EFFECT OF THE ADDITION OF NIOBIUM AND ALUMINIUM ON THE MICROSTRUCTURES AND MECHANICAL PROPERTIES OF MICRO-ALLOYED PM STEELS

被引：13

作者：

Gunduz, Suleyman ^{[1
]}

Erden, Mehmet Akif ^{[2
]}

Karabulut, Hasan ^{[3
]}

Turkmen, Mustafa ^{[4
]}

机构：

[1] Karabuk Univ, Fac Technol, Dept Mfg Engn, TR-78050 Karabuk, Turkey

[2] Karabuk Univ, Inst Sci & Technol, Dept Mfg Engn, TR-78050 Karabuk, Turkey

[3] Karabuk Univ, Karabuk Vocat Sch, TR-78050 Karabuk, Turkey

[4] Kocaeli Univ, Hereke Vocat Sch, Dept Met, Kocaeli, Turkey

来源：

MATERIALI IN TEHNOLOGIJE | 2016年 / 50卷 / 05期

关键词：

powder metallurgy; micro-alloyed steels; microstructure; NB MICROALLOYED STEEL; CARBON-STEEL; HOT DEFORMATION; PRECIPITATION; AUSTENITE; RECRYSTALLIZATION; EVOLUTION; VANADIUM; TI; CHEMISTRY;

D O I：

10.17222/mit.2015.248

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this work, the effects of the addition of Nb and Al on the microstructures and tensile behaviours of micro-alloyed powder metallurgy (PM) steels were investigated. The microstructure of the micro-alloyed PM steels was examined by light microscope, SEM, XRD, XRF and EDS. The results indicated that the addition of (0.1, 0.15 or 0.2) % of Nb-Al increases the yield strength (YS) and the ultimate tensile strength (UTS) of the PM sintered steels. Elongation also tends to improve with an increasing Nb and Al content. In addition, the Nb and Al limit the grain growth during austenitization.

引用

页码：641 / 648

页数：8

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