EFFECTS OF HOT CHARGE ROLLING ON THE MECHANICAL-PROPERTIES AND MICROSTRUCTURE OF CONTROLLED-ROLLED HIGH-STRENGTH LOW-ALLOY STEEL

被引：0

作者：

MURATA, M ^{[1
]}

NISHIOKA, K ^{[1
]}

TAMEHIRO, H ^{[1
]}

机构：

[1] NIPPON STEEL CORP,KIMITSU RES & DEV LAB,KIMITSU 29911,JAPAN

来源：

TETSU TO HAGANE-JOURNAL OF THE IRON AND STEEL INSTITUTE OF JAPAN | 1988年 / 74卷 / 07期

关键词：

IRON AND STEEL METALLOGRAPHY - Microstructures - ROLLING MILL PRACTICE - Hot Rolling;

D O I：

10.2355/tetsutohagane1955.74.7_1454

中图分类号：

TF [冶金工业];

学科分类号：

0806 ;

摘要：

In this process, it becomes difficult to refine gamma grains by conventional controlled rolling because of the coarse as-cast gamma grains. In order to improve low-temperature toughness of HCR plate, the optimum rolling method of gamma grains was examined in the recrystallization and non-recrystallization regions. It is possible to obtain higher strength in HCR because precipitation hardening elements such as Nb are fully dissolved. The strength depends on processing conditions. Microalloying with Ti of about 0. 01% raises the strength by precipitation hardening.

引用

页码：1454 / 1461

页数：8