Postgraduate dissertation subject

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HelloI`m studying material and welding engineering. It`s my last year and i need a subject for my dissertation. Goal of the work is to solve or analyze a problem. Size of the work is not very big(60-100 A4), so the problem should be specific, so that the dissertation wouldn`t expand and answer questions of the problem. Hope to get any ideas. Thanks ahead.
Reply:G'dayMy advice is to research the fabrication industry on what specific problems they experience. I'm sure they would help once you told them your intentions. They may even contribute to costs and provide workspace / services for you to perform basic research when you determine a common and re-occurring problem within the industry.Another information source are university professors in the enginneering faculties, they may be able to point you in the right direction.Dissertations cost money, you might score a sponsor if you are keen to research a particular problem they are having.In addition to what you said, dissertations can also be a study on the effects of anything to.For example: PWHT effects on Q & T or normalised steel properties, CVN transition temp, fracture arrest properties (CTOD or SENT) etc ( look at AWS D1.1 structural steels: eg: API 2W, 2Y, 2H types). You could also look at tempering temperatures, heat input, preheat effects, process selection, as well.What about UNS S31803, S32750, S32760 materials. There are lots of welding "issues" with this material with critical service.  The G48 corrosion test is always a gamble. Maybe some way of guaranteeing this will always pass, eg: welding process, heat input, microstructure balance, weld finish, post weld treatments etc. (Despite a wealth of information about this, there is a high % of G48 that fail)Another common problem is failure of low temperature CVN tests in general on C-Mn and micro-alloyed C-Mn steel. Especially with the FCAW process. There may be something here worth investigating.Anyway good luck with your dissertation. I would be interested in your progress.Cheers