BR

1. Increase number of words in each chapter. You have to add at least 2000 words for the entire project, I mean the whole project. 

2. In Chapter 4 Result and discussion: more explanation is required; each graph should be explained with more details. Also, why hardness of the alloy increase after heat treatment with Scientific clarification.

3. Explain roughness graphs and the relationship between surface roughness and corrosion.

4. This chapter carries more marks so focus more on it and provide more explanation and analyze each test result

5.  In Chapter 2 Add extra two or three literature reviews related to the project topic.

6.  In Chapter 7 Conclusion also increase number of words.

a. Note: The length of the main body text should be about 9000 words.