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Key parameters for low temperature warm compaction of high density iron-based P/M materials

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Abstract

In order to reduce powder temperature to lower than 100 °C in warm compaction by changing polymer lubricant design, powder flowability, warm compacting behavior, lubricating mode as well as ultimate tensile strength after sinter-hardening and tempering were investigated systematically. By means of low temperature warm pressing and sintered hardening technique, samples with the sintered densities of 7.40 – 7.45 g/cm3 and the strengths of 950 –1 390 MPa are achieved as the early compacting pressure is 686 – 735 MPa.

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Authors and Affiliations

  1. State Key Laboratory of Powder Metallurgy, Central South University, 410083, Changsha, China

    Cao Shun-hua (Professor), Lin Xin-ping, Li Jiong-yi, Xie Zhan & Cai Zhi-yong

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  1. Cao Shun-hua
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  2. Lin Xin-ping
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  3. Li Jiong-yi
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  4. Xie Zhan
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  5. Cai Zhi-yong
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Correspondence to Cao Shun-hua.

Additional information

Foundation item: Project (2001AA337010) supported by the National High Technology Research and Development Program of China

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Cao, Sh., Lin, Xp., Li, Jy. et al. Key parameters for low temperature warm compaction of high density iron-based P/M materials. J Cent. South Univ. Technol. 12, 359–365 (2005). https://doi.org/10.1007/s11771-005-0161-3

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  • DOI: https://doi.org/10.1007/s11771-005-0161-3

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