RESEARCH ON HEAT TREATMENT PROCESS OF EXPLOSIVE CLAD PLATE PREPARED BY TMCP STATE BRIDGE STEEL AND 316L STAINLESS STEEL
The heat treatment performance and microstructure evolution process were investigated for the explosive clad plates combined by TMCP(thermo-mechanical controlled process)state Q370qD bridge steel and 316L stainless steel in the paper.The results indicate that the explosive welding 316L/Q370qD(TMCP)clad plates have the higher strength and worse plastic after the low temperature annealing,while the unqualified strength and large discrete of im-pact value are obtained after high temperature annealing at 900℃;the optimized heat treatment process are carried out in the range of 630～710℃,and the appropriate heat treatment temperature range is finalized as 650～680℃with holding time of 1.5～2 h.The qualified properties and good subsequent producing treatment effects are obtained for the large size clad plates after annealing verification testing(air cooling after annealing at 680℃×1.5h),which shows the feasibility of preparing 316L/Q370qD(TMCP)clad plates.
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