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Revisiting Some Prospects for the Further Development of Ideas by Academician V.N. Antsiferov in the Field of Structural Powder Materials
Russian Journal of Non-Ferrous Metals ( IF 0.8 ) Pub Date : 2020-01-24 , DOI: 10.3103/s1067821219060051
V. Yu. Dorofeyev

Some developments by Academician V.N. Antsiferov and his scientific school are considered from the viewpoint of their further development when fabricating structural powder materials and products. The prospects of work for the fabrication of concentration-inhomogeneous and trip steels are noted. There is great potential in the possibility of controlling the thickness and volume of the zone of the deformation martensite transformation occurring during the fracture. It is advisable to continue works on the fabrication of fullerene-containing and nitrogen-containing powder compositions, as well as on studying the structural heredity of powder steels. The possibility of synthesizing fullerene-containing phases during the liquid-phase sintering of “iron–cast iron” and “iron–graphite” compositions and their subsequent redistribution in the material bulk during dynamic hot pressing deserves attention. It is reasonable to fabricate nitrogen-containing steels by the mechanical activation of powders with subsequent sintering in dissociated ammonia not only when forming wear-resistant and corrosion-resistant steels, but also heat-resistant materials. Works on studying the decomposition of supercooled austenite in powder steels of various alloying systems having different process prehistories (sintered, hot-deformed, infiltrated, etc.) are promising. Works on studying hot deformed concentration-inhomogeneous materials fabricated, in particular, based on powders of the Distaloy type, are promising. Original procedures developed by the school of Academician V.N. Antsiferov are valuable. This is, in particular, the procedure of determining the concentration variation coefficient, as well as the magnitometric complex and mathematical model providing the possibility to forecast the decomposition of supercooled austenite. Works by V.N. Antsiferov can be in-demand when solving the problem of lean alloyed powder steels with a lower bainite structure, which provide the optimal combination of strength and viscosity.

中文翻译:

回顾VN Antsiferov院士在结构粉末材料领域进一步发展思想的一些前景

VN Antsiferov院士和他的科学学院的一些发展从结构粉末材料和产品制造的进一步发展的角度考虑。指出了用于制造浓度不均一和跳闸钢的工作前景。控制断裂过程中发生的变形马氏体相变区的厚度和体积的可能性很大。建议继续进行含富勒烯和含氮粉末组合物的制备,以及研究粉末钢的结构遗传。在“铁铸铁”和“铁-石墨”组合物的液相烧结过程中合成富勒烯相的可能性以及随后在动态热压过程中其在材料块体内的重新分布值得关注。通过粉末的机械活化并随后在离解的氨中进行烧结来制造含氮钢是合理的,不仅在形成耐磨和耐腐蚀钢时,而且在形成耐热材料时。研究具有不同工艺历史(烧结,热变形,渗透等)的各种合金体系的粉末钢中过冷奥氏体的分解的研究工作很有希望。研究特别是基于Distaloy型粉末制造的热变形的浓度不均匀材料的工作很有希望。VN Antsiferov院士制定的原始程序很有价值。尤其是,这是确定浓度变化系数的过程,以及通过磁力分析和数学模型提供预测过冷奥氏体分解的可能性。VN Antsiferov的作品可以解决贝氏体含量较低的贫合金粉末钢的问题,因为它可以提供强度和粘度的最佳组合。
更新日期:2020-01-24
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