Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel
Plastic deformation and strain-induced martensite (SIM, α′) transformation in metastable austenitic AISI 304 stainless steel were investigated through room temperature tensile tests at strain rates ranging from 2 × 10−6 to 2 × 10−2/s. The amount of SIM was measured on the fractured tensile specimens...
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MDPI AG
2016-07-01
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| Series: | Metals |
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| Online Access: | http://www.mdpi.com/2075-4701/6/7/169 |
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| author | Sang Hwan Bak Muhammad Ali Abro Dong Bok Lee |
| author_facet | Sang Hwan Bak Muhammad Ali Abro Dong Bok Lee |
| author_sort | Sang Hwan Bak |
| collection | DOAJ |
| description | Plastic deformation and strain-induced martensite (SIM, α′) transformation in metastable austenitic AISI 304 stainless steel were investigated through room temperature tensile tests at strain rates ranging from 2 × 10−6 to 2 × 10−2/s. The amount of SIM was measured on the fractured tensile specimens using a feritscope and magnetic force microscope. Elongation to fracture, tensile strength, hardness, and the amount of SIM increased with decreasing the strain rate. The strain-rate dependence of RT tensile properties was observed to be related to the amount of SIM. Specifically, SIM formed during tensile tests was beneficial in increasing the elongation to fracture, hardness, and tensile strength. Hydrogen suppressed the SIM formation, leading to hydrogen softening and localized brittle fracture. |
| first_indexed | 2024-12-21T09:30:43Z |
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| id | doaj.art-a1480600d0e242dfb3e0678b382af0db |
| institution | Directory Open Access Journal |
| issn | 2075-4701 |
| language | English |
| last_indexed | 2024-12-21T09:30:43Z |
| publishDate | 2016-07-01 |
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| series | Metals |
| spelling | doaj.art-a1480600d0e242dfb3e0678b382af0db2022-12-21T19:08:46ZengMDPI AGMetals2075-47012016-07-016716910.3390/met6070169met6070169Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless SteelSang Hwan Bak0Muhammad Ali Abro1Dong Bok Lee2School of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, KoreaSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, KoreaSchool of Advanced Materials Science and Engineering, Sungkyunkwan University, Suwon 16419, KoreaPlastic deformation and strain-induced martensite (SIM, α′) transformation in metastable austenitic AISI 304 stainless steel were investigated through room temperature tensile tests at strain rates ranging from 2 × 10−6 to 2 × 10−2/s. The amount of SIM was measured on the fractured tensile specimens using a feritscope and magnetic force microscope. Elongation to fracture, tensile strength, hardness, and the amount of SIM increased with decreasing the strain rate. The strain-rate dependence of RT tensile properties was observed to be related to the amount of SIM. Specifically, SIM formed during tensile tests was beneficial in increasing the elongation to fracture, hardness, and tensile strength. Hydrogen suppressed the SIM formation, leading to hydrogen softening and localized brittle fracture.http://www.mdpi.com/2075-4701/6/7/169stainless steelhydrogen embrittlementstrain-induced martensitemagnetic force microscopy |
| spellingShingle | Sang Hwan Bak Muhammad Ali Abro Dong Bok Lee Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel Metals stainless steel hydrogen embrittlement strain-induced martensite magnetic force microscopy |
| title | Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel |
| title_full | Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel |
| title_fullStr | Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel |
| title_full_unstemmed | Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel |
| title_short | Effect of Hydrogen and Strain-Induced Martensite on Mechanical Properties of AISI 304 Stainless Steel |
| title_sort | effect of hydrogen and strain induced martensite on mechanical properties of aisi 304 stainless steel |
| topic | stainless steel hydrogen embrittlement strain-induced martensite magnetic force microscopy |
| url | http://www.mdpi.com/2075-4701/6/7/169 |
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