Common faults are: too general, the topic is not deducted. For example, the' study of metal fatigue strength' is too general, and if it is changed to the specific object of study, it should be put forward. The effect will be much better, such as' Study on Fatigue Strength of Nickel-containing Famous Alloy Materials', and the title will be much more appropriate. Another example:' Study on the Effect of Al and Ti Content in 35Ni-15Cr Superalloy on Long-term Properties and Microstructure Stability at High Temperature' is too long and inaccurate. What is the meaning of 35Ni- 15Cr in the title? It's puzzling. Is it a percentage? Is it a weight ratio? Volume ratio? Metal grade? Or something else, I don't know, it's called ambiguity. The solution is to clearly show the content of the paper from the reader's point of view. If the above title refers to the percentage content, it can be explained in the text, not in the title, and the title only needs to reflect the fact that it contains Ni and Cr. The reference modification scheme is: "Effect of Al and Ti contents in Ni and Cr alloys on high-temperature properties and microstructure stability".
The key problem is that the topic should be closely related to the content of the paper, or that the content of the paper should match and be closely related, that is, the topic should be deducted and the article should be deducted. This is the basic principle of writing a thesis.