---
type: "WebPage"
title: "Analysis and testing of single-crystal superalloys (CMSX-4, rené N5, NI/CO base)"
description: "Do you need analysis and testing on single-crystal superalloys (CMSX-4, René N5, Ni/Co-based)? Why single-crystal superalloy analysis allows no room for approximation Nickel-based single-crystal superalloys (CMSX-4, René N5, PWA 1484) or cobalt-based alloys are the backbone of the harshest environments..."
resource: "https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/analysis-and-testing-of-single-crystal-superalloys-cmsx-4-rene-n5-ni-co-base/"
tags: ["EN", "pll_6a5737572db72", "Arnaud JOUDRAIN Meta"]
timestamp: "2026-07-15T08:29:43Z"
published: "2026-07-15T07:31:55Z"
language: "en"
author: "Laure Durieux"
---

# Analysis and testing of single-crystal superalloys (CMSX-4, rené N5, NI/CO base)

## Do you need analysis and testing on single-crystal superalloys (CMSX-4, René N5, Ni/Co-based)?

### Why single-crystal superalloy analysis allows no room for approximation

Nickel-based single-crystal [superalloys](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/superalloy-analysis-laboratory.md) (**CMSX-4**, **René N5**, **PWA 1484**) or cobalt-based alloys are the backbone of the harshest environments in modern industry. Designed to eliminate grain boundaries and withstand temperatures approaching their melting point, their integrity depends on chemistry and microstructure of absolute precision.

A microscopic deviation or a crystal orientation defect can reduce the service life of a turbine blade by a factor of ten.

### Our analysis and testing services for single-crystal superalloys (CMSX-4, René N5, Ni/Co-based)

We support foundries, engine manufacturers and leading [metallurgy](https://filab.fr/nos-prestations/analyse/laboratoire-analysis-metallurgiques/) players at every stage of the value chain: from raw material inspection to the expert assessment of parts after service.

#### Microstructural inspection and crystal orientation

- **Determination of crystal orientation:** precise measurement of misorientation (deviation angle relative to the growth axis) by X-ray diffraction or EBSD.
- **Phase assessment:** quantification of the volume fraction, size, and morphology of strengthening precipitates.
- **Detection of deleterious phases:** identification and quantification of topologically close-packed (TCP) phases, which are responsible for embrittling the material.
- **Foundry porosity control:** image analysis to measure the residual microporosity rate after heat treatment (HIP / CIC).

#### High-temperature creep testing

Creep is the main failure mode of these alloys. We qualify your specimens under extreme conditions:

- **Standard and accelerated creep tests:** Temperatures ranging from 750°C to over 1150°C.
- **Continuous strain monitoring:** high-precision data acquisition to plot creep curves (primary, secondary, and tertiary stages).
- **Post-creep analysis:** observation of the "rafting" phenomenon.

#### High-precision chemical analysis

| **Alloy family** | **Flagship grades** | **Typical applications** |
| --- | --- | --- |
| **Nickel-based (Generation 2 & 3)** | CMSX-4, René N5, PWA 1484, AM1 | High-pressure turbine blades, aerospace vanes |
| **Nickel-based (Generation 4+)** | MC-NG, CMSX-10 | Next-generation space and military applications |
| **Cobalt-based** | Advanced grades (Co-Al-W) | Land-based turbine components, high-corrosion-resistance areas |

## The FILAB laboratory supports manufacturers with their analysis and testing on single-crystal superalloys (CMSX-4, René N5, Ni/Co-based)

### Why use a superalloy analysis laboratory?

A **superalloy analysis** laboratory is often commissioned by [metallurgical industries](https://filab.fr/en/sectors-of-activity/laboratory-metallurgy-steelmaking-analysis.md), as it addresses issues related to the quality, performance and compliance of metal materials and products.

Superalloy analysis makes it possible to**verify the chemical composition** of alloys, thereby ensuring that the materials used meet the required standards for specific applications, thus avoiding the risk of **failure**.

In addition, these analysis help **identify and understand the causes of failures**, such as corrosion, fatigue or fractures, making it possible to improve manufacturing processes and material selection.

## Services related to superalloys

[Analysis of the chemical composition of metal alloys](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/metallic-alloy-analysis-laboratory.md)

Analysis and determination of [carbon](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-determine-carbon.md), sulfur

[Residual stress measurement](https://filab.fr/en/our-services/our-analysis-services/laboratory-material-testing/measurement-residual-stresses.md)

[Laboratory elemental analysis](https://filab.fr/nos-prestations/analyse/analysis-chimiques/laboratoire-analysis-elementaires/)

[Corrosion expertise](https://filab.fr/en/our-services/our-expertise-services/laboratory-analysis-deposit-contamination/laboratory-expertise-and-analysis-of-corrosion.md)

[Analysis of single-crystal superalloys (Nickel- or Cobalt-based): CMSX-4/René N5 for turbojet engines](https://filab.fr/nos-prestations/analyse/laboratoire-analysis-metallurgiques/analyse-superalliages-monocristallins-nickel-cobalt/)

## A dedicated analytical facility for superalloy testing and analysis

## Our technical resources

 [### Elemental analyzers

C,H,O,N,S](https://filab.fr/en/our-services/our-analysis-services/chemical-analysis-laboratory/laboratory-elemental-analysis.md)
### Elemental analyzers

Carbon, Sulfur (C/S)

### Elemental analyzers

Nitrogen, Oxygen and Hydrogen (N / O / H)

 [### Spark emission spectrometry SEO](https://filab.fr/en/our-technical-resources/laboratory-analysis-oes-alloys.md) [### ICP-AES and ICP-MS](https://filab.fr/en/our-technical-resources/laboratory-analysis-icp-icp-ms-icp-aes.md) [### SEM](https://filab.fr/en/our-technical-resources/laboratory-analysis-sem-scanning-electron-microscopy.md)
## Our metal and alloy analysis

[Iron](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/iron-alloys-analysis-at-filab-laboratory.md): [steel](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-of-analysis-and-expertise-of-steels.md), [316L steel](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-steel.md), [stainless steel](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/stainless-steel-laboratory-analysis.md), [cast iron](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-cast-iron.md)

[Aluminum](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-aluminum-alloys.md)

[Tin](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-tin-alloy-sn.md) : SAC 305, SAC 0807, [Tin-Lead (SNPB)](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-snpb-alloys.md)

[Lead](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-lead.md)

[Molybdenum](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/molybdenum-laboratory-analysis.md)

[Copper](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-copper-alloys.md): [brass](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-brass-copper-alloys.md), [bronze](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-of-bronze.md)

[Titanium](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-titanium-alloys.md) : [TiAl](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-of-tial.md), T40, TA6V

[Cobalt](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-cobalt-alloys.md) : Cobalt Stellite Grade 6, Cobalt Stellite Grade 21

[Nickel](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-nickel-alloys.md) ([Nitinol](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/nitinol-characterisation.md), [Inconel](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-inconel-metals.md) 718, Inconel 625, [René 77](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-of-rene-77.md), Hastelloy X) 

[Zinc](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-zinc-alloys.md)

[Chrome](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/laboratory-analysis-chromium.md)

Other: [ferroalloy](https://filab.fr/nos-prestations/analyse/laboratoire-analysis-metallurgiques/analysis-ferroalliages/), [magnets](https://filab.fr/en/our-services/our-analysis-services/metallurgical-analysis-laboratory/magnet-analysis.md)

### Our accreditations

 ![](https://filab.fr/wp-content/uploads/2025/11/ESSAI-Logo-COFRAC.jpg)
The FILAB laboratory is accredited by COFRAC (French Accreditation Committee) – Laboratories section – in its Chemistry, Metallurgy, Organic Chemistry, Chemistry Expertise, Materials Expertise and Environment departments for the following areas:

✔️ Physicochemical analysis of metallic materials
✔️ Physicochemical analysis of cosmetic products and pharmaceutical products
✔️ Physicochemical analysis of medical devices, medical equipment, and chemical and biological products

Scope available No. 1-1793

This [Nadcap accreditation](https://filab.fr/en/about-us/accreditations-en/materials-testing-nadcap-laboratory.md) covers in particular:
✔️ Chemical analysis (ICP-OES) of critical metal alloys
(Al, Fe, Ni, Ti)
✔️ Metallography

An international recognition that confirms our commitment to quality and reliability for the most demanding applications, especially in aerospace.

 ![](https://filab.fr/wp-content/uploads/2026/04/PNG-bleu-e1775737225243-1024x446.png) [Discover our accreditations](https://filab.fr/en/about-us/accreditations-en.md)
## Our FAQ

 How do i get a quote from FILAB?
To get a quote, you can contact our teams via our contact form, by phone, or by email.
All you need to do is send us your requirements (material type, desired analysis, any applicable standard, urgency, number of samples, etc.). We will then send you a personalized technical and pricing proposal within 24-48 hours.

 What is the typical turnaround time for analysis?
Lead times vary depending on the nature of the analysis and the complexity of the expert assessment project.
However, FILAB is committed to providing fast turnaround times tailored to your constraints and industrial urgencies.

 Why analyze a single-crystal superalloy?
Single-crystal superalloys are used in the most demanding environments, notably for aerospace turbine blades and power-generation turbines. Their high-temperature behavior depends directly on their chemical composition, microstructure, crystallographic orientation and metallurgical condition. Laboratory analysis makes it possible to verify compliance, identify the causes of a failure or validate a manufacturing or repair process.

 What are the main single-crystal superalloys analyzed in the laboratory?
Specialized laboratories work on many nickel- or cobalt-based single-crystal superalloys, including:

- CMSX-4
- René N5
- René N4
- PWA 1484
- PWA 1480
- AM1
- TMS-75, TMS-82+, TMS-238
- Next-generation cobalt-based single-crystal alloys

These materials are mainly intended for the aerospace, space, defense and energy sectors.

 What is creep in a single-crystal superalloy?
Creep is the slow, progressive deformation of a material subjected to a constant mechanical stress at high temperature. For single-crystal superalloys, it is one of the main aging mechanisms for components operating for several thousand hours in aircraft engines or industrial turbines. Creep performance is therefore an essential criterion for ensuring part service life.

 Why carry out an expert assessment after a creep test?
Post-creep analysis helps to understand the mechanisms that led to material degradation. It highlights in particular:

- the evolution of the γ/γ' microstructure,
- the formation of cavities or cracks,
- rafting phenomena,
- deformation mechanisms,
- crack initiation zones,
- the effects of heat treatment or a coating.

This information is invaluable for improving part design, optimizing heat treatments or identifying the causes of premature failure.

 What analysis can be carried out on a single-crystal superalloy?
Depending on your needs, several investigations can be carried out:

- chemical analysis of major and trace elements;
- metallographic examination;
- scanning electron microscopy (SEM) with EDX analysis;
- characterization of the γ/γ' microstructure;
- measurement of precipitate size and morphology;
- search for porosity, inclusions or casting defects;
- crack analysis and fracture assessment;
- elemental mapping;
- crystallographic orientation control by EBSD;
- characterization of coatings or oxide layers.

---

##

 Why check the crystallographic orientation of a single-crystal superalloy?
The mechanical properties of single-crystal superalloys depend heavily on crystal orientation. Excessive misorientation can reduce creep resistance and shorten component service life. Checking this orientation is therefore an essential step when qualifying critical parts.

 In which cases should a CMSX-4 or rené N5 be analyzed?
An expert assessment is particularly useful when you want to:

- qualify a new material;
- compare several suppliers;
- inspect a production batch;
- validate a heat treatment;
- characterize a part after several thousand hours in service;
- understand a fracture or cracking issue;
- support an R&D or reverse-engineering approach.

 How can laboratory analysis identify the origin of a failure?
Expert analysis combines several analytical techniques in order to correlate:

- chemical composition,
- microstructure,
- metallurgical defects,
- damaged areas,
- the stresses experienced in service.

This approach makes it possible to determine whether the failure stems from a material defect, a manufacturing process, an unsuitable heat treatment, mechanical overload, or service-related aging.

 Why choose the FILAB laboratory to analyze a single-crystal superalloy?
Analyzing materials such as CMSX-4 or René N5 requires advanced characterization equipment as well as expertise in the metallurgy of high-performance materials. The combination of techniques such as electron microscopy, EBSD, chemical analysis, and metallurgical expertise provides a complete understanding of the material's behavior and delivers reliable evidence for qualification, quality control, failure analysis, or R&D projects.