Nb-Ti微合金化船板钢CCSD36连铸板坯的高温力学性能

特殊钢 ›› 2009, Vol. 30 ›› Issue (4): 66-67.

Nb-Ti微合金化船板钢CCSD36连铸板坯的高温力学性能

赵俊花, 朱立光, 孙亮

河北理工大学冶金与能源学院，唐山063009

收稿日期:2009-01-14 出版日期:2009-08-01 发布日期:2022-12-20
作者简介:赵俊花(1982-),女，研究生，2006年河北理工大学毕业，钢的连铸和质量控制。

Mechanical Properties of Cast Slab of Nb-Ti Microalloy Steel CCSD36 for Ship Plate at Elevated Temperature

Zhao Junhua, Zhu Liguang, Sun Liang

College of Metallurgy and Energy Source, Hebei Polytechnic University, Tangshan 063009

Received:2009-01-14 Published:2009-08-01 Online:2022-12-20

摘要/Abstract

摘要： 用Gleeble-1500热模拟试验机测试了CCSD36钢(%:0.14C、1.31Mn、0.02Nb、0.02Ti)250 mm×2100mm铸坯600～1350℃的强度(Rm)和断面收缩率(Z),并分析了600～1150℃拉伸试样断口的显微组织。得出该钢在1300～900℃Z值≥80%,具有高的延塑性;850～720℃Z值降至52%～55%(Ⅲ脆性区),因此CCSD36钢铸坯的矫直温度应≥900℃。

关键词: 船板钢CCSD36, , 连铸板坯, 矫直温度

Abstract: The tensile strength (Rm) and reduction of area(Z)of 250 mm×2100 mm cast slab of steel CCSD36 (%:0. 14C,1.31Mn,0.02Nb,0.02Ti) at 600～1350 ℃ has been measured by using Gleeble- 1500 thermal simulation testing machine and the structure of fracture of tensile specimen tested at 600～1150 ℃ was analyzed. It was obtained that the steel had high plasticity at 1300～900 ℃,of which the Z value at this temperature range was ≥80%, and the Z value of steel decreased to 52%～55% at 850～720 ℃(Ⅲ brittle zone),therefore the strengthening temperature of cast slab of steel CCSD36 should be ≥900 ℃.

赵俊花, 朱立光 , 孙亮. Nb-Ti微合金化船板钢CCSD36连铸板坯的高温力学性能[J]. 特殊钢, 2009, 30(4): 66-67.

Zhao Junhua, Zhu Liguang, Sun Liang. Mechanical Properties of Cast Slab of Nb-Ti Microalloy Steel CCSD36 for Ship Plate at Elevated Temperature[J]. Special Steel, 2009, 30(4): 66-67.