Cladded amorphous metal products

Abstract

An embodiment relates to a cladded composite comprising a cladding layer of a bulk metallic glass and a substrate; wherein the bulk metallic glass comprises approximately 0% crystallinity, approximately 0% porosity, less than 50 MPa thermal stress, approximately 0% distortion, approximately 0 inch heat affected zone, approximately 0% dilution, and a strength of about 2,000-3,500 MPa.

What is claimed is: 
     
         1 . A cladded composite comprising a substrate and a cladding layer comprising a bulk metallic glass on the substrate; wherein the bulk metallic glass comprises 0-10% crystallinity, no porosity, less than 50 MPa thermal stress, no distortion, no heat affected zone, no dilution, and a bond strength of about 2,000-3,500 MPa;
 wherein the bulk metallic glass is a Ni based alloy; wherein the substrate comprises steel, aluminum or titanium.   
     
     
         2 . The cladded composite of  claim 1 , wherein the Ni based alloy comprises Ni more than 90% wt. 
     
     
         3 . The cladded composite of  claim 1 , wherein the cladding layer comprises a foil having a foil thickness of about 20-300 μm and the cladding layer has a thickness of about 0.02 mm to 5 mm. 
     
     
         4 . The cladded composite of  claim 3 , wherein the cladding layer comprises multiple sheets of the foil. 
     
     
         5 . The cladded composite of  claim 1 , wherein the bulk metallic glass comprises no crystallinity and no thermal stress. 
     
     
         6 . The cladded composite of  claim 1 , wherein the cladded composite comprises a bond layer between the substrate and the cladding layer. 
     
     
         7 . The cladded composite of  claim 1 , further comprising an interlayer, wherein the interlayer and the substrate has a disjoint crystal of less than 1 micron in size. 
     
     
         8 . The cladded composite of  claim 1 , wherein the Ni based alloy comprises Si. 
     
     
         9 . The cladded composite of  claim 1 , wherein the Ni based alloy comprises phosphorus. 
     
     
         10 . A method comprising: modificating a surface of a bulk metallic glass to remove an oxide layer and cladding the bulk metallic glass on a substrate; wherein the cladding process is done by an ultrasonic additive manufacture process to form a cladded composite;
 wherein the cladding composite comprising a cladding layer comprising the bulk metallic glass on the substrate;   wherein the bulk metallic glass comprises 0-10% crystallinity, no porosity, less than 50 MPa thermal stress, no distortion, no heat affected zone, no dilution, and a bond strength of about 2,000-3,500 MPa.   
     
     
         11 . The method of  claim 10 , wherein the bulk metallic glass comprises an alloy selected from a group consisting of Zr, Cu, Ni, Al, Ti, Hf, Si, B, C, P, Co, Fe, Mo, or combinations thereof. 
     
     
         12 . The method of  claim 10 , wherein the substrate comprises steel, aluminum or titanium. 
     
     
         13 . The method of  claim 10 , wherein the cladding layer has a thickness of about 0.02 mm to 5 mm. 
     
     
         14 . The method of claim of  claim 13 , wherein the cladding layer has a thickness of about 0.1 mm to 0.4 mm. 
     
     
         15 . The method of  claim 10 , wherein the cladded composite comprises a bond layer between the substrate and the cladding layer. 
     
     
         16 . The method of  claim 10 , wherein the cladded composite further comprising an interlayer, wherein the interlayer and the substrate has a disjoint crystal of less than 1 micron in size. 
     
     
         17 . The method of  claim 10 , wherein the bulk metallic glass comprises no crystallinity and no thermal stress. 
     
     
         18 . A cladded composite comprising a substrate and a cladding layer comprising a bulk metallic glass on the substrate; wherein the bulk metallic glass comprises 0-10% crystallinity, no porosity, less than 50 MPa thermal stress, no distortion, no heat affected zone, no dilution, and a bond strength of about 2,000-3,500 MPa;
 wherein the bulk metallic glass is a Co, Fe based alloy; wherein the substrate comprises steel, aluminum or titanium.   
     
     
         19 . The cladded composite of  claim 18 , wherein the cladding layer comprises a foil having a foil thickness of about 20-300 μm. 
     
     
         20 . The cladded composite of  claim 18 , wherein the cladding layer has a thickness of about 0.02 mm to 5 mm.