公开(公告)号：US5531369A

公开(公告)日：1996-07-02

申请号：US100685

申请日：1993-08-02

申请人： Roger H. Richman ,  Osman T. Inal ,  Charles A. Zimmerly ,  Darel E. Hodgson

发明人： Roger H. Richman ,  Osman T. Inal ,  Charles A. Zimmerly ,  Darel E. Hodgson

IPC分类号： B23K20/08 ,  B32B15/01

CPC分类号： B23K20/08 ,  B32B15/013

摘要： The method comprises explosively bonding a NiTi alloy to a steel workpiece formed in the shape of at least a portion of a desired hydraulic device. The nickel content of the NiTi alloy is sufficient to place the alloy substantially completely in the .beta. phase at or about room temperature. This nickel content is typically between about 55 weight percent to about 56 weight percent. The NiTi alloy is provided in the form of a strip having a thickness of from about 0.01 inch (0.25 mm) to about 1.0 inch (25 mm). After annealing, the NiTi alloy again is heated, to increase the ductility of the NiTi alloy. The NiTi alloy typically is maintained at this temperature and explosively bonded to the workpiece to cover at least a portion of the surface area with the NiTi alloy. The present invention also includes NiTi-metal composites made according to the process of the present invention. These NiTi-metal composites are superior for resisting cavitation erosion and LDE when compared to conventional materials.

摘要翻译： 该方法包括将NiTi合金爆炸结合到形成为所需液压装置的至少一部分形状的钢工件上。 NiTi合金的镍含量足以将合金基本上完全置于β相或室温附近。 该镍含量通常为约55重量％至约56重量％。 NiTi合金以厚度为约0.01英寸（0.25mm）至约1.0英寸（25mm）的带材的形式提供。 退火后，再次加热NiTi合金，增加NiTi合金的延展性。 通常将NiTi合金保持在该温度并且与NiTi合金爆炸地结合到工件上以覆盖至少一部分表面积。 本发明还包括根据本发明的方法制备的NiTi-金属复合材料。 与常规材料相比，这些NiTi-金属复合材料具有优越的抗气蚀和LDE特性。

公开(公告)号：US5368660A

公开(公告)日：1994-11-29

申请号：US969755

申请日：1992-10-30

申请人： Nuri Durlu ,  Osman T. Inal

发明人： Nuri Durlu ,  Osman T. Inal

IPC分类号： C22C14/00

CPC分类号： C22C14/00

摘要： Two phase, TiAl.sub.2 -based, ternary aluminides of iron, nickel and other transitional metals are disclosed. A transformation from the tetragonal crystal configurations of the TI--Al system to the face-centered cubic configurations of the TI--Al--Fe and TI--Al--Ni systems is attributed to the transitional elements substituting for titanium in the face-centered cubic crystal lattice of the titanium aluminides. The resulting alloys of the composition Ti.sub.30 M.sub.4 Al.sub.66 or Ti.sub.25 M.sub.9 Al.sub.66, including Ti.sub.30 Fe.sub.4 Al.sub.66 and Ti.sub.30 Ni.sub.4 Al.sub.66, are low density, high temperature, aluminum-rich alloys possessing desirable properties, including ductility.

摘要翻译： 公开了铁，镍和其他过渡金属的两相TiAl2基三元铝化物。 从TI-Al系统的四方晶体配置到TI-Al-Fe和TI-Al-Ni系统的面心立方结构的转变归因于在面心立方晶体中替代钛的过渡元素 钛铝化物的晶格。 组成Ti30M4Al66或Ti25M9Al66（包括Ti30Fe4Al66和Ti30Ni4Al66）的合金是低密度，高温，富铝合金，具有理想的性能，包括延展性。