Paper Title:
Development of Hypereutectoid Steel with Nodular Graphite
  Abstract

This work studies the formation of cast structures in hypereutectoid steel modified by alloying modifiers (Fe30Si55Mg7Ca2REM4, Fe34Si55Mg9Ca2 and Fe63Ni30Mg7) together with inoculants Fe20Si60Ba20. It is found that at spheroidizing by 0.7 % Fe63Ni30Mg7 and inoculation by 1.5 % Fe20Si60Ba20 causes the formation of inclusions of nodular graphite with nodularity exceeding 90 % and a structurally-free cementite structure is obtained. The mechanical properties of the steel with nodular graphite modified by Fe63Ni30Mg7 and Fe20Si60Ba20 are as follows: tensile strength (σb) 660-680 МPа, yield strength (σ0.2) 520-540 МPа, percent elongation (δ) 5-8 %, impact strength (КС) 15-35 J/cm2, Brinell hardness (НВ) 241-255. After ferritic annealing these parameters were found to be σb =530-560 МPа, σ0.2=400-430 МPа, δ =20-24 %, КС=160- 180 J/cm2, 150-162 НВ.

  Info
Periodical
Edited by
Adel Nofal and Mohamed Waly
Pages
132-136
DOI
10.4028/www.scientific.net/KEM.457.132
Citation
D. S. Kozak, "Development of Hypereutectoid Steel with Nodular Graphite", Key Engineering Materials, Vol. 457, pp. 132-136, 2011
Online since
December 2010
Authors
Export
Price
$32.00
Share

In order to see related information, you need to Login.

In order to see related information, you need to Login.

Authors: S.Y. Nastich, Y.D. Morozov, L.I. Efron, M.Y. Matrosov
Abstract:The required complex of properties of modern pipe steels, including improved weldability and cold resistance, can be achieved due to...
4744
Authors: Yong Nam Kwon, Young Seon Lee, Jung Hwan Lee
Abstract:Micro-alloyed cold forging steel has been developed to rule out heat treatment process before forging in order to save energy consumption....
61
Authors: Y. Prasetyo, S.K. Lee, Eung Ryul Baek
Abstract:Nodular infinite chilled iron (NICI) material with high content of nickel (~4.00%) was usually used as work roll in hot strip rolling mill....
386
Authors: Na Li, Jun Wei Zhang, Lu Lu Zhai
Abstract:The quality and properties of steels may be affected due to the segregation of the alloying elements, even though the properties of steels...
3857
Authors: Qing Hui Wang, Hua Wu, Tao Chen
Chapter 3: Material Science, Technology and Processing
Abstract:The microstructure, mechanical properties, precipitation of micro alloying elements and welding performance of self-designed 20MnSi steel...
395