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US 8,025,983 B2Granted
Joining method between Fe-based steels and Ti/Ti-based alloys having joint strength higher than those of base metals by using interlayers and the joints produced using the method
OwnerMin Ku Lee, Jung Gu Lee +2inventors
InventorsMin Ku Lee, Jung Gu Lee, Jin-Ju Park, Chang-Kyu Rhee
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Abstract
A joining method between Fe-based steel and Ti/Ti-based alloys having a joint strength higher than those of base metals by using interlayers. The production of intermetallic compounds at a joint portion between Fe-based steel and Ti/Ti-based alloys can be prevented using interlayers, and strong interface diffusion bonding can be formed at interfaces between interlayers, thereby producing a high-strength joint. Accordingly, the present disclosure can be used to develop high-strength, high-functional advanced composite materials.
Claims10
A joining method comprising:
- joining Fe-based steel and Ti/Ti-based alloys by inserting interlayers and a titanium- or zirconium-based filler alloy between Fe-based steel and Ti/Ti-based alloy base metals;
- and
- heating the base metals at a temperature higher than the melting point of the filler alloy and lower than those of the base metals;
- laminating the interlayers in the order of a nickel layer as a first interlayer, a chrome layer as a second interlayer, and a vanadium, molybdenum or tungsten layer as a third interlayer from the Fe-based steel alloy base metal;
- and
- inserting the filler alloy between the vanadium, molybdenum or tungsten layer and the Ti/Ti-based alloy base metal.
3 more elements
Dependencies are inferred from the claim text.