Effect of Rolling and Heat-Treatment on Structure and Properties of Wear-Resistant Steel NM450D-Carbon Steel Q235B Clad Plate

邱俊; 程晓茹; 兰昆; 雷冬; 王煜; 黄大军

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Effect of Rolling and Heat-Treatment on Structure and Properties of Wear-Resistant Steel NM450D-Carbon Steel Q235B Clad Plate

更新时间：2026-01-21

- Effect of Rolling and Heat-Treatment on Structure and Properties of Wear-Resistant Steel NM450D-Carbon Steel Q235B Clad Plate
- Special Steel Vol. 38, Issue 2, Pages: 56-59(2017)
- 作者机构：
  
  1. 武汉科技大学钢铁冶金及资源利用省部共建教育部重点实验室,武汉,430081
  2. 武汉钢铁股份有限公司,武汉,430083
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Received：26 October 2016，
  
  Online First：23 July 2022，
  
  Published：23 July 2017
- 稿件说明：
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邱俊, 程晓茹, 兰昆, et al. Effect of Rolling and Heat-Treatment on Structure and Properties of Wear-Resistant Steel NM450D-Carbon Steel Q235B Clad Plate[J]. Special Steel, 2017, 38(2): 56-59.
DOI：

邱俊, 程晓茹, 兰昆, et al. Effect of Rolling and Heat-Treatment on Structure and Properties of Wear-Resistant Steel NM450D-Carbon Steel Q235B Clad Plate[J]. Special Steel, 2017, 38(2): 56-59. DOI：

摘要

10 mm NM450D低合金耐磨钢板（/%:0.22C，0.70Cr，1.50Mn，0.30Si，0.012Ti，0.030Nb）和10 mm Q235B碳钢板（/%:0.19C，0.25Mn，0.04Si）经表面处理和四角焊接成20 mm复合板，在180 mm二辊实验轧机上经1150℃，60%压下率和930℃，30%压下率两次轧制成5.6 mm复合板

再经800~1000℃淬火，250℃回火处理。结果表明，经900℃淬火+250℃回火的低合金耐磨钢-碳钢复合板的5.6 mm复合界面接触良好，Q235B钢组织为板条马氏体+铁素体和少部贝氏体和珠光体，NM450D钢组织为回火马氏体

其HV值为500，复合钢板抗剪强度为367 MPa，均达到标准要求。

Abstract

The 20 mm clad plate of surface-treated 10 mm plate of low alloy wear-resistant NM450D steel (/% : 0.22C

0.70Cr

1.50Mn

0.30Si

0.012Ti

0.030Nb) and 10 mm plate of carbon steel Q235B (/% ： 0.19C

0.25Mn

0.04Si) is welded at four-comer of plate and double-rolled by a lab 180 mm two-high mill with reduction 60% at 1150℃ and with reduction 30% at 930°C to 5.6 mm clad plate

then quenched at 800~1000°C and tempered at 250 °C. Results show that the clad interface of 5.6 mm clad plate of low alloy wear-resistant steel-carbon steel quenched at 900°C + tempered at 250°C has nice contact

the structure of steel Q235 is lath martensite + ferrite and minor bainite and pearlite

the structure of steel NM450D is tempered martensite with HV hardness value 500

the shearing-strength of clad plate is 367 MPa

all meet the requirement of standard.

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