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alloy

vr.tr.alloy · thing-q37756

Let an agent handle alloys by composition, designation, properties, uses and safety.

Thing Registry Physical world and living systems PHY.MAT
Bundle → Layer → Finding → QuestionsClassifiersWhat it isWhy it existsDistinguishing featuresWhat robots and AI may and may not doMoral aspectsOwnersLinks to other meta-modelsIdentity and identifiersDirect propertiesRecognitionCapabilities and actionsHazards and failure modesStandards and interfacesContext of useSources

Bundle → Layer → Finding → Questions Filled

4 bundles · 8 layers · 8 findings · 16 questions

Identity Which alloy.

Designation

Grade.

Designation

Designation.

  1. What is the alloy designation and composition? provenance
  2. Which standard defines it? provenance

Equivalents

Cross-reference.

Equivalents

Equivalent grades.

  1. What are equivalent grades in other standards? provenance
  2. Are they truly interchangeable? boundary
Properties Performance.

Mechanical

Strength.

Mechanical

Mechanical properties.

  1. What are its strength, hardness and ductility? measurement
  2. In which temper or condition? definition

Corrosion

Resistance.

Corrosion

Corrosion resistance.

  1. How does it resist corrosion in this environment? provenance
  2. Is galvanic corrosion a risk with other metals? boundary
Safety Hazards.

Toxic elements

Lead, cadmium, mercury.

Toxic elements

Toxic elements.

  1. Does the alloy contain lead, cadmium or mercury? provenance
  2. What rules restrict its use? provenance

Fumes

Welding and soldering.

Fumes

Fumes.

  1. What fume controls are needed when welding or soldering it? provenance
  2. What does the safety data sheet say? provenance
Use Applications.

Selection

Choosing.

Selection

Alloy selection.

  1. Which alloy suits this application? action
  2. Should an engineer confirm the choice? action

Recycling

End of life.

Recycling

Recycling.

  1. How is this alloy recycled? provenance
  2. Must it be separated from other metals? boundary

Classifiers Filled

Family
Thing Registry
Category
Physical world and living systems
Entry kind
thing
Plane
PHY
Domain
PHY.MAT
Other names and narrower kinds
dental alloy, dental amalgam, fusible alloy, interstitial compound, ferrophosphorus, titanium hydride, ferronickelplatinum, kolymite, Bismuth Indium, Newton's metal, liquid metal, Queen's metal

What it is Filled

A metallic material made by combining a metal with other metals or elements, such as steel (iron and carbon), bronze, brass, solder, aluminium alloys and dental amalgam, to improve strength, corrosion resistance or other properties.

Why it exists Filled

Let an agent handle alloys by composition, designation, properties, uses and safety.

Distinguishing features Filled

  • Mixture based on a metal
  • Tailored properties
  • Standardised designations
  • Some contain hazardous elements

What robots and AI may and may not do Filled

Must not

  • Supply an alloy under a false grade or certificate.
  • Use alloys containing lead or other restricted metals in food, toys or drinking water parts.
  • Release fumes from melting or welding alloys where people can breathe them without protection.
  • Substitute a cheaper alloy in safety-critical parts without approval.

Only with a human decision

  • Approving material substitutions in structures, vehicles or medical devices.

May

  • Report an alloy's composition, grade and properties from certificates and standards.
  • Test and sort alloys for an operator that authorized it.

Moral aspects Filled

  • Wrong or fake alloys in critical parts have caused structural and aviation failures.
  • Metal fumes and dust harm workers' health.

Who is affected

  • Users of products and structures
  • Foundry and metal workers
  • Patients with metal implants

Owners Filled

Steward

The producer or supplier for what is placed on the market; the owner for each item.

Links to other meta-models Filled

parent

  • Q1924900 - registry parent class
  • Q5447188 - registry parent class

related

  • metallic material and solid solution - category
  • metal - component
  • steel - example
  • EN and ASTM standards - standards

What else AI and robots need to interact with it Filled

Identity and identifiers required Filled

  • Vercy registry: vr.tr.alloy
  • Wikidata: Q37756 (https://www.wikidata.org/wiki/Q37756)
  • UNS number: letter plus five digits unified numbering system

Direct properties required Filled

  • Density: kg/m3 - Determined from mass and volume at a stated temperature for the specified alloy composition.
  • Solidus temperature: degrees Celsius - Determined by thermal analysis as the temperature at which melting begins under specified conditions.
  • Tensile strength: MPa - Measured by tensile testing with the alloy composition, processing condition and test temperature recorded.
  • Electrical resistivity: ohm m - Determined from electrical resistance and specimen geometry at a stated temperature.

Recognition required Filled

  • Designations such as 304 stainless or 6061 aluminium
  • Colour and density
  • Pure metals are not alloys
  • Metallic solids, colours ranging from grey steel to golden brass and bronze.

Capabilities and actions required Filled

  • identify alloys by designation
  • compare mechanical properties
  • choose alloys for corrosion or temperature
  • check hazards such as lead or mercury content

Hazards and failure modes required Filled

  • Corrosion and stress cracking
  • Lead and cadmium exposure
  • Wrong alloy substitution

Standards and interfaces required Filled

  • EN 10027 steel designation
  • RoHS restrictions on lead in electronics
  • EU Mercury Regulation on dental amalgam

Context of use required Filled

  • Engineering, construction, tools, electronics, coins and medicine.
  • steels and stainless steels
  • copper alloys such as bronze and brass
  • aluminium alloys
  • solders and fusible alloys
  • dental alloys and amalgam

Sources Filled

  1. Wikidata item Q37756: alloy - identity and sense of the item
  2. Wikipedia: Alloy - general description of the item

Open questions

  • Should alloy families be separate entries?
  • How should designations be cross-referenced?
  • How should hazardous alloys be flagged?

Machine files

Card as JSON Specification Card backlog vercy.card/1

Provenance

thing registry research (pass 2) · unreviewed

Built from: models/things/publications/thing-q37756/spec.json