Mechanism of microstructural banding in hot rolled microalloyed steels

被引：5

作者：

Cai, S ^{[1
]}

Boyd, JD ^{[1
]}

机构：

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

来源：

MICROALLOYING FOR NEW STEEL PROCESSES AND APPLICATIONS | 2005年 / 500-501卷

关键词：

microstructural banding; thermornechanical processing; strain induced grain boundary migration; abnormal grain growth;

D O I：

10.4028/www.scientific.net/MSF.500-501.171

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Pilot-scale plate rolling experiments and laboratory thermomechanical processing experiments were carried out to understand the mechanism of microstructural banding in low-carbon microalloyed. steels. The microstructural banding originates with large elongated austenite grains, which are present at the roughing stage of rolling. The large austenite grains develop when conditions favour abnormal grain growth during reheat and/or strain induced grain boundary migration (SIBM) in the first few rolling passes. Microstructural banding is eliminated by designing TMP schedules to avoid abnormal grain growth and SIBM.

引用

页码：171 / 178

页数：8

共 11 条

[1]

ANDERSON WA, 1945, T AM I MIN MET ENG, V161, P140

[2] Effect of ferrite formation on abnormal austenite grain coarsening in low-alloy steels during the hot rolling process [J].

Asahi, H ;

Yagi, A ;

Ueno, M .

METALLURGICAL AND MATERIALS TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1998, 29 (05) :1375-1381

[3] EFFECT OF DEFORMATION PARAMETERS ON THE NO-RECRYSTALLIZATION TEMPERATURE IN NB-BEARING STEELS [J].

BAI, DQ ;

YUE, S ;

SUN, WP ;

JONAS, JJ .

METALLURGICAL TRANSACTIONS A-PHYSICAL METALLURGY AND MATERIALS SCIENCE, 1993, 24 (10) :2151-2159

[4]

CONRAD H, 1963, RECOVERY RECRYSTALLI, P124

[5]

Gladman T., 1997, PHYS METALLURGY MICR, V1st

[6]

HILL RR, 1973, PHYS METALLURGY PRIN, P319

[7] Solidification, segregation, and banding in carbon and alloy steels [J].

Krauss, G .

METALLURGICAL AND MATERIALS TRANSACTIONS B-PROCESS METALLURGY AND MATERIALS PROCESSING SCIENCE, 2003, 34 (06) :781-792

[8]

Sellars C.M., 1980, Hot Working and Forming Processes, P3

[9]

Tanaka T., 1981, International Metals Reviews, V26, P185

[10]

THOMPSON SW, 1992, MATER SCI TECH SER, V8, P777, DOI 10.1179/026708392790171332

← 1 2 →