Metal additive manufacturingMaterials
For LMD, SLM / LPBF and laser cladding, material selection follows the failure mode, substrate, geometry, temperature, corrosion media, wear mechanism and inspection plan.
Material families
This overview keeps the materials page calm. The first decision is not the powder name; it is the part duty and the evidence that will be needed later.
Relevant for repair, build-up, wear questions and tooling applications when weldability, heat treatment and crack risk are reviewed together.
Relevant for temperature, corrosion and dissimilar-material questions when substrate, dilution, finishing and inspection fit the function.
Relevant for wear and surface-function work when hardness, toughness, bonding and finishing are evaluated together.
Relevant for thermal or electrical-duty applications when absorption, temperature control and layer uniformity are clarified early.
Material capability matrix
The names below show material experience and buying-language coverage. They are not a promise that every grade is stocked, qualified or suitable for every substrate. Exact laser spot size, powder feed, travel speed, layer strategy and heat route stay project-specific.
| Family | Named examples | Typical use discussion | Best-fit route |
|---|---|---|---|
| Fe-based, stainless and specialty steel | 316L, 4116, H500, PH-14, FeCrV15Ni6 | General stainless build-up, steel repair, selected wear surfaces, corrosion-aware industrial parts and cost-sensitive routes. | LMD build-up, repair, modification, selected cladding and SLM / LPBF review where geometry justifies it. |
| Ni-based and Inconel-class | Inconel 625, Inconel 718, C276, C282, C939, Ni-based alloys | Corrosion, oxidation, heat exposure, high-temperature strength, demanding wear-corrosion combinations and multi-material thermal designs. | LMD manufacturing, cladding, multi-material LMD and compact SLM / LPBF parts after alloy and inspection review. |
| Co-based and tribology | Triballoy 400, Triballoy 800, S6, S12 | Sliding contact, galling, hot wear, valve-seat-type surfaces and tribological performance where cost and machinability are acceptable. | Laser cladding, local surface reinforcement and repair-plus-protect routes. |
| Copper and conductivity | Cu 99.95%, CuNi3Si and copper-alloy coating discussions | Conductivity, cooling function, copper-part repair, copper-substrate coating and compatible material transitions. | Project-specific LMD / cladding review with heat management, monitoring and substrate compatibility planning. |
| Carbide and hard-particle routes | Tungsten-carbide-containing systems, WSC and other hard-particle coating routes | Severe abrasion, cutting or drilling surfaces, mining and tooling wear, and cases where hardness must be balanced against toughness. | Laser cladding and LMD build-and-coat workflows with microscopy, hardness context and crack-risk review where required. |
Problem-to-material routes
These cards connect material families to practical application and evidence routes. The images come from the linked case studies or their assigned proof media.
Repair
Steel build-up, tooth profile, machining allowance and inspection planning for local tooth or spline damage.
Open proof path
Tooling
Heat, wear, toughness, crack risk and post-machining define the material route for local tooling repair.
Open proof path
Cladding
Corrosion, scoring, seal lands, final grinding and tribological function point toward the coating route.
Open proof path
Process contact
Corrosion, erosion, cavitation and process media decide whether local LMD cladding is worth reviewing.
Open proof path
Cylindrical surfaces
Abrasion, diameter recovery, heat input, coating uniformity and final grinding need one material route.
Open proof path
Research
Multi-material and validation examples show how evidence can support a material decision.
Open proof pathMaterial proof
That is why the materials page needs clear boundaries: alloy family, substrate, function, heat input, procurement, finishing and inspection decide together.
Powder and alloy families
Copper-substrate proof
Copper alloys create different absorption, temperature-control, dilution and coating-uniformity questions than many steels. This proof is a useful entry point for temperature-managed coating decisions.
Copper substrate
Tungsten-carbide-containing proof
Tungsten-carbide-containing coatings can be relevant for abrasive wear. The route still depends on matrix, substrate, heat input, finishing and inspection target.
Microstructure and wear
Valve seat ring proof
The valve seat ring proof shows preheating and LMD coating for a demanding functional surface. The material stays project-specific; the public lesson is the process chain.
Hard functional surface
High-impact tooling proof
For high-impact tooling surfaces, hardness alone is not enough. Local reinforcement, toughness, bond, finish, crack condition and repair-versus-replacement logic matter together.
Impact tooling
Multi-material proof
The nozzle case is a strong signal for material zoning, thin-wall LMD planning and long build stability. It does not replace part-specific release for other geometries.
Material zoning
SLM / LPBF design logic
SLM / LPBF is strong when compact geometry, fine detail or internal channels carry the value. It is less suited when the question is local repair, large build envelopes or surface-only coating.
SLM / LPBF
Selection map
These cards lead to the relevant detail pages. Each route starts with the part problem and ends with the evidence and finishing needed for a reliable decision.
01 / Material direction
Sort wear, corrosion, temperature, substrate and inspection needs before locking onto an alloy family.
Open
02 / Alloy families
The guide connects substrate, dilution, crack risk, hardness, toughness and finishing to the technical decision.
Open
03 / SLM / LPBF
SLM tends to fit when compact detail, internal channels, build orientation and post-processing carry the value.
Open
04 / Evidence route
Microstructure, layer condition, geometry, surface and documentation need to match the part function.
Open