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公开(公告)号：US06659332B2
公开(公告)日：2003-12-09
申请号：US10309727
申请日：2002-12-03
IPC分类号： B23K3100
摘要： A directionally solidified nickel-base superalloy article has a defect therein extending parallel to the solidification direction. The article is repaired by removing any foreign matter present in the defect, and then heating the article to a repair temperature of from about 60 to about 98 percent of the solidus temperature of the base material in a chamber containing a protective gas that inhibits oxidation of the base material. The defect is filled with a filler metal while maintaining the article at the repair temperature. The filling is accomplished by providing a source of the filler metal of substantially the same composition as the base material of the directionally solidified article, and melting the filler metal into the defect progressively while moving the source of the filler metal relative to the article in a direction parallel to the solidification direction. Optionally, additional artificial heat extraction is accomplished in a heat-flow direction that is within about 45 degrees of the solidification direction, as the filler metal solidifies within the defect. The article may thereafter be heat treated.
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2.发明授权
公开(公告)号：US6049060A
公开(公告)日：2000-04-11
申请号：US210879
申请日：1998-12-15
IPC分类号： B23K9/00
CPC分类号： B23K9/0026
摘要： An article is welded, as in weld repair of a defect, by positioning a weld lift-off block at a location on the surface of the article adjacent to the intended location of the end of the weldment on the surface of the article. The weld lift-off block has a wedge shape including a base contacting the surface of the article, and an upper face angled upwardly from the base from a base leading edge. A weld pool is formed on the surface of the article by directly heating the surface of the article using a heat source. The heat source is moved relative to the surface of the article and onto the upper surface of the weld lift-off block by crossing the leading edge of the wedge, without discontinuing the direct heating of the article by the heat source. The heating of the article with the heat source is discontinued only after the heat source is directly heating the upper face of the weld lift-off block, and not the article.
摘要翻译： 通过将焊接剥离块定位在物品表面上邻近焊件端部的预期位置的位置处，在制品的表面上焊接一件物品，如焊接修补缺陷。 焊接剥离块具有包括接触制品表面的基部和从基部前缘向上倾斜的上表面的楔形。 通过使用热源直接加热制品的表面，在制品的表面上形成焊池。 热源相对于制品的表面移动并且通过穿过楔形物的前缘而移动到焊接剥离块的上表面上，而不会中断通过热源直接加热制品。 只有在热源直接加热焊接剥离块的上表面而不是制品之后，用热源对制品的加热才停止。
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公开(公告)号：US06491207B1
公开(公告)日：2002-12-10
申请号：US09459302
申请日：1999-12-10
IPC分类号： B23K3100
摘要： A directionally solidified nickel-base superalloy article has a defect therein extending parallel to the solidification direction. The article is repaired by removing any foreign matter present in the defect, and then heating the article to a repair temperature of from about 60 to about 98 percent of the solidus temperature of the base material in a chamber containing a protective gas that inhibits oxidation of the base material. The defect is filled with a filler metal while maintaining the article at the repair temperature. The filling is accomplished by providing a source of the filler metal of substantially the same composition as the base material of the directionally solidified article, and melting the filler metal into the defect progressively while moving the source of the filler metal relative to the article in a direction parallel to the solidification direction. Optionally, additional artificial heat extraction is accomplished in a heat-flow direction that is within about 45 degrees of the solidification direction, as the filler metal solidifies within the defect. The article may thereafter be heat treated.
摘要翻译： 定向凝固的镍基超级合金制品具有平行于凝固方向延伸的缺陷。 通过去除缺陷中存在的任何异物来修复制品，然后将制品加热到含有抑制氧化的保护气体的室中基材的固相线温度的约60至约98％的修复温度 基材。 在将物品保持在修复温度的同时，填充金属的缺陷。 填充是通过提供与定向凝固制品的基础材料基本上相同的组成的填充金属源，并且将填充金属逐渐熔化成缺陷，同时将填料金属源相对于制品移动到 方向平行于凝固方向。 任选地，随着填充金属在缺陷内固化，在固化方向的约45度内的热流方向上完成另外的人造热提取。 此后可以对该制品进行热处理。
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公开(公告)号：US5897801A
公开(公告)日：1999-04-27
申请号：US787356
申请日：1997-01-22
CPC分类号： B23P6/007 , B23K35/304 , B23K9/0026 , B23K9/04 , B23K9/23 , B23P6/045 , F01D5/005
摘要： An article made of a nickel-base superalloy having a nil-ductility range from the solidus temperature of the alloy to about 600.degree. F. below the solidus temperature is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, adjusting the temperature of the article to a welding temperature of from about 1800.degree. F. to about 2100.degree. F., welding a preselected area in an inert atmosphere at the welding temperature, and second stress relieving the article. Welding is preferably accomplished by striking an arc in the preselected area so as to locally melt the alloy in the preselected area, providing a filler metal having the same composition as the nickel-based superalloy of the article, and feeding the filler metal into the arc so that the filler metal is melted and fused with the article to form a weldment upon solidification.
摘要翻译： 将由合金的固相线温度的无延伸范围从固相线温度以下约600°F的镍基超级合金制成的物品，例如在表面裂纹的焊接修复中，通过除去异物 从要焊接的区域中，首先将物品应力消除，将物品的温度调节到约1800°F至约2100°F的焊接温度，在焊接温度下将惰性气氛中的预选区域焊接， 第二个压力减轻了文章。 焊接优选通过在预选区域中击打电弧来实现，以便在预选区域中局部熔化合金，从而提供与制品的镍基超合金相同组成的填充金属，并将填充金属进料到电弧 使得填充金属熔化并与制品熔合以在凝固时形成焊件。
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公开(公告)号：US5785775A
公开(公告)日：1998-07-28
申请号：US785408
申请日：1997-01-22
CPC分类号： B23K9/0026 , B23K2203/10
摘要： An article made of a gamma titanium aluminide alloy is welded, as for example in the weld repair of surface cracks, by removing foreign matter from the area to be welded, first stress relieving the article, cooling the entire article to a welding temperature of from about 1000.degree. F. to about 1400.degree. F., welding a preselected region in an inert atmosphere at the welding temperature, and second stress relieving the article. Welding is preferably accomplished by striking an arc in the preselected region so as to locally melt the alloy in the preselected region, providing a filler metal having the same composition as the gamma titanium aluminide alloy of the article, and feeding the filler metal into the arc so that the filler metal is melted and fused with the article to form a weldment upon solidification.
摘要翻译： 焊接由γ钛化铝合金制成的制品，例如在表面裂纹的焊接修复中，通过从待焊接的区域去除异物，首先减轻制品的应力，将整个制品冷却至焊接温度 约1000°F至约1400°F，在焊接温度下在惰性气氛中焊接预选区域，并且使第二应力消除物品。 焊接优选通过在预选区域中击打电弧来实现，以便在预选区域中局部熔化合金，从而提供具有与制品的γ钛铝化物合金相同组成的填充金属，并将填充金属进料到电弧 使得填充金属熔化并与制品熔合以在凝固时形成焊件。
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公开(公告)号：US5630890A
公开(公告)日：1997-05-20
申请号：US380533
申请日：1995-01-30
CPC分类号： C22F1/02 , C22F1/183 , Y10S148/902
摘要： A hollow article is made by providing and diffusion bonding the opposing parts of an article made of an alpha-beta titanium alloy. Hydrogen is introduced into the surface of an internal cavity before, during, or after diffusion bonding. The article is heat treated with the hydrogen present, typically by solution treating and aging the hydrogen-containing bonded article. The result is the production of a microstructure at the internal surface of the cavity that is resistant to fatigue-crack initiation, while retaining a microstructure throughout the rest of the article that is resistant to fatigue-crack propagation. After heat treating, the hydrogen is removed from the article, and any further heat treating and other operations are completed.
摘要翻译： 通过提供和扩散粘合由α-β钛合金制成的制品的相对部分制成中空制品。 在扩散接合之前，期间或之后，将氢气引入内腔的表面。 该物品通过存在的氢进行热处理，通常通过溶解处理和老化含氢粘合制品。 结果是在空腔的内表面上产生耐疲劳裂纹引发的微观结构，同时保留了耐疲劳裂纹扩展的整个制品的微观结构。 热处理后，从制品中除去氢，完成任何进一步的热处理和其它操作。
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公开(公告)号：US06539620B1
公开(公告)日：2003-04-01
申请号：US09487282
申请日：2000-01-19
申请人： Russell W. Smashey
发明人： Russell W. Smashey
IPC分类号： H01R4300
CPC分类号： C22F1/10 , B21C37/047 , B23K35/3033 , B23K35/3046 , B23K35/40 , Y10T29/49117 , Y10T29/49194 , Y10T29/49801 , Y10T29/4981
摘要： A method for producing superalloy weld wire and weld wire having fewer inclusions, and specifically fewer hafnia inclusions, and superalloy weld wire, particularly hafnium-containing superalloy weld wire, produced by this method. The method includes producing directionally solidified cast rod in a diameter of less than about ½ inch. The rod preferably is produced by investment casting or by continuous casting. The directional solidification process results in rod having inclusions such as oxides and dirt segregated into portions of the casting where they are easily removed. The cast rod can then be formed into semi-finished weld wire using a single extrusion step, followed by grinding to the final required diameter.
摘要翻译： 通过该方法制造的具有较少的夹杂物，特别是较少的铪夹杂物和超合金焊丝，特别是含铪的超合金焊丝的超合金焊丝和焊丝的制造方法。 该方法包括生产直径小于约1/2英寸的定向凝固浇铸棒。 棒优选通过熔模铸造或连续铸造制造。 定向凝固过程导致棒具有诸如氧化物和污垢的夹杂物分离到铸件的容易去除的部分中。 然后可以使用单个挤出步骤将铸造棒形成为半成品焊丝，然后研磨至最终所需直径。
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公开(公告)号：US5753053A
公开(公告)日：1998-05-19
申请号：US823595
申请日：1997-03-25
CPC分类号： C22F1/02 , C22F1/183 , Y10S148/902
摘要： A hollow article is made by providing and diffusion bonding the opposing parts of an article made of an alpha-beta titanium alloy. Hydrogen is introduced into the surface of an internal cavity before, during, or after diffusion bonding. The article is heat treated with the hydrogen present, typically by solution treating and aging the hydrogen-containing bonded article. The result is the production of a microstructure at the internal surface of the cavity that is resistant to fatigue-crack initiation, while retaining a microstructure throughout the rest of the article that is resistant to fatigue-crack propagation. After heat treating, the hydrogen Is removed from the article, and any further heat treating and other operations are completed.
摘要翻译： 通过提供和扩散粘合由α-β钛合金制成的制品的相对部分制成中空制品。 在扩散接合之前，期间或之后，将氢气引入内腔的表面。 该物品通过存在的氢进行热处理，通常通过溶解处理和老化含氢粘合制品。 结果是在空腔的内表面上产生耐疲劳裂纹引发的微观结构，同时保留了耐疲劳裂纹扩展的整个制品的微观结构。 热处理后，从制品中除去氢，完成任何进一步的热处理和其它操作。
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公开(公告)号：US4574451A
公开(公告)日：1986-03-11
申请号：US452242
申请日：1982-12-22
CPC分类号： B23P15/04 , F01D5/18 , F01D5/187 , Y02T50/676 , Y10T29/4981 , Y10T29/49988
摘要： A fluid-cooled article, such as a turbomachinery blading member, is provided with a fluid passage by a method of depositing a first material on a work surface of a mandrel by low pressure plasma deposition. A first member thus generated is separated from the mandrel. In one form, an inner surface of the first member is provided with a surface groove. After depositing a sacrificial material in the groove, a cover material is applied to entrap the sacrificial material. Removal of the sacrificial material provides the fluid passage.
摘要翻译： 通过低压等离子体沉积在芯棒的工作表面上沉积第一材料的方法，流体冷却的制品例如涡轮机械叶片构件设有流体通道。 如此产生的第一构件与心轴分离。 在一种形式中，第一构件的内表面设置有表面凹槽。 在凹槽中沉积牺牲材料之后，施加覆盖材料以捕获牺牲材料。 去除牺牲材料提供流体通道。
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公开(公告)号：US4115112A
公开(公告)日：1978-09-19
申请号：US817638
申请日：1977-07-21
摘要： A commercially available cobalt-base alloy, sometimes called X-40 alloy, and having a relatively high carbon content, is improved to make it useful in the directional solidification casting process through the addition of a particular amount of aluminum sufficient to avoid severe reaction with casting cores and molds which include silica, without detrimental effect on mechanical properties.
摘要翻译： 改进了市售的钴基合金，有时称为X-40合金，并且具有相对较高的碳含量，使其在定向凝固铸造工艺中有用，通过加入特定量的足以避免与 铸造芯和模具，其包括二氧化硅，对机械性能没有不利影响。
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