Multiscale-interface Formation and Microstructure Evolution of Nano-Structured Graded Composite of TiB<sub>2</sub>-based ceramic and 42CrMo Alloy Steel

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Multiscale-interface Formation and Microstructure Evolution of Nano-Structured Graded Composite of TiB2-based ceramic and 42CrMo Alloy Steel
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Affiliation:Ordnance Engineering College,Ordnance Engineering College,Ordnance Engineering College,Ordnance Engineering College
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选用42CrMo合金钢板为金属基底，以（Ti-B4C）为反应体系，采用离心反应熔铸工艺成功制备出TiB2基陶瓷/42CrMo合金钢梯度纳米结构复合材料。结合XRD、FESEM与HRTEM分析，可以认为由于离心反应熔铸工艺诱发热爆反应，促使液态陶瓷与合金钢发生熔合扩散，在两者之间生成成分浓度梯度的中间液相，并在陶瓷凝固与离心力的双重作用下发生陶瓷晶核Stokes迁移粗化与合金液相流动汇集，最终在复合材料层间生成相界尺度呈空间连续梯度演化的梯度纳米复合结构。

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[Zhao Zhongmin, Peng Wenbin, Wu Baojun, Zhang Long. Multiscale-interface Formation and Microstructure Evolution of Nano-Structured Graded Composite of TiB₂-based ceramic and 42CrMo Alloy Steel[J]. Rare Metal Materials and Engineering,2018,47(S1):113~117.]
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Received:June 04,2017
Revised:February 11,2018
Adopted:February 12,2018
Online: October 22,2018
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