heating can affect aluminium
This is science so, if you want specific answers, you must ask specific questions. What type of aluminum are you interested in? What characteristics are important to you? What kind of factors are you talking about? You are right that heating can affect Al. In fact, heating affects, basically, everything, every material we know of and every physical and chemical process that we do and every process that happens in nature. Temperature is important in all of these. There are more than a hundred different commercial aluminum alloys and most of them are available in a variety of different tempers (heat treated conditions). The heat treatment of commercial Al alloys is a very important thing. If you want more specific information, consult your friendly neighborhood metallurgist.