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.
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:
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
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