Thank you very much, I will use the Scanning Electron Microscope (SEM) to check if there are corrosive products. But looking at the timing, would it be possible for corrosion to cause the failure in less that 36 hours of operation at less than 80 degrees of operating temperature, taking into...
@EDStainless, I attached the picture showing sensitized grain boundaries. Meaning this weld failed because of sensitization.https://files.engineering.com/getfile.aspx?folder=afade0f7-435c-400f-8e92-ea9beff52ee3&file=Sensitization_100x_Mag_wrong_micron_mark.jpg
Good Day
What are the obvious features to differentiate the failure which was as the result of sensitization or reheat cracking on the 316 stainless steel weld. The crack initiated on the weld toe and sensitization on the HAZ was observed. The failure happened after 36hours of operation. The...
but i am a bit worried about the effect of the test load to the hardness of the material. since the hardenss normally decreases with an increase in a test load. according to Dieter the minimum test load is 300gf and above this the hardness of the material should remain constant.
Thanx Metengr. The machining problems i am having is related to the surface finish during the final stage of the tunning process. There is a material build up at the tip of the cutting tool, resulting in a continous scratches forming along the cutting direction. However i have to continously get...
I have been manufacuturing components using an AA6xxx and now i want to use AA5xxx. unfortunately i am having problems machining the component from AA5xxx. Although it is difficult to manufacture this component, is there way or best technique (either expensive or not) of manufacturing the 5xxx...
Thanks so much CoryPad, although they are close to each other, i think there should be a maximum recommended pontential difference above which galvanic corrosion could be the limiting factor and i am looking for that info as well.
I want to couple 5xxx series and 6xxx serie Al alloys so want to know if there might be a possibility of galvanic corrosion when immersed under seewater/corrosive medium since they are both Al and i assume that they might be close to each other in the series (Galvanic Series.
I have the following equation Y =(2/?)*[sec{(?/2)*(c/t)}], this correctional factot of Y is used for leak-before-break condition. so i would like to get the source of this equation or references. i am trying to establish if i can use this equation for sphere since it is said that is for plates.
Prost: I got hold of Tada-Paris book, however i had a question, why the author used mean radius, R, instead of internal or external radius. Do you have an idea why the Author used MEAN RADIUS?
