CN102649189A - 构件和加工构件的方法 - Google Patents
构件和加工构件的方法 Download PDFInfo
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- WPBNNNQJVZRUHP-UHFFFAOYSA-L manganese(2+);methyl n-[[2-(methoxycarbonylcarbamothioylamino)phenyl]carbamothioyl]carbamate;n-[2-(sulfidocarbothioylamino)ethyl]carbamodithioate Chemical compound [Mn+2].[S-]C(=S)NCCNC([S-])=S.COC(=O)NC(=S)NC1=CC=CC=C1NC(=S)NC(=O)OC WPBNNNQJVZRUHP-UHFFFAOYSA-L 0.000 description 1
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Abstract
公开了一种构件和一种加工构件的方法。方法包括提供具有特征部的基底金属,移除特征部以形成加工区域,施加第一层到加工区域,并且施加第二层到第一层。基底金属、第一层和第二层各具有预定的热膨胀系数、屈服强度和伸长率。加工构件包括施加到基底金属的加工区域的第一层和施加到第一层的第二层。
Description
技术领域
本发明大体涉及加工燃气涡轮构件的方法和燃气涡轮构件。更尤其地,本发明涉及加工燃气涡轮隔板的方法和加工的燃气涡轮隔板。
背景技术
燃气涡轮构件经受在热、机械和化学方面不利的环境。例如,在燃气涡轮的压缩器部分,大气空气压缩到10-25倍的大气压力,并且在该过程中绝热地加热到800℉-1250℉(427℃-677℃)。该加热并且压缩的空气引导进燃烧器,在燃烧器中它与燃料混合。燃料点燃,并且燃烧过程将气体加热到非常高的温度,超过3000℉(1650℃)。这些热气体流过涡轮和排气系统,在涡轮中固定到旋转涡轮盘的翼型抽取能量以驱动涡轮的风扇和压缩器,在排气系统中气体提供足够的能量以旋转发电机转子来发电。为改进涡轮的操作的效率,燃烧温度已经提高。
在本领域中将期望加工的燃气涡轮构件和通过能够以更高的温度操作的不具有在焊缝内和/或交界面内的裂纹的焊接来加工燃气涡轮构件的方法。
发明内容
根据示范实施例,加工构件的方法包括:提供具有特征部的基底金属,基底金属具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;移除特征部以形成加工区域;施加第一层到加工区域,第一层具有第一填充物,第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;和施加第二层到第一层,第二层具有第二填充物,第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率。第一填充物热膨胀系数小于基底金属热膨胀系数和第二填充物热膨胀系数。第一填充物屈服强度大于基底金属屈服强度并且小于第二填充物屈服强度。第一填充物伸长率大于基底金属伸长率并且小于第二填充物伸长率。
根据另一示范实施例,加工构件的方法包括:提供具有特征部的基底金属,基底金属具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;移除特征部以形成加工区域;施加第一层到加工区域,第一层具有第一填充物,第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;和施加第二层到第一层,第二层具有第二填充物,第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率。第一填充物组分包括按照重量计算处于大约1.0%与大约1.5%之间的碳、处于大约42.5%与大约47.5%之间的铁和余量镍,并且其中,第二填充物组分包括按照重量计算直到大约0.1%的碳、大约20%到大约23%的铬、大约5.0%的铁、大约1.0%的钴、处于大约8.0%与大约10.0%之间的钼、大约20%与大约23%之间的铬和余量镍。
根据另一示范实施例,加工构件包括:基底金属,其具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;加工区域;施加到加工区域的第一层,第一层具有第一填充物,第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;和施加到第一层的第二层,第二层具有第二填充物,第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率。第一填充物热膨胀系数小于基底金属热膨胀系数和第二填充物热膨胀系数。第一填充物屈服强度大于基底金属屈服强度并且小于第二填充物屈服强度。第一填充物伸长率大于基底金属伸长率并且小于第二填充物伸长率。
本发明的其它特征和优点将从结合附图的优选实施例的以下更详细的描述中显而易见,附图以举例的方式示出了本发明的原理。
附图说明
图1示意性地示出了根据本公开的实施例的加工构件。
只要可能,相同附图标记将贯穿附图用于表示相同部件。
具体实施方式
提供加工构件并且提供加工具有焊缝的构件的方法,焊缝不具有在焊缝内的裂纹和/或在焊缝的交界面内的裂纹。
参考图1,示范加工构件100包括基底金属102、带有第一填充物的第一层104和带有第二填充物的第二层106。如本文中所用地,词语“层”指的是通过焊接沉积的填充物材料。加工构件100是金属构件。在一个实施例中,加工构件是诸如叶片、转子、隔板、动叶或燕尾件的燃气涡轮构件。根据示范工艺,第一层104施加到在构件100的基底金属102中的表面缺陷108(例如,空腔、裂纹、碎片、孔、裂缝或其它适当表面特征部)。第二层106然后施加在第一层104上。如将被理解地,第二层106取决于焊缝的复杂度和焊工使用的技术,可保持与基底金属102分离和/或可局部接触基底金属102。
基底金属102包括基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率。在加工构件100的示范实施例中,第一层104定位成接近基底金属102。第一层104具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率。第二层106定位成接近第一层104。第二层106具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率。
第一层104和第二层106基于一个或者多个预定性质选定。例如,在一个实施例中,第一层104和第二层106响应于基底金属组分、基底金属热膨胀系数、基底金属屈服强度、基底金属伸长率和它们的组合选定。例如,在一个实施例中,为了制备第一层104,选定第一填充物金属使得第一填充物组分包括比用于制备第二层106的第二填充物更少的碳含量、更少的铁含量和更高的镍含量。在另一个实施例中,为制备第一层104和/或第二层106,选定第一填充物和/或第二填充物,使得第一填充物热膨胀系数低于基底金属热膨胀系数和第二填充物热膨胀系数。在另一个实施例中,为制备第一层104和/或第二层106,选定第一填充物和/或第二填充物,使得第二填充物屈服强度大于基底金属屈服强度和第一填充物屈服强度。
基于基底金属102与第一层104和/或第二层106之间的特定可辨认并且可量化的关系和/或差异来选定第一填充物来制备第一层104和/或选定第二填充物来制备第二层106。例如,在一个实施例中,选定第一填充物和/或第二填充物,使得第一填充物和/或第二填充物相比于基底金属102的热膨胀范围中的差异是热膨胀的预定差异。在该实施例中,第一填充物热膨胀系数小于基底金属热膨胀系数,并且第二填充物热膨胀系数大于第一填充物热膨胀系数。
在一个实施例中,制备第一层104的第一填充物与基底金属102之间的热膨胀系数的预定差异处于大约7.0μm/m·K与大约8.0μm/m·K(即,基底金属热膨胀系数的值减去第一填充物热膨胀系数的值)之间、处于6.0μm/m·K与大约9.0μm/m·K之间、处于5.0μm/m·K与大约10.0μm/m·K之间、处于大约6.5μm/m·K、处于大约7.0μm/m·K、处于大约7.5μm/m·K或者处于大约8.0μm/m·K。此外或者可选地,制备第一层104的第一填充物具有比基底金属102低大约65%与大约75%(即,基底金属热膨胀系数的值减去第一填充物热膨胀系数的值并且都除以基底金属热膨胀系数的值)之间的热膨胀系数。
在一个实施例中,制备第一层104的第一填充物与第二层106之间的热膨胀系数的预定差异处于大约2.3μm/m·K与大约3.3μm/m·K(即,第二填充物热膨胀系数的值减去第一填充物热膨胀系数的值)之间、处于大约1.3μm/m·K与大约4.3μm/m·K之间、处于大约1.8μm/m·K与大约3.8μm/m·K之间、处于大约2.3μm/m·K、处于大约2.6μm/m·K或者处于大约2.9μm/m·K。此外或可选地,制备第一层104的第一填充物具有比第二层106低大约18%与大约26%(即,第二填充物热膨胀系数的值减去第一填充物热膨胀系数的值并且都除以第二填充物热膨胀系数的值)之间的热膨胀系数。
在一个实施例中,基底金属102具有大约17.6μm/m·K的热膨胀系数,制备第一层104的第一填充物具有大约12.8μm/m·K的热膨胀系数,制备第二层106的第二填充物具有大约10.2μm/m·K的热膨胀系数,以及它们的组合。
在一个实施例中,选定制备第一层104的第一填充物和/或制备第二层106的第二填充物,使得第一层104和/或第二层106相比于基底金属102的伸长率的差异是伸长率的预定差异。如本文中所用地,词语“伸长率”指的是在恒温下的抗拉强度试验期间的材料延伸。例如,伸长率通过延伸金属并且比较延伸之前的金属的长度与金属断裂时金属的延伸长度来测量。在该实施例中,第一填充物伸长率稍微高于或者低于基底金属伸长率并且第二填充物伸长率大于第一填充物伸长率。
在一个实施例中,第一层104与基底金属102之间的伸长率的预定差异处于大约32%的值与大约36%的值(即,第一填充物伸长率的值减去基底金属伸长率的值)之间、处于大约34.5%(即,第一填充物伸长率的值减去基底金属伸长率的值)的值、处于大约75%与大约85%(即,第一填充物伸长率的值减去基底金属伸长率的值并且都除以第一填充物伸长率的值)的比较范围之间、和/或处于大约81%(即,第一填充物伸长率的值减去基底金属伸长率的值并且都除以第一填充物伸长率的值)。
在一个实施例中,制备第二层106的第二填充物与制备第一层104的第一填充物之间的伸长率的预定差异处于大约29.5%的值与大约36.5%的值(即,第二填充物伸长率的值减去第一填充物伸长率的值)之间、处于大约33%的值(即,第二填充物伸长率的值减去第一填充物伸长率的值)、或者处于大约69.5%与大约86%(即,第二填充物伸长率的值减去第一填充物伸长率的值并且都除以第二填充物伸长率的值)的比较范围之间。
在一个实施例中,基底金属102具有大约8.0%的伸长率,制备第一层104的第一填充物具有处于大约6%与大约13%之间的伸长率,并且制备第二层106的第二填充物具有大约42.5%的伸长率。
在一个实施例中,选定制备第一层104的第一填充物和/或制备第二层106的第二填充物,使得第一填充物和/或第二填充物相比于基底金属102的屈服强度的差异是屈服强度的预定差异。如本文中所用地,词语“屈服强度”指的是金属对材料开始塑性变形的应力的抵抗。在该实施例中,第一填充物屈服强度大于基底金属屈服强度,第二填充物屈服强度大于第一填充物屈服强度和基底金属屈服强度。
在一个实施例中,在制备第一层104的第一填充物与基底金属102之间的屈服强度的预定差异是处于大约15Ksi与大约22Ksi(即,第一填充物屈服强度的值减去基底金属屈服强度的值)之间,处于大约18.5Ksi(即,第一填充物屈服强度的值减去基底金属屈服强度的值)、处于大约50%与大约73%(即,第一填充物屈服强度的值减去基底金属屈服强度的值并且都除以基底金属屈服强度的值)之间,和/或处于大约61.5%(即,基底金属屈服强度的值减去基底金属屈服强度的值并且都除以基底金属屈服强度的值)。
在一个实施例中,在制备第二层106的第二填充物与制备第一层104的第一填充物之间的屈服强度的预定差异处于大约23Ksi与大约30Ksi(即,第二填充物屈服强度的值减去第一填充物屈服强度的值)之间、处于大约26.5Ksi(即,第二填充物屈服强度的值减去第一填充物屈服强度的值)、处于大约30%与大约40%(即,第二填充物屈服强度的值减去第一填充物屈服强度的值并且都除以第二填充物屈服强度的值)之间,和/或处于大约35%(即,第二填充物屈服强度的值减去第一填充物屈服强度的值并且都除以第二填充物屈服强度的值)。
在一个实施例中,基底金属102具有大约30Ksi的屈服强度,制备第一层104的第一填充物具有大约45Ksi到大约52Ksi的屈服强度,和/或制备第二层106的第二填充物具有大约75Ksi的屈服强度。
在一个实施例中,基底金属组分是镍-抗蚀铸造型D-2(nickel-resistcast type D-2),其在如下组分范围内,即按重量计算直到大约3.0%的碳、大约1.75%到大约3.00%的硅、大约0.70%到大约1.0%的锰、大约1.75%到大约2.5%的铬、大约73.5%的铁和余量镍(例如,大约18%到大约22%的镍)。镍-抗蚀铸铁型D-2提供对直到大约1400℉(大约760℃)的温度的腐蚀、侵蚀和摩擦磨损的抵抗。
在一个实施例中,第一填充物组分按重量计算处于大约1.0%与大约1.5%之间的碳,处于大约50%与大约55%之间的镍,并且处于大约42.5%与大约47.5%之间的铁。在又一实施例中,组分按照重量计算大约1.2%的碳、大约53%的镍与大约45.0%的铁。
在一个实施例中,第二填充物组分具有如下组分范围,即直到大约0.1%的碳、大约20%到大约23%的铬、大约5.0%的铁、大约1.0%的钴、处于大约8.0%与大约10.0%之间的钼、处于大约20%与大约23%之间的铬和余量镍。
在一个实施例中,基底金属组分和第一填充物组分包括大约相同的碳含量和镍含量,第一填充物热膨胀系数小于基底金属热膨胀系数和第二填充物热膨胀系数,第一填充物屈服强度大于基底金属屈服强度,但小于第二填充物屈服强度,并且第一填充物伸长率大于基底金属伸长率和第二填充物伸长率。
虽然本发明已经参考优选实施例进行了描述,但是本领域技术人员将明白可做出各种改变并且可用等价物替换其元件而不脱离本发明的范围。此外,可做出许多修改以使特定情形或材料适合于本发明的示教而不脱离其基本范围。由此,意图本发明不受限于作为意图用于执行本发明的最佳模式公开的特定实施例,而是本发明将包括在所附权利要求的范围内的全部实施例。
Claims (20)
1.一种加工构件的方法,所述方法包括:
提供具有特征部的基底金属,所述基底金属具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;
移除所述特征部以形成加工区域;
施加第一层到所述加工区域,所述第一层具有第一填充物,所述第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;并且
施加第二层到所述第一层,所述第二层具有第二填充物,所述第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率;
其中,所述第一填充物热膨胀系数小于所述基底金属热膨胀系数和所述第二填充物热膨胀系数;
其中,所述第一填充物屈服强度大于所述基底金属屈服强度并且小于所述第二填充物屈服强度;并且
其中,所述第一填充物伸长率大于所述基底金属伸长率并且小于所述第二填充物伸长率。
2.根据权利要求1所述的方法,其特征在于,所述第一填充物热膨胀系数比所述基底金属热膨胀系数小大约5.0μm/m·K与大约10.0μm/m·K之间。
3.根据权利要求1所述的方法,其特征在于,所述第二填充物热膨胀系数比所述第一填充物热膨胀系数大大约1.3μm/m·K与大约4.3μm/m·K之间。
4.根据权利要求1所述的方法,其特征在于,所述基底金属热膨胀系数是大约17.6μm/m·K,所述第二填充物热膨胀系数是大约10.2μm/m·K,并且所述第一填充物热膨胀系数是大约12.8μm/m·K。
5.根据权利要求1所述的方法,其特征在于,所述第一填充物伸长率比所述基底金属伸长率大大约32%与36%之间。
6.根据权利要求1所述的方法,其特征在于,所述第一填充物伸长率比所述第二填充物伸长率小大约29.5%与大约36.5%之间。
7.根据权利要求1所述的方法,其特征在于,所述基底金属具有大约8.0%的伸长率,所述第一填充物具有大约6%到大约13%的伸长率,并且所述第二填充物具有大约42.5%的伸长率。
8.根据权利要求1所述的方法,其特征在于,所述第一填充物屈服强度比所述基底金属屈服强度大大约15Ksi与大约22Ksi之间。
9.根据权利要求1所述的方法,其特征在于,所述第二填充物屈服强度比所述第一填充物屈服强度大大约23Ksi到大约30Ksi。
10.根据权利要求1所述的方法,其特征在于,所述基底金属屈服强度是大约30Ksi,所述第一填充物屈服强度是处于大约45Ksi与大约52Ksi之间,并且所述第二填充物屈服强度是大约75Ksi。
11.根据权利要求1所述的方法,其特征在于,所述基底金属组分和所述第一填充物组分包括大约相同的碳浓度和镍浓度。
12.根据权利要求1所述的方法,其特征在于,所述构件是从由叶片、转子、隔板和动叶组成的群中选定的燃气涡轮构件。
13.根据权利要求1所述的方法,其特征在于,所述第一填充物组分包括按照重量计算处于大约1.0%与大约1.5%之间的碳、处于大约42.5%与大约47.5%之间的铁和余量镍。
14.根据权利要求1所述的方法,其特征在于,所述第二填充物组分包括按照重量计算直到大约0.1%的碳、大约20%到大约23%的铬、大约5.0%的铁、大约1.0%的钴、处于大约8.0%与大约10.0%之间的钼、处于大约20%与大约23%之间的铬和余量镍。
15.根据权利要求1所述的方法,其特征在于,所述焊接工艺从由气体保护钨极电弧焊、气体保护金属极电弧焊、保护金属极电弧焊、药芯焊丝电弧焊、埋弧焊和它们的组合组成的工艺的群中选定。
16.一种加工构件的方法,所述方法包括:
提供具有特征部的基底金属,所述基底金属具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;
移除所述特征部以形成加工区域;
施加第一层到所述加工区域,所述第一层具有第一填充物,所述第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;并且
施加第二层到所述第一层,所述第二层具有第二填充物,所述第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率;
其中,所述第一填充物组分包括按照重量计算处于大约1.0%与大约1.5%之间的碳、处于大约42.5%与大约47.5%之间的铁和余量镍;并且
其中,所述第二填充物组分包括按照重量计算直到大约0.1%的碳、大约20%到大约23%的铬、大约5.0%的铁、大约1.0%的钴、处于大约8.0%与大约10.0%之间的钼、处于大约20%与大约23%之间的铬和余量镍。
17.一种加工构件,包括:
基底金属,其具有基底金属组分、基底金属热膨胀系数、基底金属屈服强度和基底金属伸长率;
加工区域;
施加到所述加工区域的第一层,所述第一层具有第一填充物,所述第一填充物具有第一填充物组分、第一填充物热膨胀系数、第一填充物屈服强度和第一填充物伸长率;和
施加到所述第一层的第二层,所述第二层具有第二填充物,所述第二填充物具有第二填充物组分、第二填充物热膨胀系数、第二填充物屈服强度和第二填充物伸长率;
其中,所述第一填充物热膨胀系数小于所述基底金属热膨胀系数和所述第二填充物热膨胀系数;
其中,所述第一填充物屈服强度大于所述基底金属屈服强度并且小于所述第二填充物屈服强度;并且
其中,所述第一填充物伸长率大于所述基底金属伸长率并且小于所述第二填充物伸长率。
18.根据权利要求17所述的构件,其特征在于,所述构件是从由叶片、转子、隔板和动叶组成的群中选定的燃气涡轮构件。
19.根据权利要求17所述的构件,其特征在于,所述第二填充物热膨胀系数比所述第一填充物热膨胀系数大大约1.3μm/m·K与大约4.3μm/m·K之间。
20.根据权利要求17所述的构件,其特征在于,所述第一填充物伸长率比所述第二填充物伸长率小大约29.5%与大约36.5%之间。
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EP2492373A1 (en) | 2012-08-29 |
RU2012106764A (ru) | 2013-08-27 |
CN102649189B (zh) | 2015-11-25 |
RU2606285C2 (ru) | 2017-01-10 |
EP2492373B1 (en) | 2019-09-11 |
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