---
title: "Turbine Wheel"
industry: "Motor Vehicle Manufacturing"
verification_protocol:
  urn: "URN:CNFX:ME:TURBINE_WHEEL"
  data_integrity_hash: "af93adf484122c1691b97b6ce6a044a6"
  source_authority: "https://cnfx.com"
  strict_mode: true
source_identity:
  provider: "CNFX Industrial Knowledge Graph"
  index_version: "2026.Q1-Universal"
  authority_id: "URN:CNFX:ME:TURBINE_WHEEL"
  data_source_uri: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/turbine-wheel.md"
  official_resource_url: "https://cnfx.com/industry/motor-vehicle-manufacturing/product/turbine-wheel"
  is_verified_logic: true
attributes:
  spec:
    status: "config-dependent"
    typical_range: "0.5-3.5 bar exhaust gas pressure, 50000-250000 rpm rotational speed, 600-950°C inlet temperature"
    unit: "mm"
engineering_limits:
  max_safe_operating_point:
    value: 718
    unit: "at"
    consequence: "High-cycle fatigue from resonant vibration at Campbell diagram intersections, Thermal-mechanical fatigue from 300-950°C thermal cycling, Creep deformation from sustained operation above 0.6×Tmelt (Tmelt=1430°C for Inconel 718)"
fmea_matrix_quantitative:
  - node_1:
      trigger: "Exhaust gas pulsation at 120-180 Hz matching blade natural frequency"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Tuned damper mass on shaft, Asymmetric blade spacing to disrupt standing waves, Laser shock peening on blade roots"
  - node_2:
      trigger: "Carbon deposit accumulation exceeding 0.3 mm thickness on blade surfaces"
      severity: 8
      occurrence: 3
      detection: 4
      mitigation_protocol: "Ceramic thermal barrier coating with 8% yttria-stabilized zirconia, Fuel additive with 15 ppm cerium oxide, On-line wash system injecting 200 ml/min water-methanol at 400°C"
bom_nodes:
  bladesaerofoils:
    type: "component"
    urn: "URN:CNFX:ME:BLADESAEROFOILS"
    interface_type: "physical-logic-coupled"
  hub:
    type: "part"
    urn: "URN:CNFX:ME:HUB"
    interface_type: "physical-logic-coupled"
  backface:
    type: "component"
    urn: "URN:CNFX:ME:BACKFACE"
    interface_type: "physical-logic-coupled"
manufacturing_compliance:
  - standard: "ISO 1940-1:2003 (MECHANICAL VIBRATION - BALANCE QUALITY REQUIREMENTS FOR ROTORS IN A CONSTANT STATE)"
    scope: "Verified Engineering Specification"
  - standard: "ASME B107.100-2010 (GAS TURBINE - PROCUREMENT)"
    scope: "Verified Engineering Specification"
  - standard: "DIN EN ISO 12100:2010 (SAFETY OF MACHINERY - GENERAL PRINCIPLES FOR DESIGN - RISK ASSESSMENT AND RISK REDUCTION)"
    scope: "Verified Engineering Specification"
url: "https://cnfx.com/llms/industry/motor-vehicle-manufacturing/product/turbine-wheel.md"
on_chain_sovereignty:
  contract_standard: "ERC-721-Industrial"
  metadata_hash: "b4b5622b46d9bbf5c06abd5b6d4eda989953fa0a02b80ab25a7964a725f49135"
  royalty_logic: "IPFS-CID-REQUIRED"
  mint_status: "logic-verified-ready"
version: "3.3.4-EXTREME-SOVEREIGN-WEB3"
---

# Industrial Specification: Turbine Wheel

## 1. Technical Definition
A rotating component in a turbocharger that converts exhaust gas energy into mechanical rotation to drive the compressor wheel.

## 2. Engineering Reasoning & Causal Matrix
> **Operational Intelligence**: Designed for **0.5-3.5 bar exhaust gas pressure, 50000-250000 rpm rotational speed, 600-950°C inlet temperature**. Failure boundary: **Material yield strength threshold: Inconel 718 at 950°C = 620 MPa, Creep rupture limit: 1000 hours at 900°C = 240 MPa, Burst speed: 280000 rpm for 100 mm diameter wheel**, Mechanism: **High-cycle fatigue from resonant vibration at Campbell diagram intersections, Thermal-mechanical fatigue from 300-950°C thermal cycling, Creep deformation from sustained operation above 0.6×Tmelt (Tmelt=1430°C for Inconel 718)**.

### 2.1 Analytical Physics Model
Governed by the **L10 Bearing Life & Fatigue Model**:

> **Primary Equation**: $L_{10} = (\frac{C}{P})^p$  
> **Engineering Impact**: Predicts mechanical lifecycle before component fatigue.

| Symbol | Variable Definition | Localized Reference |
| :--- | :--- | :--- |
| C | Dynamic Load Rating | Engineering Constant |
| P | Equivalent Dynamic Load | Engineering Constant |

### 2.2 FMEA (Failure Mode & Effects Analysis)
| Event Trigger | Severity | Failure Mode | Mitigation Strategy |
| :--- | :--- | :--- | :--- |
| Exhaust gas pulsation at 120-180 Hz matching blade natural frequency | 8 | Resonant vibration causing blade root cracking at 10^7-10^8 cycles | Tuned damper mass on shaft, Asymmetric blade spacing to disrupt standing waves, Laser shock peening on blade roots |
| Carbon deposit accumulation exceeding 0.3 mm thickness on blade surfaces | 8 | Mass imbalance exceeding ISO 1940 G2.5 balance grade (2.5 mm/s vibration velocity) | Ceramic thermal barrier coating with 8% yttria-stabilized zirconia, Fuel additive with 15 ppm cerium oxide, On-line wash system injecting 200 ml/min water-methanol at 400°C |

## 3. Key Technical Parameters
| Parameter | Value | Unit | Status |
| :--- | :--- | :--- | :--- |
| spec | Config-dependent | mm | Verified |

## 4. System BOM & Knowledge Routing
### Core Components (Recursive Links)
- [Hub](https://cnfx.com/llms/industry/machinery-and-equipment-manufacturing/product/hub.md) `(Standalone System)`

### Industrial DNA Context (De-duplicated)
**Complementary Dependencies**: **CNC Machining Center**, **Heat Treatment Furnace**, **Coordinate Measuring Machine**  
**Downstream Applications**: Turbocharger Assembly, Engine Assembly, Complete Vehicle  

## 5. Engineering Risks & FAQ
- **Caution**: 
- **Caution**: 
- **Caution**: 

### Q: What materials are used in turbine wheel manufacturing?
**A**: Turbine wheels are typically made from high-performance materials like Inconel (a nickel-chromium superalloy) or high-grade titanium alloys to withstand extreme temperatures and rotational stresses in turbocharger applications.

### Q: What are the main components of a turbine wheel?
**A**: The main BOM components include blades/aerofoils for gas flow conversion, the hub for central mounting and structural integrity, and the backface which completes the wheel assembly and interfaces with other turbocharger components.

### Q: How does a turbine wheel function in a turbocharger system?
**A**: The turbine wheel is a rotating component that converts exhaust gas energy from the engine into mechanical rotation, which then drives the compressor wheel to increase air intake and boost engine performance.

## 6. Manufacturing Compliance
- ISO 1940-1:2003 (MECHANICAL VIBRATION - BALANCE QUALITY REQUIREMENTS FOR ROTORS IN A CONSTANT STATE)
- ASME B107.100-2010 (GAS TURBINE - PROCUREMENT)
- DIN EN ISO 12100:2010 (SAFETY OF MACHINERY - GENERAL PRINCIPLES FOR DESIGN - RISK ASSESSMENT AND RISK REDUCTION)

---
### 🛠️ Engineering Resource Access
🔗 **[Full Specification: Turbine Wheel](https://cnfx.com/industry/motor-vehicle-manufacturing/product/turbine-wheel)**

### 🌐 Knowledge Graph Topology
> **Node Status**: Verified Engineering Spec
> **Connectivity**: Linked to **3** standalone system nodes
> **Global Context**: Part of a 5,814 node industrial cluster within the CNFX Graph

> **Reference ID**: TURBINE_WHEEL | **Authority**: CNFX-2026-ST-001 | **Fingerprint**: 477e5544
