Performance Tests of 12Cr2Mo1R Steel Weld Metal Under Different Heat Treatment States
This article compares and analyzes the changes in various properties of 12Cr2Mo1R steel weld metal under different heat treatment conditions,including room temperature and high-temperature mechanical properties,as well as-20℃ and-30℃ KV2 low-temperature impact toughness and hardness.Using experimental data to illustrate that in order to prevent the precipitation of hard and brittle carbides during post weld heat dissipation(DHT),which may cause excessive strength and hardness of the weld metal and lead to cracking of the welded joint,post weld heat dissipation(DHT)cannot be used instead of intermediate stress relief heat treatment(ISR).
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