Abstract
Using TEM and optical metallography analysis, a 18Cr-10Ni 12Kh18N10T austenitic steel has been investigated. It was established that after ultrasound treatment of steel a liquation heterogeneity decreasing and dynamic recrystallization in surface layers took place. An average size of grains and number of twinned grain boundaries decrease in this case. A general type grain boundaries are predominate in grain boundary ensemble. Polymorph transformation with formation of ε-martensite crystals occurs in austenitic grains with the size of 3 μm or more. Carbide phase precipitations size, especially Cr23C6, is decreased. Amplitude of curvature-torsion of austenitic crystalline lattice and value of scalar dislocation density are increased. As a result. microhardness of steel surface layers is increased.
| Original language | English |
|---|---|
| Pages (from-to) | 90-97 |
| Number of pages | 8 |
| Journal | Fizika i Khimiya Obrabotki Materialov |
| Issue number | 1 |
| Publication status | Published - 2001 |
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ASJC Scopus subject areas
- Materials Science(all)
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Structure, phase composition and strengthening mechanism of austenitic steel exposed to ultrasonic treatment by pins. / Klimenov, V. A.; Ivanov, Yu F.; Perevalova, O. B.; Torgunakov, Yu B.; Skugarev, A. I.; Andriets, S. P.
In: Fizika i Khimiya Obrabotki Materialov, No. 1, 2001, p. 90-97.Research output: Contribution to journal › Article
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TY - JOUR
T1 - Structure, phase composition and strengthening mechanism of austenitic steel exposed to ultrasonic treatment by pins
AU - Klimenov, V. A.
AU - Ivanov, Yu F.
AU - Perevalova, O. B.
AU - Torgunakov, Yu B.
AU - Skugarev, A. I.
AU - Andriets, S. P.
PY - 2001
Y1 - 2001
N2 - Using TEM and optical metallography analysis, a 18Cr-10Ni 12Kh18N10T austenitic steel has been investigated. It was established that after ultrasound treatment of steel a liquation heterogeneity decreasing and dynamic recrystallization in surface layers took place. An average size of grains and number of twinned grain boundaries decrease in this case. A general type grain boundaries are predominate in grain boundary ensemble. Polymorph transformation with formation of ε-martensite crystals occurs in austenitic grains with the size of 3 μm or more. Carbide phase precipitations size, especially Cr23C6, is decreased. Amplitude of curvature-torsion of austenitic crystalline lattice and value of scalar dislocation density are increased. As a result. microhardness of steel surface layers is increased.
AB - Using TEM and optical metallography analysis, a 18Cr-10Ni 12Kh18N10T austenitic steel has been investigated. It was established that after ultrasound treatment of steel a liquation heterogeneity decreasing and dynamic recrystallization in surface layers took place. An average size of grains and number of twinned grain boundaries decrease in this case. A general type grain boundaries are predominate in grain boundary ensemble. Polymorph transformation with formation of ε-martensite crystals occurs in austenitic grains with the size of 3 μm or more. Carbide phase precipitations size, especially Cr23C6, is decreased. Amplitude of curvature-torsion of austenitic crystalline lattice and value of scalar dislocation density are increased. As a result. microhardness of steel surface layers is increased.
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M3 - Article
SP - 90
EP - 97
JO - Fizika i Khimiya Obrabotki Materialov
JF - Fizika i Khimiya Obrabotki Materialov
SN - 0015-3214
IS - 1
ER -