ENiCrFe-3过渡层对钴基硬质层成分和性能的影响
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摘要
利用手工电弧焊在9CrMoV钢和Stellite 21硬质层之间增加ENi Cr Fe-3过渡层,同时制备了不添加ENi Cr Fe-3过渡层的Stellite 21硬质层。结果显示:Stellite 21/ENiCrFe-3和ENi Cr Fe-3/9CrMoV界面都达到良好的冶金结合。ENi Cr Fe-3过渡层阻隔了铁元素从9CrMoV钢向Stellite 21硬质层的扩散,使得Stellite 21硬质层中靠近界面处中的铁元素含量降低。增加ENi Cr Fe-3过渡层避免了Stellite 21/9CrMoV界面处的硬度突变,降低了Stellite 21/9CrMoV界面处的残余应力。
ENiCrFe-3 interlay was added between 9CrMoV steel and Stellite 21 hard layer by using shielded metal arc welding, and the Stellite 21 hard layer on 9CrMoV steel without ENi Cr Fe-3 interlay was prepared. The results show the interfaces of Stellite 21/ENiCrFe-3 and ENiCrFe-3/9 CrMoV achieve good metallurgical bonding. The ENi Cr Fe-3 interlay blocks the diffusion of iron from 9CrMoV steel to Stellite 21 and reduces the iron content near the interface of Stellite 21 hard layer. With the addition of ENi Cr Fe-3 interlay, the hardness mutation of the interface of Stellite 21/9CrMoV is avoided and then the residual stress in Stellite 21/9CrMoV interface reduces.
ENiCrFe-3 interlay was added between 9CrMoV steel and Stellite 21 hard layer by using shielded metal arc welding, and the Stellite 21 hard layer on 9CrMoV steel without ENi Cr Fe-3 interlay was prepared. The results show the interfaces of Stellite 21/ENiCrFe-3 and ENiCrFe-3/9 CrMoV achieve good metallurgical bonding. The ENi Cr Fe-3 interlay blocks the diffusion of iron from 9CrMoV steel to Stellite 21 and reduces the iron content near the interface of Stellite 21 hard layer. With the addition of ENi Cr Fe-3 interlay, the hardness mutation of the interface of Stellite 21/9CrMoV is avoided and then the residual stress in Stellite 21/9CrMoV interface reduces.
引文
[1]Majumdar J D,Kumar A,Li L.Direct laser cladding of SiCdispersed AISI 316L stainless steel[J].Tribology International,2009,42:750-753.
[2]Gholipour A,Shamanian M,Ashrafizadeh F.Microstructure an d wear behavior of stellite 6 cladding on 17-4 PH stainless steel[J].Journal of Alloys and Compounds,2011,509:4905-4909.
[3]Brussk S,Schrey A,Barnikel J,et al.Steam turbine valve hard-F acings:experience and latest developments[J].Turbine Technical Conference and Exposition,2014,6:16-20.
[4]Wang D,Zhao H,Wang H,et al.Failure mechanism of a stellite coating on heat-resistant steel[J].Metallurgical and Materials Transactions A,2017,48:4356-4364.
[5]莫文林,陆善平,李殿中,等.一种核电核岛主设备用镍基焊丝的研制[J].焊接学报,2014,35(6):230-238.
[6]Xie F Q,Fu H Z.An investigation on supercooling directional solidification process of Cu-Ni single phase alloy[J].Chinese Science Bulletin,2000,45:131-34.
[7]谢玉,张燕,陈荣石,等.铸造Mg-Al-Zn合金的成分、相组成与凝固路径的关系[J].金属学报,2009,45(11):1396-1401.
[8]闫侯霞.不同焊接方法对NiCrFe堆焊层组织及性能的影响[J].焊管,2016,39(10):7-9.
[2]Gholipour A,Shamanian M,Ashrafizadeh F.Microstructure an d wear behavior of stellite 6 cladding on 17-4 PH stainless steel[J].Journal of Alloys and Compounds,2011,509:4905-4909.
[3]Brussk S,Schrey A,Barnikel J,et al.Steam turbine valve hard-F acings:experience and latest developments[J].Turbine Technical Conference and Exposition,2014,6:16-20.
[4]Wang D,Zhao H,Wang H,et al.Failure mechanism of a stellite coating on heat-resistant steel[J].Metallurgical and Materials Transactions A,2017,48:4356-4364.
[5]莫文林,陆善平,李殿中,等.一种核电核岛主设备用镍基焊丝的研制[J].焊接学报,2014,35(6):230-238.
[6]Xie F Q,Fu H Z.An investigation on supercooling directional solidification process of Cu-Ni single phase alloy[J].Chinese Science Bulletin,2000,45:131-34.
[7]谢玉,张燕,陈荣石,等.铸造Mg-Al-Zn合金的成分、相组成与凝固路径的关系[J].金属学报,2009,45(11):1396-1401.
[8]闫侯霞.不同焊接方法对NiCrFe堆焊层组织及性能的影响[J].焊管,2016,39(10):7-9.