CN105618959A - 一种用于MONEL-K500合金激光焊接与熔覆的新型SL-NiCrMo合金材料 - Google Patents
一种用于MONEL-K500合金激光焊接与熔覆的新型SL-NiCrMo合金材料 Download PDFInfo
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
- B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
- B23K35/00—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting
- B23K35/22—Rods, electrodes, materials, or media, for use in soldering, welding, or cutting characterised by the composition or nature of the material
- B23K35/24—Selection of soldering or welding materials proper
- B23K35/30—Selection of soldering or welding materials proper with the principal constituent melting at less than 1550 degrees C
- B23K35/3033—Ni as the principal constituent
- B23K35/304—Ni as the principal constituent with Cr as the next major constituent
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- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/055—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 20% but less than 30%
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- C—CHEMISTRY; METALLURGY
- C22—METALLURGY; FERROUS OR NON-FERROUS ALLOYS; TREATMENT OF ALLOYS OR NON-FERROUS METALS
- C22C—ALLOYS
- C22C19/00—Alloys based on nickel or cobalt
- C22C19/03—Alloys based on nickel or cobalt based on nickel
- C22C19/05—Alloys based on nickel or cobalt based on nickel with chromium
- C22C19/051—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W
- C22C19/056—Alloys based on nickel or cobalt based on nickel with chromium and Mo or W with the maximum Cr content being at least 10% but less than 20%
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Abstract
发明名称:一种用于MONEL?K500合金激光焊接增材与熔覆的新型SL-NiCrMo合金材料本项发明研发了一种用于MONEL?K500合金激光焊接与熔覆的新型SL-NiCrMo合金材料,研发的这种新型SL-NiCrMo合金的化学成分质量百分数为:镍(Ni):40--70%,铬(Cr):10--30%,钼(Mo):2--12%,铌(Nb):0.5-5.0%,铁(Fe):1.0-5.0%,铝(Al):0.05-0.50%,钛(Ti):0.05-0.40%,锰(Mn):0.10-0.50%,硅(Si):0.10-0.50%,硫(S):低于0.015%,磷(P):低于0.015%。以这种合金脉冲激光焊接增材修复磨损冲蚀MONEL-K500合金工件,或是光纤激光熔覆修复磨损冲蚀MONEL-K500合金工件,其激光焊接增材合金或熔覆合金的相对磁导率(Relative?permeability)低于1.001;硬度(290-310HV0.3)略高于MONEL-K500合金工件本体的硬度(MONEL-K500合金工件的硬度为210-230HV0.3);且有较好的耐腐蚀性。
Description
技术领域
本项发明属于高新工艺材料技术领域,特别涉及一种适用于MONELK500合金工件激光焊接、激光熔覆的合金材料。
背景技术
MONEL-K500(按美国UNS标准是UNSN05500)合金是一种含有铝、钛等合金元素的镍铜合金,其化学成分质量百分数如下:
镍(加钴)(Nickel(plusCobalt)):大于63.0%;碳(Carbon):小于0.25%;锰(Manganese):小于1.5%;
铁(Iron):小于2.0%;铜(Copper):27.0-33.0%;硅(Silicon):小于0.5%;
铝(Aluminum):2.30-3.15%;钛(Titanium):0.35-0.8%;硫(Sulfur):小于0.01%;。
MonelK500合金具有低的磁导率,高的强度和良好的耐腐蚀性等良好的综合性能,在现代工业,特别是在油井测量设备的重要部件和一些特殊需要的电子元件上得到应用。以这种合金制作的一些形状复杂的石油钻井设备工件在使用过程中往往被局部冲蚀磨损,例如用于石油钻采油井侧量设备的零件(其结构形状复杂,价格昂贵)局部经受冲蚀磨损和气蚀,导致缺损,不能继续使用。若整件报废造成较大经济损失。为此希望能用焊接或熔覆再造方法修复。这些零件结构形状复杂若用常规电弧焊、氩弧焊等焊接方法往往会导致变形。且已有研究工作指出退火或淬火后的这种合金若再次被加热,也会导致磁导率上升。常规电弧焊、氩弧焊热影响区较宽,受热区域较大,导致磁导率上升,致使电弧焊、氩弧焊修复的工件也不能满足要求,而不能使用。以同种材质的MONELK500作为焊接填充材料时;由于这种MONELK500合金中的钛、铝等元素在焊接过程中的烧损,也会导致磁导率上升(工程实践中表现出由“无磁”变为“有磁”)。为减小常规焊接方法导致的零件变形,可用高能量密度的激光焊接。特别是用脉冲激光焊接有很小的热影响区,可减小甚至防止焊接变形,减小受热区域,减少因加热对磁导率的影响。然而,若以MONELK500合金作为填充材料,在脉冲激光焊接过程中仍不可避免发生焊接区表面元素的烧损,导致零件导磁率上升,表现出“弱磁性”。为此本发明研制了一种新型合金,用于这种合金零件的脉冲激光焊接-熔覆再造修复。保证用这种合金—脉冲激光焊接熔覆金属的硬度与原MONELK-500合金的硬度相近,相对磁导率(Relativepermeability)低于1.001。
发明内容
本项发明研发了一种用于MONELK500合金激光焊接与熔覆的新型SL-NiCrMo合金材料,研发的这种新型SL-NiCrMo合金的化学成分质量百分数为:镍(Ni):40--70%,铬(Cr):10--30%,钼(Mo):2--12%,铌(Nb):0.5-5.0%,铁(Fe):1.0-5.0%,铝(Al):0.05-0.50%,钛(Ti):0.05-0.40%,锰(Mn):0.10-0.50%,硅(Si):0.10-0.50%,硫(S):低于0.015%,磷(P):低于0.015%。
符合上述化学成分的合金可制成以下制品备用:
1)制成厚度:0.3mm—0.5mm、宽度不大于6mm的合金薄片带;
2)制成直径0.3mm-0.6mm的合金丝;
3)制成合金粉末。其制作工艺是:按成分需要配料,感应炉熔炼,熔化好的液态合金经雾化器惰性气体雾化制成这种合金的粉末,经筛分,取其中粒径在45μm-100μm的合金粉末备用。
在激光焊接时可直接使用上述合金薄片带和合金丝作为填充材料。在使用上述合金粉末时,可将合金粉末预置于工件待焊接或熔覆表面,然后用激光焊接或熔覆。也可用送粉器输送这种合金粉末在MONEL-K500合金工件表面进行激光熔覆。其中这种新型合金的丝和薄片带更适合于磨损冲蚀气蚀损伤的MONEL-K500合金工件缺损部位的脉冲激光焊接修复。
以这种合金脉冲激光焊接修复,或是光纤激光熔覆修复的MONEL-K500合金工件的激光焊覆合金或熔覆合金的相对磁导率(Relativepermeability)低于1.001;硬度(290-310HV0.3)略高于MONEL-K500合金工件本体的硬度(MONEL-K500合金工件的硬度为210-230HV0.3);且有较好的耐腐蚀性。
应用实例:
用研制SL-NiCrMo合金、脉冲激光修复一种结构形状复杂、经受冲蚀磨损的MONEL-K500合金工件。
说明书附图1给出冲蚀磨损的MONEL-K500合金工件修复前的照片。图中标示出待修复的冲蚀磨损部位。
修复工序如下:
1)对工件表面进行清理,去除油污、清洗干净。
2)进行着色渗透探伤,确认没有裂纹。
3)用砂轮磨削,去除冲蚀磨损部位的损伤层。
4)用直径0.5mm的研制的SL-NiCrMo合金丝,以400WYAG脉冲激光焊接机、在氩气保护下进行激光焊接增材,修补冲蚀磨损缺损部位。
说明书附图2给出用直径0.5mm的研制的SL-NiCrMo合金丝,以400WYAG脉冲激光焊接机、在氩气保护下进行激光焊接增材,修复的MONEL-K500合金工件的照片。
5)对用研制的SL-NiCrMo合金丝脉激光焊接修复的MONEL-K500合金工件按照图纸形进行机械加工,达到其形状尺寸要求。
对修复的工件,用强磁试块进行测试,不能吸附,“无磁”。达到产品要求。
对以研制的SL-NiCrMo合金丝在MONEL-K500合金试块上激光焊接熔覆增材的试样进行磁导率测试。结果表明其相对磁导率低于1.001.
说明书附图3-1和说明书附图3-2给出在MONEL-K500合金表面脉冲激光焊接增材/熔覆SL-NiCrMo合金试样的金相及显微硬度测量结果。金相试样是用硝酸-盐酸混合溶液浸蚀。看到在图中的下部MONEL-K500合金基体已被腐蚀并显示出组织,而在上部脉冲激光焊接增材/熔覆的SL-NiCrMo合金层仍保持原有的光亮,说明脉冲激光焊接增材/熔覆SL-NiCrMo合金有较好的耐腐蚀性。从显微硬度测量结果看到,脉冲激光焊接增材/熔覆SL-NiCrMo合金的显微硬度为298HV0.3—299.5HV0.3(相当于29.4HRC—29.5HRC)略高于基体材料MONEL-K500合金的显微硬度(267HV0.3,相当于25.6HRC)。达到产品要求。
Claims (1)
1.发明名称:一种用于MONELK500合金激光焊接与熔覆的新型SL-NiCrMo合金材料
本项发明研发了一种用于MONEL-K500合金激光焊接与熔覆的新型SL-NiCrMo合金材料,研发的这种新型SL-NiCrMo合金的化学成分质量百分数为:镍(Ni):40--70%,铬(Cr):10--30%,钼(Mo):2--12%,铌(Nb):0.5-5.0%,铁(Fe):1.0-5.0%,铝(Al):0.05-0.50%,钛(Ti):0.05-0.40%,锰(Mn):0.10-0.50%,硅(Si):0.10-0.50%,硫(S):低于0.015%,磷(P):低于0.015%。
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CN112226650A (zh) * | 2020-10-16 | 2021-01-15 | 西安热工研究院有限公司 | 一种蒸汽发生器手孔端止裂降裂的焊材金属及其制备方法 |
CN113263258A (zh) * | 2021-04-09 | 2021-08-17 | 成都先进金属材料产业技术研究院股份有限公司 | 镍基合金管材的焊接方法及焊接装置 |
CN113774254A (zh) * | 2021-08-29 | 2021-12-10 | 钢铁研究总院 | 一种适用于增材制造的镍基合金丝材及制造工艺 |
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