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The effects of strain amplitude and low cycle fatigue (LCF) behavior on nodular cast iron with two-step austempering (TSA) process

Materials Research Express, 2019
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Two-step austempering of high performance steel with nanoscale microstructure

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2017
Abstract It is crucial to eliminate the thermally and mechanically less stable austenite blocks as much as possible if enhanced mechanical properties are demanded in high performance nanostructured bainitic steels. Step-austempering would be an efficient procedure in this regard.
Behzad Avishan, Sasan Yazdani
exaly   +2 more sources

Influence of a novel two-step austempering process on the strain-hardening behavior of austempered ductile cast iron (ADI)

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2004
Abstract An investigation was carried out to examine the influence of a novel two-step austempering process on the strain-hardening behavior of austempered ductile cast iron (ADI). Strain-hardening exponent (n value) of specimens austempered by conventional single-step austempering process as well as the novel two-step process were determined over ...
Susil K Putatunda
exaly   +2 more sources

Effect of microstructure on abrasion wear behavior of austempered ductile cast iron (ADI) processed by a novel two-step austempering process

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2005
Abstract An investigation was carried out to examine the influence of a novel two-step austempering process on microstructural parameters and the abrasion wear resistance of austempered ductile cast iron (ADI). Two batches of cylindrical pin specimens were prepared from an alloyed nodular ductile cast iron and were initially austenitized at 927 °C ...
Susil K Putatunda
exaly   +3 more sources

Improvement in strength and toughness of austempered ductile cast iron by a novel two-step austempering process

Materials & Design, 2004
Austempered ductile cast iron (ADI) has emerged as an important engineering material in recent years because of its excellent mechanical properties. These include high strength with good ductility, good wear resistance, fatigue strength and fracture toughness. It is therefore considered as an economical substitute for wrought or forged steel in several
Susil K Putatunda
exaly   +2 more sources

Mechanical Characterization of Austempered Ductile Iron Obtained by Two Step Austempering Process

Transactions of the Indian Institute of Metals, 2017
Austempered ductile iron (ADI) is known to have a good combination of mechanical properties due its unique ausferrite microstructure. The strength of ADI is mainly a function of the austempering temperature and the stability of ausferrite matrix. To increase the stability of the ausferritic matrix, two stage austempering processes was developed. During
Vinayak Dakre, Ajay Likhite
exaly   +2 more sources

Influence of two-step austempering at different temperatures on mechanical and microstructural properties of AISI 9254 high silicon steel

Ironmaking and Steelmaking, 2023
This study was undertaken to understand the effects of two-step austempering treatment on an AISI 9254 high silicon steel towards tailoring the properties as desired while simultaneously employing the benefits of high and low austempering temperatures. The samples were initially austenitized at 850°C for 20 min, followed by austempering in a salt bath ...
Burak Nalcaci, Meltem Baysun, Abdollah Bahador   +2 more
exaly   +5 more sources

Near threshold fatigue crack growth behavior of austempered ductile cast iron (ADI) processed by a novel two-step austempering process

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2005
Abstract The influence of a novel two-step austempering process on the microstructure and the near threshold fatigue crack growth behavior of austempered ductile cast iron (ADI) were investigated. Cylindrical tensile and compact tension (CT) specimens (for fatigue threshold tests) were prepared from an alloyed nodular ductile cast iron as per ASTM ...
Susil K Putatunda
exaly   +2 more sources

Enhancement of abrasion resistance of ductile cast iron by applying a two step austempering treatment

International Journal of Cast Metals Research, 2006
AbstractDue to the low wear resistance of as cast ductile iron (DI), it seemed logical to apply a recently developed two step austempering heat treatment. This process is known to enhance the mechanical properties as well as the wear properties of ductile irons.
exaly   +2 more sources

Effects of first-step controlling on ultra-fine bainitic steel produced by two-step austempering process

Materials Science & Engineering A: Structural Materials: Properties, Microstructure and Processing, 2022
Dongyun Sun, Xiaoyan Long, Zhinan Yang   +2 more
exaly   +2 more sources