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1. 发明授权

US06218026B1 Lightweight high stiffness member and manufacturing method thereof 失效
标题翻译：轻型高刚性构件及其制造方法
公开(公告)号：US06218026B1
公开(公告)日：2001-04-17
申请号：US09045878
申请日：1998-03-03
申请人： Bruce Allan Ewing , Robert Anthony Ress, Jr. , James Ronald Roessler
发明人： Bruce Allan Ewing , Robert Anthony Ress, Jr. , James Ronald Roessler
IPC分类号： B22F704
CPC分类号： C23C26/00 , B22F3/1216 , B22F7/08 , B22F2999/00 , B32B15/01 , C22C14/00 , C22F1/183 , F16C3/02 , F16C2360/23 , Y10T428/12063 , B22F3/24 , B22F2202/11
摘要： A high performance hybrid member for use in applications where high stiffness, high temperature capacity and being lightweight are important. In one form of the present invention the hybrid member is formed of a titanium alloy outer portion with a gamma titanium aluminide alloy inner portion metallurgically bonded therin. The gamma titanium aluminide alloy material has a room temperature modulus of elasticity greater than the modulus of elasticity of the titanium alloy outer portion. The hybrid member has a modulus of elasticity greater than modulus of elasticity of the titanium alloy outer portion, and a density equivalent to that of the titanium outer portion. The wear resistant capability of the member can be increased at local regions by surface modification treatment such as plasma ion nitriding or by affixing at ends of the member hardened fittings. Fabrication of the hybrid member involves positioning a gamma titanium aluminide alloy core within the titanium alloy outer portion, sealing the ends of the outer portion and then hot isostatically pressing the assembly to create a metallurgical bond between the gamma titanium aluminide alloy inner portion and the titanium alloy outer portion.
摘要翻译：用于高刚度，高温度和重量轻的应用中的高性能混合构件是重要的。在本发明的一种形式中，混合构件由钛合金外部部分与γ钛铝化物合金内部部分冶金结合的加工材料形成。 γ钛化铝合金材料的室温弹性模量大于钛合金外部部分的弹性模量。混合构件的弹性模量大于钛合金外部部分的弹性模量，并且其密度等于钛外部部分的密度。通过诸如等离子体离子氮化之类的表面改性处理或通过在构件硬化配件的端部固定，可以在局部区域增加构件的耐磨性能。混合构件的制造包括在钛合金外部部分中定位γ钛化铝合金芯，密封外部部分的端部，然后热等静压压组件，以在γ钛化铝合金内部部分和钛之间形成冶金结合合金外部。

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