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- W2365402495 abstract "Heat treatment technique for column button drill bit steel 45CrNiMo1V was studied,as well as repeated impact fatigue and hardness test and observation of microstructure and fracture surface were applied to verify the heat treatment technique.Results showed that repeated impact fatigue lifespan was longer when 45CrNiMo1V steel were oil quenched at 880℃ and oil tempered at 580℃,and the average hardness of bit shell reached 45.5HRC,which completely met the technical requirements." @default.
- W2365402495 created "2016-06-24" @default.
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- W2365402495 date "2012-01-01" @default.
- W2365402495 modified "2023-09-22" @default.
- W2365402495 title "Study on heat treatment and proporty of 45CrNiMo1V drill bit" @default.
- W2365402495 hasPublicationYear "2012" @default.
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