensed Matter Physics
- Chemistry(all)
- Physical and Theoretical Chemistry
- Materials Science(all)
- Metals and Alloys
- Materials Science(all)
- Materials Chemistry
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In: Steel research international, Vol. 92, No. 1, 2000299, 05.01.2021.
Research output: Contribution to journal › Article › Research › peer review
}
TY - JOUR
T1 - Eddy Current Detection of the Martensitic Transformation in AISI304 Induced upon Cryogenic Cutting
AU - Fricke, Lara V.
AU - Nguyen, Hai Nam
AU - Breidenstein, Bernd
AU - Zaremba, David
AU - Maier, Hans Jürgen
N1 - Funding Information: The scientific work was supported by the DFG within the research priority program SPP 2086 (grant project no. 401800578). The authors thank the DFG for this funding and intensive technical support. In addition, the authors thanks Lia Jablonik for preparing and analyzing metallographic samples and Lorenz Gerdes for conducting the XRD measurements.
PY - 2021/1/5
Y1 - 2021/1/5
N2 - The combination of a hard subsurface layer and a ductile component core is advantageous for many applications. Steels are often heat treated to create such a hardened subsurface, which is both time- and energy-consuming. It is of great advantage to create a hardened subsurface directly within the machining process, as the production line of most components includes such a process to produce the desired geometric dimensions and surface quality. To achieve a martensitic subsurface layer within the machining process, cryogenic, external turning using a metastable AISI304 austenitic steel is used herein. Herein eddy current testing and the analysis of higher harmonics are used for the detection of the ferromagnetic, martensitic phase in the parent austenite. A good correlation is found between the martensite content and the amplitude of the signals measured. Therefore, eddy current testing is considered as a suitable real-time, nondestructive testing method, which forms the basis for the generation of a tailored, deformation-induced martensitic subsurface layer during external turning.
AB - The combination of a hard subsurface layer and a ductile component core is advantageous for many applications. Steels are often heat treated to create such a hardened subsurface, which is both time- and energy-consuming. It is of great advantage to create a hardened subsurface directly within the machining process, as the production line of most components includes such a process to produce the desired geometric dimensions and surface quality. To achieve a martensitic subsurface layer within the machining process, cryogenic, external turning using a metastable AISI304 austenitic steel is used herein. Herein eddy current testing and the analysis of higher harmonics are used for the detection of the ferromagnetic, martensitic phase in the parent austenite. A good correlation is found between the martensite content and the amplitude of the signals measured. Therefore, eddy current testing is considered as a suitable real-time, nondestructive testing method, which forms the basis for the generation of a tailored, deformation-induced martensitic subsurface layer during external turning.
KW - deformation-induced martensites
KW - eddy current testings
KW - harmonic analyses
KW - machining
KW - metastable austenitic steels
UR - http://www.scopus.com/inward/record.url?scp=85093655656&partnerID=8YFLogxK
U2 - 10.1002/srin.202000299
DO - 10.1002/srin.202000299
M3 - Article
AN - SCOPUS:85093655656
VL - 92
JO - Steel research international
JF - Steel research international
SN - 1611-3683
IS - 1
M1 - 2000299
ER -