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'magnesium alloys' - The introduction of a scientific paper


ah_zafari [Contributor] 40 / 672 148  
Jun 15, 2012   #1
Hi, I wrote a part of the introduction of an article below. Please help me to improve it. This is just a part of the inroduction, and I am writing the rest of it. Thanks in advance.

Mg-Al-based magnesium alloys could draw the attention of many industries, especially airspace and automotive ones, because of their great castability, good corrosion resistance and appropriate room-temperature mechanical properties. AZ91 magnesium alloy is the most commonly used Mg-Al alloy at low temperature applications. However, the use of this alloy at the temperatures over 110-120 şC is limited due to its poor mechanical properties at elevated temperatures. The formation of -Mg17Al12 phase in the interdendritic regions, is known as the main reason of weak mechanical properties of AZ91 alloy at high temperatures. This phase has a low melting point (i.e., 437 şC) and low thermal stability. As a result, AZ91 alloy loses its strength stemming from dissolution, coarsening and softening of -Mg17Al12 intermetallics.

Numerous studies have been conducted to improve the mechanical properties of this alloy at elevated temperatures. Most of the investigations have focused on replacing unstable -Mg17Al12 phase with thermally stable intermetallics by addition of some elements such as Ca, Y, RE, etc, to the alloy through alloying process.

Poor wear behavior of AZ91 alloy is another important factor which can limit the applications of it. The tribological behavior of this alloy has attract the attention of a group of researchers over last years.
viviana15077 7 / 21  
Jun 15, 2012   #2
Your essay is pretty clear-cut. Although I do not major in science, by reading your essay, it gave me an idea what AZ91 is, the bad and good characteristics. Great essay
OP ah_zafari [Contributor] 40 / 672 148  
Jun 15, 2012   #3
Thank you so much.
Andys 1 / 2  
Jun 15, 2012   #4
Hi Ahmad,

AZ91 magnesium alloy is the most commonly used Mg-Al alloy for room temperature applications. However, the use of this alloy at the temperatures...
The formation of -Mg17AI12 phase in the interdendritic regions, is known to be the main reason for the weak mechanical properties of the AZ91 alloy at high temperatures.

... Poor wear behavior of the AZ91 alloy is another important factor which can limit its applications . The tribological behavior of this alloy has attracted the attention of a group of researchers (are you sure if it is just one group or many groups ) over the last few years .

Hope that helps :)
OP ah_zafari [Contributor] 40 / 672 148  
Jun 15, 2012   #5
are you sure if it is just one group or many groups

Actually just Tribologist work on it. There are a few scientists in the world that work on wear behavior of Light alloys (including magnesium). In addition, I wrote "a group" because I was not talking about a specific researcher.

Thank you very much for your help. The comments were really useful.
dumi 1 / 6,927 1592  
Jun 15, 2012   #6
Hi Ahmad,

Well.... I must tell you that I'm not a chemistry lover and as I saw you have written about Mg-Al alloys, I moved to the other thread.... lol

Anyways.... how can I say no to your request because you are one of the most generous contributors here who spend a lot of your valuable time for the interest of other people. I really admire your commitment to help other people and the valuable feed backs you provide them with. :)

Coming back to your intro, I don't find any grammatical errors there. This is more academic writing and naturally you have limitations with displaying creativity there.


automotive ones,

-------------- I prefer if you replace the word '' ones'' with the word ''industries''

The rest is really fine... You have presented it in a very comprehensible manner that any ordinary layman can understand what you talk of. That's really good. And all these going to be in one introductory para ?
OP ah_zafari [Contributor] 40 / 672 148  
Jun 15, 2012   #7
I really appreciate your words, especially the last sentence was really important for me, because as my supervisor told me, an article must be clear for everyone and I am happy that I could convey my message in this way.

I am sorry that the topic was boring :))))))))))))))

About you question :Actually this is an introduction of an article. As you know each paper has four main parts: Introduction; Experimental procedure; Results and discussion; conclusion. As a paper each part must be explained separately.

Thanks again
dumi 1 / 6,927 1592  
Jun 15, 2012   #8
You've done a good job bro :)
hadi1981 25 / 44  
Jun 18, 2012   #9
Dear Ahmad,

Would you please help me in my essay

Separate classes in gender bases category.

Many thanks

Hadi
hadi1981 25 / 44  
Jun 19, 2012   #10
Hi Ahmad,

You've done a great job really....
Could you please revise my essay thread "English is the primary foreign language..." Thanks in advance

Best regards

HADI
Ramesh A 1 / 1  
Jul 4, 2012   #11
Its pretty clear cut nothing much more is needed in the introductory phase :-):-):-)
OP ah_zafari [Contributor] 40 / 672 148  
Jul 4, 2012   #12
Its pretty clear cut nothing much more is needed in the introductory phase

Thanks for your comment. An introduction for a journal paper has three main parts: 1) theories; 2) review of the literature; 3) The aim and novelty of the work.
miumiu0422 2 / 3  
Jul 4, 2012   #13
Hi Ahmad

I am also major in material science and engineering ,so i kind of read your introducation of the article understandably

The formation of -Mg17Al12 phase in the interdendritic regions, is known as the main reason of weak mechanical properties of AZ91 alloy at high temperatures. This phase has a low melting point (i.e., 437 şC) and low thermal stability

These two sentences can be combined as "the formation of ..phase with low melting point and ...,is known as...

Poor wear behavior of AZ91 alloy is another important factor which can limit the applications of it.

It is the poor wear behavior of AZ91 that also limit the applications ...
Elsayed - / 2  
Jul 5, 2012   #14
Hey Ahmed,

Good work! I also work on magnesium alloys, Are you doing your PhD or masters in magnesium alloys? Where are you studying?. Only one note about the intro., you should continue it by stating which kind of study or strategy have you employed in addressing AZ91 high temperature instability.

Good luck in your research work.

Best Regards
Fady
OP ah_zafari [Contributor] 40 / 672 148  
Jul 5, 2012   #15
Hey, That is interesting for me that you are working on Magnesium alloys, too. I have got a M.Sc degree from the University of Tehran in 2010. I have applied for several universities and I am waiting for the results, now. I could not write the aim and detail of my work here because this work has not been published yet, and I did not want to write about my ideas and the novelty of the work in a public forum. Thanks again for your comment.

Good luck
Ahmad
OP ah_zafari [Contributor] 40 / 672 148  
Jul 5, 2012   #16
I am also major in material science and engineering ,so i kind of read your introducation of the article understandably

That's great that I am not the only person in this forum whose major is Material science.

These two sentences can be combined as "the formation of ..phase with low melting point and ...,is known as...

This is a good advice, but I think if I do that the sentence may become too long and hard to understand.

Thanks Shi Lu for your suggestions.

Regards
Ahmad
Elsayed - / 2  
Jul 5, 2012   #17
Thats Great Ahmed, Hope for you best of luck in your studies. Which countries are you considering for your application? I,ll be glad to help with any advice.

Cheers
Fady
OP ah_zafari [Contributor] 40 / 672 148  
Jul 5, 2012   #18
Australia :)).
chucnt 6 / 18  
Jul 5, 2012   #19
Ahmad !
Could you tell me how to download the book titled :"For and against " An Oral Practice Book For Advands Students Of English.I spended so much time to download it ,but i have finded it :(

Thanks so much !
OP ah_zafari [Contributor] 40 / 672 148  
Jul 6, 2012   #20
Could you tell me how to download the book titled :"For and against "

I do not know because I did not download it. I bought it from a book store:)


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