Investigation of the Tempering Treatment on the Mechanical Propertiesof 13%Cr Super Martensitic Stainless Steel

Subject Areas :

Saeeid  Jbarzare ¹ (کارشناس ارشد مهندسی مواد ، مرکزتحقیقات مواد پیشرفته، دانشکده مهندسی مواد، واحد نجف آباد)
Iman  Kheirollahi-Hoseinabadi ² (-----)
S. M  Sehri ³ (کارشناس ارشد مهندسی مواد، مرکزتحقیقات مواد پیشرفته، دانشکده مهندسی مواد، واحد نجف آباد)
Rasol  Ghasemi ⁴ (----------)
محمد  Kuwaiti ⁵ (-----)
ابراهیم  Shokraneh ⁶ (-------)

Received: 2016-05-16 Accepted : 2016-06-22 Published : 2016-05-21

Keywords: Mechanical Properties, Super Martensitic Stainless Steel, Tempering, Retained Austenite,

Abstract :

The samples wear tempered at 520-720 °C for 3-10 h and air cooling to investigate the effect of tempering treatment on microstructural evolution and mechanical properties of13%Cr SuperMartensitic Stainless Steel. After heat treatment, hardness and tensile strength tests were performed for investigation of mechanical properties. Moreover, optical microscopy and scanning electron microscopy (SEM) were performed for investigation of microstructure observations. X-Ray diffraction (XRD) was carried out to measure of austenite retained in the samples. The results indicated that the optimization of mechanical properties were achieved by austenitizing treatment at 1050 °C for 1 h and water quenching and then tempering treatment at 600 °C for 3 h with air cooling.The results indicated that the optimization of mechanical properties were achieved by austenitizing treatment at 1050 °C for 1 h and water quenching and then tempering treatment at 600 °C for 3 h with air cooling.The results indicated that the optimization of mechanical properties were achieved by austenitizing treatment at 1050 °C for 1 h and water quenching and then tempering treatment at 600 °C for 3 h with air cooling.

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