Microstructure and mechanical property of vacuum hot-rolled 825 alloy/X65 pipeline steel clad plate
LUO Zong-an1，CHEN Xiao-feng1，XIE Guang-ming1，WANG Guo-dong1，DANG Jun2， WANG Guang-lei3
（1. State Key Laboratory of Rolling and Automation， Northeastern University， Shenyang 110819， Liaoning， China 2. Research Institute， Nanjing Iron and Steel Co.， Ltd.， Nanjing 210035， Jiangsu， China 3. Plate Department， Nanjing Iron and Steel Co.， Ltd.， Nanjing 210035， Jiangsu， China）
Abstract：In order to ensure the requirement for H2S corrosion resistance pipeline in the oil and gas transportation fields， the 825 Ni-based alloy and X65 pipeline steel were combined successfully by vacuum rolling cladding （VRC） technique. The VRC is a new type cladding technique based on electron beam welding and hot rolling cladding. Under the condition of high vacuum level， elevated temperature and severe deformation， the excellent metallurgical bonding was performed on the clad interface. Four-layer symmetry rolling of X65-steel 825-steel 825-X65 was used and the microstructures and shear tension properties of the clad interfaces were investigated. The results indicated that the cladding interface was continuous and straight without any porosity and crack， and a thin continuous TiC layer with a small amount of Al2O3 particles was distributed on the interface. Besides， obvious inter-diffusions of Fe， Cr and Ni elements were detected at the interface. The average tension shear strength of the cladding interface reached 404 MPa， and the fracture located at the cladding interface.
收稿日期: 2016-07-22
出版日期: 2017-03-10
引用本文:
骆宗安，陈晓峰，谢广明，王国栋，党 军，王光磊. 真空轧制825合金/X65钢复合板的组织性能[J]. 钢铁, 2017, 52(3): 64-69.
LUO Zong-an，CHEN Xiao-feng，XIE Guang-ming，WANG Guo-dong，DANG Jun， WANG Guang-lei. Microstructure and mechanical property of vacuum hot-rolled 825 alloy/X65 pipeline steel clad plate. Iron and Steel, 2017, 52(3): 64-69.
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2017, Vol. 52 
