Effect of Austenizing Temperature on Microstructures and Mechanical Properties of Cr-W-Ni-Alloy Steel



An investigation was made to determine the effect of austenizing temperature on microstructure and tensile properties of Cr-W-Ni-alloy steel. Correlations of microstructure tensile properties and austenizing temperature parameters were established. Analysis of optical and scanning electron microscope show that there were a lot of coarse spherical undissolved carbides dispersed on the lath martensitic matrix in as-quenched specimens when austenized at 900°C while there were only very little nanometer carbides when austenized at 1000°C and 1100°C. The tensile properties show that austenizing temperature had large effect on the mechanical property of the Cr-W-Ni-alloy steel. Oil quenching after austenized at 1100°C for 26 minutes followed with tempering at 260°C for 3h, Cr-W-Ni-alloy steel obtained best strength and ductility match.



Xiong Zhou and Honghua Tan




X. Qu et al., "Effect of Austenizing Temperature on Microstructures and Mechanical Properties of Cr-W-Ni-Alloy Steel", Applied Mechanics and Materials, Vol. 248, pp. 26-30, 2013


December 2012




[1] S. Maropoulos,S. Karagiannis, N. Ridley, The effect of austenitising temperature on prior austenite grain size in a low-alloy steel, J. Materials Science and Engineering A 483-484(2008) 735-739.

DOI: https://doi.org/10.1016/j.msea.2006.11.172

[2] Morris Dilmore. EGLIN STELL-A LOW ALLOY HIGH STRENGTH COMPOSITION,P. United States Patent. (2009).

[3] YANG Dong-fang. Corrosion Impact Fatigue Behavior of A F1410 Steel and 300M Steel. Materials Engineering, J. 2003, 1: 3-6.

[4] Wan Xiaoshu. Development of Advanced Highly Alloyed Secondaried hardening Ultrahigh Strength Steel, J. Materials Engineering. 1994, 11: 1 - 5.

[5] Yang Shanglin. The effect of W on the transformation, microstructure and properties of 18Cr2Ni4WA, J. Journal of Harbin Engineering University. 2004, vol. 35A: 2331 – 2341.

[6] Li Zhi. The research and development of Aermet100, J. Journal of Aeronautical Materials. 2006, vol. 26: 265 – 270.