摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance -Ti.sub.32-48 -Al.sub.8-16 -Cr.sub.2-12,provided that the sum (Al+Cr).ltoreq.22 a/o, and where Ti is less than 37 a/o the sum (Al+Cr).ltoreq.16a/o.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要翻译:提供了具有较高密度,更强的增强铌基合金嵌入较低密度的复合结构,较低强度的铌基包层合金。 根据以下表达式,包层优选为具有铌和钛基的合金:Nbbalance-Ti32-48-Al8-16-Cr2-12,条件是总和(Al + Cr)= 22 a / o,其中 Ti小于37 a / o的总和(Al + Cr) = 16a / o。 加强件可以是较高强度,较高温度的铌基增强合金的板,片或棒的形式。 在基质和强化物中都存在相同的晶体形式,特别是体心立方晶体形式。
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance --Ti.sub.31-48 --Al.sub.8-21.The reinforcement may be in the form of strands of the higher strength, higher temperature niobium based alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance -Ti.sub.35-45 -Hf.sub.10-15.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance --Ti.sub.40-48 --Al.sub.12-22 --Hf.sub.0.5-6.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb balance-Ti32-45-Al-3-18-Hf-8-15.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the expression:Nb--Ti.sub.32-45 --Al.sub.3-18 --Hf.sub.8-15and the reinforcement may be in the form of strands of the higher strength, higher temperature niobium based alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance -Ti.sub.27-40.5 -Al.sub.4.5-10.5 -Hf.sub.1.5-5.5 V.sub.0-6 Cr.sub.4.5-8.5 Zr.sub.0-1 C.sub.0-0.5,where each metal of the metal/metal composite has a body centered cubic crystal structure, andwherein the ratio of concentrations of Ti to Nb (Ti/Nb) is greater than or equal (.gtoreq.) to 0.5, andwherein the maximum concentration of the Hf+V+Al+Cr additives is less than or equal (.ltoreq.) to the expression:16.5+5.times.Ti/Nb.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要翻译:提供了具有较高密度,更强的增强铌基合金嵌入较低密度的复合结构,较低强度的铌基包层合金。 包层优选为根据以下表达式具有铌和钛基的合金:Nbbalance-Ti27-40.5-Al4.5-10.5-Hf1.5-5.5V0-6Cr4.5-8.5Zr0-1C0-0.5,其中每种金属 的金属/金属复合体具有体心立方晶体结构,其中Ti与Nb的浓度比(Ti / Nb)大于或等于(> / =)至0.5,其中Hf的最大浓度 + V + Al + Cr添加剂与16.5 + 5×Ti / Nb的表达式小于或等于(<=)。 加强件可以是较高强度,较高温度的铌基增强合金的板,片或棒的形式。 在基质和强化物中都存在相同的晶体形式,特别是体心立方晶体形式。
摘要:
Methods of making an improved high performance x-ray system having a rotating anode therein are available. The anode includes an improved target/stem connection which reduces tube failure due to anode assembly imbalance. Methods of bonding a metallic target and a metal stem to form a composite rotating x-ray tube target are also available. In these procedures an insert of an alloy, for example, tantalum or its alloys , is placed between the target and the niobium-alloy stem and then bonded thereto to produce a composite x-ray tube target/stem having a high remelt temperature and bond strength which retains its balance throughout the manufacturing process and during x-ray tube operations.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based cladding alloy are provided. The cladding is preferably an alloy having a niobium and titanium base according to the expression:Nb.sub.balance -Ti.sub.31-48 -Al.sub.8-21.The reinforcement may be in the form of plates, sheets or rods of the higher strength, higher temperature niobium based reinforcing alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要:
Composite structures having a higher density, stronger reinforcing niobium based alloy embedded within a lower density, lower strength niobium based alloy are provided. The matrix is preferably an alloy having a niobium and titanium base according to the expression:Nb--Ti.sub.27-40.5 --Al.sub.4.5-10.5 --Hf.sub.1.5-5.5 Cr.sub.4.5-8.5 V.sub.0-6,where each metal of the metal/metal composite has a body centered cubic crystal structure, andwherein the ratio of concentrations of Ti to Nb (Ti/Nb) is greater than or equal (.gtoreq.) to 0.5, andwherein the maximum concentration of the Hf+V+Al+Cr additives is less than or equal (.ltoreq.) to the expression:16.5+(5.times.Ti/Nb),and the reinforcement may be in the form of strands of the higher strength, higher temperature niobium based alloy. The same crystal form is present in both the matrix and the reinforcement and is specifically body centered cubic crystal form.
摘要翻译:提供了具有较高密度的复合结构,嵌入较低密度的较强的增强铌基合金,较低强度的铌基合金。 该基体优选为根据以下表达式的Nb和Ti的合金:Nb-Ti27-40.5-Al4.5-10.5-Hf1.5-5.5Cr4.5-8.5V0-6,其中金属/ 金属复合体具有体心立方晶体结构,其中Ti与Nb(Ti / Nb)的浓度比例大于等于(> =)〜0.5,其中Hf + V + Al + Cr添加剂与16.5+(5 * Ti / Nb)的表达式小于或等于(<=),并且增强材料可以是较高强度,较高温度的铌基合金的股线形式。 在基质和强化物中都存在相同的晶体形式,特别是体心立方晶体形式。