Systematic investigation of acicular ferrite formation on laboratory scale

被引：24
|
作者：
Loder, D. [1 ]
Michelic, S. K. [1 ]
机构：
[1] Univ Leoben, Leoben, Austria
来源：
MATERIALS SCIENCE AND TECHNOLOGY | 2017年 / 33卷 / 02期
基金：
奥地利科学基金会;
关键词：
Acicular ferrite; Microstructure; Non-metallic inclusions; High temperature laser scanning confocal microscopy (HT-LSCM); HSLA steel; NONMETALLIC INCLUSIONS; WELD METALS; NUCLEATION; MICROSTRUCTURE; TITANIUM; BEHAVIOR; STEELS;
D O I：
10.1080/02670836.2016.1165902
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
By increasing the amount of acicular ferrite (AF) in the microstructure, steel toughness can be improved significantly. The steel composition, cooling rate, non-metallic inclusions and austenite grain size have a strong influence on the formation of AF. The present paper describes and compares two approaches to study AF formation in a titanium-deoxidised high-strength low-alloyed steel and its influencing factors on laboratory scale: route A simulates the formation of AF after heat treatment; route B simulates the formation directly after solidification of the melt. The formation of AF is essentially influenced by the former processing, which also changes the optimum cooling parameters substantially. (Ti,Mn)(x)O-y and (Ti,Al,Mn)(x)OySz are the predominant active inclusion types in the investigated steel.
引用
收藏
页码：162 / 171
页数：10
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