Study on the Crack Formation Mechanism of Micro-alloyed Steel Slab during Hot Delivery Process

被引：4

作者：

Zhu, Zhenghai ^{[1
]}

Qiu, Shengtao ^{[2
]}

机构：

[1] Anhui Univ Technol, Coll Met & Resources, Maanshan 243002, Anhui, Peoples R China

[2] Natl Engn Res Ctr Continuous Casting Technol, Cent Iron & Steel Res Inst, Beijing 100081, Peoples R China

来源：

ADVANCED MATERIALS AND PROCESSES II, PTS 1-3 | 2012年 / 557-559卷

关键词：

microalloy steel; slab; hot delivery crack; precipitate;

D O I：

10.4028/www.scientific.net/AMR.557-559.120

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Based on experimental investigation of precipitates behavior, formation mechanism on hot delivery crack of microalloy steel was analyzed by binding microstructure evolution and thermal stress changing. The results show that different conveied way and different hot charging temperature are effect significantly on precipitates behavior in charging slab. The hot delivery crack of microalloy steel was formed by resultant force of precipitates behavior, microstructure evolution and thermal stress changing. The microstructure evolution that it is the formation of pro-eutectoid ferrite omentum on austenitic grain boundaries in Arl similar to Ar3 is the leading role on formation of hot delivery crack. It is supply conditions for precipitated particles distributed along the austenitic grain boundaries and formation of hot delivery crack of microalloy steel.

引用

页码：120 / +

页数：2

共 15 条

[1]

Chen G.Y., 1983, TESTING TECHNOLOGY F

[2]

KITAMURA M, 1984, T IRON STEEL I JPN, V24, P966

[3]

Liu Z.C., 2000, J BAOTOU U IRON STEE, V19, P197

[4]

Liu Z.C., 1992, QYENCHING CRACK STEE

[5]

Ma H.X., 2002, MATER SCI ENG, V20, P330

[6]

Niu S.T., 2007, RES 3D FINITE ELEMEN

[7]

Shuai X.Y., 2006, STEEL ROLLING, V23, P10

[8]

Wang Gui, 2001, Journal of Iron and Steel Research, V13, P15

[9]

Wang Y.T., 2008, RES IRON STEEL, V36, P14

[10]

Wang YL, 2007, PROCEEDINGS OF THE 2007 INTERNATIONAL CONFERENCE ON AGRICULTURE ENGINEERING, P296

← 1 2 →