The image of total a-phase mass fraction is represented below. To calculate total a-phase mass fraction, three essential parameters are needed and these parameters are **Hypo-Eutectic Phase (P), Hypo-Eutectic Phase (Q)** and **Hypo-Eutectic Phase (Q).**

**The formula for calculating a-phase mass fraction:**

W_{α} = ^{(Q + R)}/_{(P + Q + R)}

Where:

W_{α} = Total α-phase Mass Fraction

P, Q = Hypo-Eutectic Phases

R = Hyper-Eutectic Phase

Given an example;

Find the total a-phase mass fraction when the hypo-eutectic mass fraction is 4, the hypo-eutectic phase is 8 and the hyper-eutectic phase is 10.

This implies that;

P = Hypo-Eutectic Phase = 4

Q = Hypo-Eutectic Phase = 8

R = Hyper-Eutectic Phase = 10

W_{α} = ^{(Q + R)}/_{(P + Q + R)}

That is, W_{α} = ^{(8 + 10)}/_{(4 + 8 + 10)}

W_{α} = ^{(18)}/_{(22)}

W_{α} = 0.818

Therefore, the **Total a-Phase Mass Fraction **is **0.818.**

Read more: How to Calculate and Solve for Total β-phase Mass Fraction | Phase Transformation

**How to Calculate Total α-phase Mass Fraction With Nickzom Calculator**

Nickzom Calculator – **The Calculator Encyclopedia** is capable of calculating the total a-phase mass fraction.

To get the answer and workings of the total a-phase mass fraction using the **Nickzom Calculator – The Calculator Encyclopedia. **First, you need to obtain the app.

You can get this app via any of these means:

**Web** – https://www.nickzom.org/calculator-plus

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To get access to the **professional **version via web, you need to **register** and **subscribe **to have utter access to all functionalities.

You can also try the **demo **version via https://www.nickzom.org/calculator

**Android (Paid)** – https://play.google.com/store/apps/details?id=org.nickzom.nickzomcalculator

**Android (Free)** – https://play.google.com/store/apps/details?id=com.nickzom.nickzomcalculator

**Apple (Paid)** – https://itunes.apple.com/us/app/nickzom-calculator/id1331162702?mt=8

Once, you have obtained the calculator encyclopedia app, proceed to the **Calculator Map, **then click on **Materials and Metallurgical **under **Engineering****.**

Now, Click on **Phase Transformation**** **under **Materials and Metallurgical**

Now, Click on **Total a-Phase Mass Fraction **under **Phase Transformation**

The screenshot below displays the page or activity to enter your values, to get the answer for the total a-phase mass fraction according to the respective parameter which is the **Hypo-Eutectic Phase (P), Hypo-Eutectic Phase (Q)** and **Hypo-Eutectic Phase (Q).**

Now, enter the values appropriately and accordingly for the parameters as required by the **Hypo-Eutectic Phase (P)** is **4**,** Hypo-Eutectic Phase (Q) **is **8** and **Hypo-Eutectic Phase (Q)** is **10**.

Finally, Click on Calculate

As you can see from the screenshot above, **Nickzom Calculator**– The Calculator Encyclopedia can calculate the total a-phase mass fraction and presents the formula, workings and steps too.