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- W2386758997 abstract "The effect of tempering temperature and preheating on microstructure and mechanical properties of a high resistivity and magnentic permeability duplex stainless steel 1Cr17Ni2Si2 was studied by SEM,EDS and DSC.The results show that the microstructure of 1Cr17Ni2Si2 steel after quenching and low temperature tempering is tempering martensite,δ-ferrite and a small mount of carbide.With tempering temperature increasing,it results in the dispersed precipitation of the carbides which tempering martensite disassembles into.So the tensile strength and impact toughness decrease.After preheating at 850 ℃ for 1 h,much more carbides can dissolve in matrix,and not precipitate at grain boundary,and more martensite can be obtained after tempering cooling.Then higher impact toughness and strength are obtained than that without preheating in the steel.Final optimal heat treatment is preheating at 850 ℃ for 1 h,austenitizing at 1050 ℃ for 2 h,cooling in oil and tempering at 340 ℃ for 2 h,cooling in air." @default.
- W2386758997 created "2016-06-24" @default.
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- W2386758997 date "2010-01-01" @default.
- W2386758997 modified "2023-09-26" @default.
- W2386758997 title "Effect of heat treatment on microstructure and properties of 1Cr17Ni2Si2 duplex stainless steel" @default.
- W2386758997 hasPublicationYear "2010" @default.
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