Identification of the mechanisms responsible for static strain ageing in heavily drawn pearlitic steel wires

被引：10
|
作者：
Lamontagne, A. [1 ]
Kleber, X. [1 ]
Massardier-Jourdan, V. [1 ]
Mari, D. [2 ]
机构：
[1] Univ Lyon, INSA Lyon, MATEIS UMR CNRS 5510, F-69621 Villeurbanne, France
[2] Ecole Polytech Fed Lausanne, Inst Condensed Matter Phys, CH-1015 Lausanne, Switzerland
来源：
PHILOSOPHICAL MAGAZINE LETTERS | 2014年 / 94卷 / 08期
关键词：
pearlite; drawing; phase decomposition; ageing; kinetics; TEP; APT; DSC; CEMENTITE DISSOLUTION; PLASTIC-DEFORMATION; CARBON-STEEL; COLD-DRAWN; THERMOELECTRIC-POWER; ATOM-PROBE; DECOMPOSITION; TEMPERATURE; STRENGTH; KINETICS;
D O I：
10.1080/09500839.2014.938137
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
The microstructural changes occurring during drawing and ageing in pearlitic steel wires have been studied using the thermoelectric power (TEP) measurements combined with atom probe tomography (APT) and differential scanning calorimetry (DSC). APT analysis confirmed that cementite dissolution occurs during the cold-drawing process. The high sensitivity of TEP to solute atoms allowed two ageing mechanisms to be identified, both related to a redistribution of carbon atoms. The complementary use of tensile tests and DSC confirmed these results.
引用
收藏
页码：495 / 502
页数：8
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