| Explosion Bonding | A controlled detonation drives the cladding plate against the backing steel at high velocity. The impact creates a metallurgical bond, usually with a characteristic wavy interface. | Stainless steel, nickel alloys, titanium, zirconium, copper, and other corrosion- or heat-resistant alloys. | Commonly about 1.5–25 mm for the cladding layer, depending on the material and project design. | Strong solid-state metallurgical bond with a narrow heat-affected region. | Joins combinations that are difficult to weld directly; preserves much of the cladding alloy’s original properties. | Pressure vessels, heat exchangers, reactors, storage tanks, and chemical-processing equipment. Requires strict safety controls and post-bond inspection. |
| Roll Bonding | Clean metal surfaces are stacked, heated when appropriate, and passed through rolling mills under high pressure. Plastic deformation brings the surfaces into intimate contact and promotes diffusion bonding. | Stainless steel, aluminum, nickel alloys, titanium, and selected carbon or low-alloy steel combinations. | Often approximately 0.5–10 mm, although thicker or thinner layers can be produced for specialized designs. | Continuous or broad-area solid-state bond with a relatively uniform interface. | Suitable for large production volumes and controlled thickness ratios; can provide a smooth finished surface. | Heat-transfer equipment, cookware, transition materials, and corrosion-resistant sheet products. Surface preparation and rolling reduction are critical. |
| Weld Overlay Cladding | A corrosion-, wear-, or heat-resistant alloy is deposited onto the backing plate using processes such as submerged arc welding, strip cladding, gas metal arc welding, or laser cladding. | Stainless steels, nickel-based alloys, cobalt-based alloys, chromium-carbide systems, and other hardfacing materials. | Typically about 2–12 mm per deposited layer system; multiple layers may be used. | Fusion weld bond with dilution between the backing plate and deposited alloy. | Can be applied to large or complex surfaces and repaired locally; flexible for wear and corrosion protection. | Pipes, valves, boiler components, mining equipment, and pressure-vessel surfaces. Heat input, dilution, distortion, and residual stress must be controlled. |
| Hot Isostatic Pressing (HIP) | Prepared metal layers or powder-filled capsules are subjected to high temperature and uniform gas pressure, causing diffusion bonding and consolidation. | Nickel alloys, stainless steels, tool steels, titanium alloys, and other engineered metal combinations. | Commonly designed from roughly 1 mm to several tens of millimeters, depending on the component and process route. | Diffusion bond with minimal macroscopic interface discontinuity when surfaces are properly prepared. | Produces highly uniform consolidation and can join complex or dissimilar material systems with low porosity. | Aerospace, power generation, tooling, and high-performance engineering components. Equipment size, cycle time, and cost can limit large plate production. |
| Diffusion Bonding | Precisely prepared surfaces are held together under pressure at elevated temperature for a controlled period. Atoms diffuse across the interface without melting the primary materials. | Stainless steels, titanium alloys, nickel alloys, copper, and selected dissimilar-metal combinations. | Often approximately 0.1–10 mm for a bonded layer or sheet, depending on the design and equipment. | Solid-state bond with very little distortion and no conventional weld pool. | Good dimensional accuracy and low thermal distortion; useful for sensitive material combinations. | Specialized heat exchangers, laminated structures, and precision components. It requires exceptionally clean, flat surfaces and carefully controlled temperature and pressure. |
