# Heat Treatment Kinetics Pro

> Calculates heat treatment parameters using the Arrhenius equation and apparent activation energy. (iPhone/iPad app by ADRIAN ANGHELUS.)

- Source: https://appshunter.io/ios/app/heat-treatment-kinetics-pro/id1558729267 (this page in markdown: same URL + `.md`)
- Developer: [ADRIAN ANGHELUS](https://appshunter.io/developer/1558729269)
- Category: Productivity, Utilities
- Price: $49.99 (on sale, was $99.99)
- Rating: 5.00/5 from 1 App Store ratings
- Age rating: 17+
- Requires: iOS 15.5 · 1 MB
- Languages: English
- Released: 2021-03-24
- Data updated: 2026-07-07
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/heat-treatment-kinetics-pro/id1558729267/reviews.md

## What is Heat Treatment Kinetics Pro?

The calculations are made with the sole help of the material and transformation dependent parameter - Apparent Activation Energy.

     The target parameters are more specifically calculated using the well known Arrhenius equation (isothermal and/or non-isothermal). The basic model is also known as Hollomon & Jaffe.

     The application calculates one of the parameters by imposing the others.  The following 4 main options are available (each of them having another 2 options) :

1) Isothermal Conversion - TIME versus TEMPERATURE. Isothermal heat treatment time can be decreased by increasing the temperature. Conversely, the temperature can be decreased by increasing the heat treatment (soaking) time;

2) Heating Ramp Conversion. In this case it is possible to modify the start and end temperature (target parameters) in order to obtain the HEATING RATE or the start temperature and heating rate to calculate the END TEMPERATURE;

3) Isothermal to Heating Ramp. If the Isothermal heat treatment parameters are known for the desired properties, equivalent parameters can be calculated for a Heating Ramp, i.e. by imposing a start temperature and a heating rate it is possible to calculate the END TEMPERATURE  or by choosing the start and end temperatures the software can calculate the HEATING RATE;

4) Heating Ramp to Isothermal. If the Heating Ramp heat treatment parameters are know for the desired properties, equivalent parameters can be calculated for an Isothermal, i.e. by imposing the temperature it is possible to calculate the TIME or by choosing time the software can 
calculate the TEMPERATURE.

     The Apparent Activation Energy is the sole material and transformation dependent parameter of the model. Apparent Activation Energy can extensively be found in the literature for the most of the phase transformations or diffusion reactions. Nevertheless his value can differ depending on desired property, chemical composition, thermo-mechanical history of the material and the model by which it was assessed. For improved precision it can be determined experimentally on the material that should be heat treated, as described in the literature.

     The Heat Treatment Kinetics software can be a powerful tool for the reduction of costs and heat treatment optimisation. The purpose of the software is not to be a precision tool but rather an aide for laboratory research or process development.

     As any mathematical model the current computation came with some limitations. It is strongly recommended to read the ''Caution'' section before any use of the application.

     In the same time the input and output parameters were limited particularly for options implying heating ramps in order to reduce the risk of erroneous calculations as following :

- temperatures : -273.15 to 2000 °C;
- heating rates : 0.001 to 1000 °C/min.

     If you want to help improving the software you can send by e-mail  screenshot/s of parameters that did or did not work for you. In the same time please provide a full description of the material and temperature range of the transformation. The values of the material dependent apparent activation energies could be used for the integration in the future versions of the software.

## Key features

- Isothermal Conversion (Time vs. Temperature)
- Heating Ramp Conversion
- Isothermal to Heating Ramp Conversion
- Heating Ramp to Isothermal Conversion
- Apparent Activation Energy calculation
- Arrhenius equation implementation


## Frequently asked questions about Heat Treatment Kinetics Pro

### What is the main purpose of Heat Treatment Kinetics Pro?

Heat Treatment Kinetics Pro is designed to be a powerful tool for reducing costs and optimizing heat treatment processes. It serves as an aide for laboratory research and process development by performing complex calculations.

### What are the primary calculation options available in Heat Treatment Kinetics Pro?

The application offers four main calculation options: Isothermal Conversion (Time vs. Temperature), Heating Ramp Conversion, Isothermal to Heating Ramp Conversion, and Heating Ramp to Isothermal Conversion, each with further sub-options.

### What is the Apparent Activation Energy in the context of Heat Treatment Kinetics Pro?

Apparent Activation Energy is the sole material and transformation-dependent parameter used in the model. Its value can vary based on desired properties, chemical composition, and material history, and can be determined experimentally for improved precision.

### What are the limitations on temperature and heating rates in Heat Treatment Kinetics Pro?

For options involving heating ramps, the input and output parameters are limited to reduce the risk of erroneous calculations. Temperatures can range from -273.15 to 2000 °C, and heating rates from 0.001 to 1000 °C/min.

### Is Heat Treatment Kinetics Pro suitable for precise industrial applications?

The application is intended as an aide for laboratory research or process development and is not designed to be a precision tool. Users are strongly recommended to read the 'Caution' section before any use.

### What platforms is Heat Treatment Kinetics Pro available on?

Heat Treatment Kinetics Pro is available on iPhone, iPad, and iPod, indicating compatibility with Apple's iOS ecosystem.

### How frequently is Heat Treatment Kinetics Pro updated?

The application was last updated on December 6, 2023, with version 2.1. This suggests a relatively recent update, indicating ongoing development or maintenance.

### What is the price of Heat Treatment Kinetics Pro?

Heat Treatment Kinetics Pro is a paid application, priced at $49.99. This one-time purchase grants access to its full functionality.

## Version history (last 3 releases)

### 2.1 — 2023-12-06

Updated to iOS version 15.5.

### 2.0 — 2022-12-30

- fixed compatibility with iOS 15.5;
- updated the licence agreement;
- renamed the app;
- added App title;
- re-organised the code;
- simplified a part of text formatting.

### 1.0 — 2021-03-19

No release notes.

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## More apps by ADRIAN ANGHELUS

- [Heat Treatment Kinetics Lite](https://appshunter.io/ios/app/heat-treatment-kinetics-lite/id1662393788)

All apps by ADRIAN ANGHELUS: https://appshunter.io/developer/1558729269

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-07-07.*