I am trained to do welding and plasma cutting, but I don't presently own or have access to said equipment. LME was not a topic brought up at the class, as we were just focusing on steel, but it was something I was previously made aware of. If not for bad AI at a staffing agency, I would likely be building battleships.
If I were spend the money for a welder system, the electrodes, and for kevlar based PPE, I don't think you'd watch my experimentation nor do I think it would be worth my time/money. Sure I could build a bloom furnace a lot cheaper than the commercial equipment to just melt a some Zinc onto steel and try to replicate the process of LME, but the ground is still frozen here. Still a waste of my time. Why?, because there are already scientific literature on the subject of Liquid Metal Embrittlement freely available. Including this one from the American Welding society. Read it.

https://app.aws.org/wj/supplement/WJ_1992_12_s455.pdf