CAJ | 학술논문

分别采用EDPCRMOV-A2-15和EDRCRMOWV-A1-03焊条对Q235低碳钢板进行堆焊,分析其堆焊显微组织、硬度及硬度变化的原因.结果表明：用焊条电弧焊堆焊EDPCRMOV-A2-15和EDRCRMOWV-A1-03时,第一层受到母材的稀释作用,硬度变化比较明显,第二层和第三层硬度变化较小,第二层硬度出现峰值,第三层基本可以反应熔敷金属的硬度.得出EDPCRMOV-A2-15和EDRCRMOWV-A1-03焊条堆焊层金属主要为马氏体,其硬度值的大小与显微组织和焊条合金元素的含量有关.
분별채용EDPCRMOV-A2-15화EDRCRMOWV-A1-03한조대Q235저탄강판진행퇴한,분석기퇴한현미조직、경도급경도변화적원인.결과표명：용한조전호한퇴한EDPCRMOV-A2-15화EDRCRMOWV-A1-03시,제일층수도모재적희석작용,경도변화비교명현,제이층화제삼층경도변화교소,제이층경도출현봉치,제삼층기본가이반응용부금속적경도.득출EDPCRMOV-A2-15화EDRCRMOWV-A1-03한조퇴한층금속주요위마씨체,기경도치적대소여현미조직화한조합금원소적함량유관.
The electrodes of EDPCRMOV-A2-15 and EDRCRMOWV-A1-03 were build-up weld on steel Q235.Its hardness,microstructure and the reasons for changed hardness were analyzed.The results show that the use of SMAW build-up welding EDPCRMOV-A2-15 and EDRCRMOWV-A1-03,the first layer with the dilution effect,it＇s hardness changed obviously,the hardness of the second and the third tiers changed slightly.The second hardness peak and the third layer can reflect the basic hardness of deposited metal.The main deposited metal electrode of EDPCRMOV-A2-15 and EDRCRMOWV-A1-03 was martensite,and the hardness and microstructure was decided by the electrode content of alloying elements.