Characterization of Isothermally Heat-Treated High Carbon Nanobainitic Steels

被引：2

作者：

Sidhu, G. ^{[1
]}

Bhole, S. D. ^{[2
]}

Essadiqi, E. ^{[3
]}

Chen, D. L. ^{[2
]}

机构：

[1] Queens Univ, Dept Mech & Mat Engn, Kingston, ON K7L 3N6, Canada

[2] Ryerson Univ, Dept Mech & Ind Engn, Toronto, ON M5B 2K3, Canada

[3] Univ Int Rabat, Aerosp Sch Engn, Racade Rabat Sale 11100, Sala El Jadida, Morocco

来源：

JOURNAL OF MATERIALS ENGINEERING AND PERFORMANCE | 2013年 / 22卷 / 10期

基金：

加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

mechanical properties; metals and alloys; nanostructured materials; scanning electron microscopy; BAINITE; TEMPERATURE; STRENGTH; BEHAVIOR; HARDNESS;

D O I：

10.1007/s11665-013-0581-4

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Isothermal heat treatment close to the martensite-start temperature at various transformation times, followed by hardness and compression tests, has been performed for three new high carbon experimental nanobainitic steels. Microstructural characterization clearly revealed the formation of lower bainitic structures with plate thickness in the range of nanometers. Analysis of the volume fraction of the bainitic phase via x-ray diffraction indicates that the presence of Co and Al accelerates the transformation resulting in almost complete transformation within 24 h. The effect of transformation and the resulting microstructure on the mechanical properties are also presented. Finally, the data collected from the compression tests have been used to develop an enhanced correlation between the yield strength and hardness in steels. Comparison of the improved correlation with three other frequently used correlations from the literature reveals a good performance of the proposed correlation.

引用

页码：3070 / 3076

页数：7

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