0 Anonymous Asked: June 15, 2020In: Business How can grain growth in a weld be controlled? (welding)? 0 welding welding questions Share Facebook 1 Answer Voted Oldest Recent Rakesh 0 Questions 51 Answers 0 Best Answers 129 Points View Profile Rakesh Added an answer on June 15, 2020 at 9:07 am You can definitely try and quench the welding material while it is still hot, but generally the issue with this is that you are inducing stresses at the weld joint that might not be OK. You have to remember that there is a microstructural gradient at the weld, and that it is already under stress because of this. To combat this, most do a post-weld heat treatment that involves a series of thermal cycles and a temper to stress relieve. If you are working with most carbon steels, if you can heat the entire area up to about 1500 or so and allow to to cool to room temperature naturally. That should be OK for a rough normalization (could do it again if you want, but I wouldnt find it super necessary unless you want very small grains) and then run it through a low-temp temper (300–350F min) to stress relieve. It is hard to give exact numbers, I dont know what alloy (even if it is steel) you are working with. 0 Reply Share Share Share on Facebook Share on Twitter Share on LinkedIn Share on WhatsApp Leave an answerCancel replyYou must login or register to add a new answer.