CrackingQuenchist Posted December 8, 2020 Share Posted December 8, 2020 (edited) Can you tell me the source of your information on quench cracking based on overly aggressive agitation below? On 3/11/2019 at 7:19 AM, IronAlchemy said: Sad to see a good tool crack. Edited December 8, 2020 by Mod30 Remove excessive quote. Quote Link to comment Share on other sites More sharing options...
Steve Sells Posted December 8, 2020 Share Posted December 8, 2020 no one said anything about agitation Quote Link to comment Share on other sites More sharing options...
CrackingQuenchist Posted December 8, 2020 Author Share Posted December 8, 2020 (edited) Temperature only? I would like to know more about the cause and effect of different agitation rates... Some reading I am doing: https://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.522.9535&rep=rep1&type=pdf https://www.houghtonintl.com/sites/default/files/resources/article_-_advances_in_quenching.pdf http://www.getottenassociates.com/pdf_files/6072_0192_224_web.pdf Edited December 8, 2020 by Mod30 Remove excessive quote. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted December 8, 2020 Share Posted December 8, 2020 Did you read the ASM Handbook on Heat Treating? They discuss quenchants and forms of agitation in detail. Quote Link to comment Share on other sites More sharing options...
CrackingQuenchist Posted December 8, 2020 Author Share Posted December 8, 2020 (edited) Yes; just haven't found the detail about agitation. Edited December 8, 2020 by Mod30 Remove excessive quote. Quote Link to comment Share on other sites More sharing options...
ThomasPowers Posted December 8, 2020 Share Posted December 8, 2020 Besides moving the piece there should be references to pumped quenchant and bubbled quenchant. Of course the old blacksmithing books mention moving the workpiece up and down to avoid a water line crack; but they were using simpler alloys. Quote Link to comment Share on other sites More sharing options...
patrick Posted December 27, 2020 Share Posted December 27, 2020 Cooling rate determines the as quenched microstructure which in term strongly influences the stresses generated. Agition can increase or decrease cooling rate depending on how agressive it is. The are many other factors that influence quench related cracking such as part geometry so you really have to consider them all together if you are trying to prevent cracks. Quote Link to comment Share on other sites More sharing options...
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