【摘 要】
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The effects of the addition of 0-1.2wt.％ Ni and 0-2wt.％ Co in P92 steel weld metal on its Acl temperature was analyzed using computational thermodynamic software
【机 构】
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School of Power and Mechanics
论文部分内容阅读
The effects of the addition of 0-1.2wt.％ Ni and 0-2wt.％ Co in P92 steel weld metal on its Acl temperature was analyzed using computational thermodynamic software ( Thermo-CalcTM ) in this paper.The results indicate that both Ni and Co decrease the Acl of P92 steel weld metal,and each elements has a pronounced linear relationship with the Acl. The influence of Ni on Acl is much larger than that of Co.In order to evaluate effects of Co and Ni in combination on Acl of P92 steel weld metal,an equation Nieq =Ni +0.096Co was developed.According to the formula,the decreasing effect of Co on Acl is just about 1/10 of that of Ni.For welding consumables of P92 steel,the substitution of Co for Ni (part or whole) could be an appropriate way to avoid the strong reduction of Acl and improve the properties of weld metal.
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