| Refinement of austenite grain using uniform experiment design for AISI H13 |
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| 作者姓名： | 张斌 柳建韬 张鸿冰 阮雪榆 |
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| 作者单位： | 张斌,柳建韬,阮雪榆(Department of Plasticity Forming Engineering, Shanghai Jiaotong University, Shanghai 200030, China);张鸿冰(Department of Materials Engineering, Institute of Shanghai Technology, Shanghai 200035, China) |
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| 基金项目： | TheNationalNaturalScienceFoundationofChina (No .5 0 0 75 0 5 3) |
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| 摘 要： | The uniform experiment design is an effective way of optimizing technology scheme for refining the grain size during multistage deformation. In this paper, it is adopted to evaluate the effect of each technology parameter on final grain size of AISI H13 hot-work tool steel during multistage deformation. It has been verified that the technology scheme for refining the final grain size can be determined rapidly and efficiently with the aid of the uniform design. The results show that the deformation parameters and the intermission time after deformation of the first stage affect the final grain size remarkably. For AISI H13 hot-work tool steel, the final grain size can be refined notably when deformation parameters for the first stage are set as follows: a deformation temperature range of 1 025-1 085 ℃; a true strain of above 0.26 and the interpass time between the first and the second stage of deformation less than 10 s.
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| 收稿时间： | 11 February 2002 |
Refinement of austenite grain using uniform experiment design for AISI H13 |
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| Zhang Bin , Liu Jian-tao , Zhang Hong-bing and Ruan Xue-yu.Refinement of austenite grain using uniform experiment design for AISI H13[J].Journal of Central South University of Technology,2002,9(4):240-245. |
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| Authors: | Zhang Bin Liu Jian-tao Zhang Hong-bing and Ruan Xue-yu |
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| Affiliation: | Department of Plasticity Forming Engineering, Shanghai Jiaotong University, Shanghai 200030, China Department of Plasticity Forming Engineering, Shanghai Jiaotong University, Shanghai 200030, China Department of Materials Engineering, Institute of Shanghai Technology, Shanghai 200035, China Department of Plasticity Forming Engineering, Shanghai Jiaotong University, Shanghai 200030, China |
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| Abstract: | The uniform experiment design is an effective way of optimizing technology scheme for refining the grain size during multistage
deformation. In this paper, it is adopted to evaluate the effect of each technology parameter on final grain size of AISI
H13 hot-work tool steel during multistage deformation. It has been verified that the technology scheme for refining the final
grain size can be determined rapidly and efficiently with the aid of the uniform design. The results show that the deformation
parameters and the intermission time after deformation of the first stage affect the final grain size remarkably. For AISI
H13 hot-work tool steel, the final grain size can be refined notably when deformation parameters for the first stage are set
as follows: a deformation temperature range of 1 025–1 085 °C; a true strain of above 0.26 and the interpass time between
the first and the second stage of deformation less than 10 s.
Foundation item: The National Natural Science Foundation of China (No.50075053)
Biography of the first author: ZHANG Bin, doctoral student, born in 1972 majoring in materials science and engineering. |
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| Keywords: | grain refinement deformation parameter dynamic recrystallization uniform design experiment |
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