Influence of Solution Treatment Duration on Microstructural Features of an Industrial Forged UNS S32750/1.4410/F53 Super Duplex Stainless Steel (SDSS) Alloy

被引：18

作者：

Cojocaru, Vasile Danut ^{[1
]}

Raducanu, Doina ^{[1
]}

Angelescu, Mariana Lucia ^{[1
]}

Vintila, Adrian Nicolae ^{[2
]}

Serban, Nicolae ^{[1
]}

Dan, Ioan ^{[3
]}

Cojocaru, Elisabeta Mirela ^{[1
]}

Cinca, Ion ^{[1
]}

机构：

[1] Univ Politehn Bucuresti, Bucharest 060042, Romania

[2] SC Forja Rotec SA, Buzau 120068, Romania

[3] SC R&D Consultanta & Serv SRL, Bucharest 020943, Romania

来源：

JOM | 2017年 / 69卷 / 08期

关键词：

STRESS-CORROSION CRACKING; MECHANICAL-PROPERTIES; PHASE-TRANSFORMATION; ISOTHERMAL TREATMENT; CHLORIDE SOLUTION; SIGMA-PHASE; BEHAVIOR; TEMPERATURE; EVOLUTION; WELDS;

D O I：

10.1007/s11837-017-2372-0

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The microstructural changes induced by solution treatment of an industrial forged F53 Super Duplex Stainless Steel alloy were studied, in order to emphasize how component phases are influenced by heat treatment temperature and duration. The solution treatment was done at a temperature of 1100A degrees C, with variable holding times: 0.6 ks (10 min), 3.6 ks (60 min) and 10.8 ks (180 min). Scanning electron microscopy-electron backscattered diffraction was used as main characterization technique, to obtain and analyse data referring to microstructural features, such as: nature and morphology of constituent phases, average grain-size and grain misorientation. It was shown that in all studied cases the microstructure consisted of a mixture of about 45% delta-Fe (ferrite) and 55% gamma-Fe (austenite). Besides delta-Fe and gamma-Fe phases, other phases were also identified, such as tau-phase (chromium-iron carbide), sigma-phase (chromium-iron) and delta-(Cr-Fe) (ferrite).

引用

页码：1439 / 1445

页数：7

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