Grain refinement by pearlitic-type constituents in Co–28Cr–5Mo–0.3C alloy
作者： Sh. Zangeneh , M. Ketabchi
DOI: 10.1016/J.MATLET.2012.11.074
关键词: Metallurgy 、 Ductility 、 Microstructure 、 Alloy 、 Equiaxed crystals 、 Grain boundary strengthening 、 Austenite 、 Materials science 、 Grain size 、 Grain boundary
摘要: Abstract In this study, an attempt to investigate alternative method for grain refinement in Co–28Cr–5Mo–0.3C alloy by microstructural transformation, from pearlitic-type constituents globular austenite structure has been made. During combined aging treatment (at 850 °C 10 h + 980 °C 20 min) new grains nucleated the interfaces of and grew form equiaxed austenitic (with almost 1/10 their initial size). X-ray diffraction patterns showed that microstructure after reversible is same one resulted solution treatment. The suggested studied promoted a formed fine distribution with 60 μm average size. Moreover, tensile properties transformation excellent strength good ductility.
sci-hub.se 参考文章(12)
A. J. Saldivar-Garcia, H. F. Lopez, Temperature effects on the lattice constants and crystal structure of a Co-27Cr-5Mo low-carbon alloy Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 35, pp. 2517- 2523 ,(2004) , 10.1007/S11661-006-0232-6
H.R. Lashgari, Sh. Zangeneh, F. Hasanabadi, M. Saghafi, Microstructural evolution during isothermal aging and strain-induced transformation followed by isothermal aging in Co-Cr-Mo-C alloy: A comparative study Materials Science and Engineering: A. ,vol. 527, pp. 4082- 4091 ,(2010) , 10.1016/J.MSEA.2010.03.018
Ming-Hui Cai, Chan-Young Lee, Singon Kang, Young-Kook Lee, Fine-grained structure fabricated by strain-induced martensite and its reverse transformations in a metastable β titanium alloy Scripta Materialia. ,vol. 64, pp. 1098- 1101 ,(2011) , 10.1016/J.SCRIPTAMAT.2011.02.030
Sh. Zangeneh, H.R. Lashgari, M. Saghafi, M. Karshenas, Effect of isothermal aging on the microstructural evolution of Co–Cr–Mo–C alloy Materials Science and Engineering A-structural Materials Properties Microstructure and Processing. ,vol. 527, pp. 6494- 6500 ,(2010) , 10.1016/J.MSEA.2010.06.081
Kenta Yamanaka, Manami Mori, Shingo Kurosu, Hiroaki Matsumoto, Akihiko Chiba, Ultrafine Grain Refinement of Biomedical Co-29Cr-6Mo Alloy during Conventional Hot-Compression Deformation Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 40, pp. 1980- 1994 ,(2009) , 10.1007/S11661-009-9879-0
Shingo Kurosu, Hiroaki Matsumoto, Akihiko Chiba, Grain refinement of biomedical Co-27Cr-5Mo-0.16N alloy by reverse transformation Materials Letters. ,vol. 64, pp. 49- 52 ,(2010) , 10.1016/J.MATLET.2009.10.001
C. Montero-Ocampo, H. Lopez, M. Talavera, Effect of alloy preheating on the mechanical properties of as-cast Co-Cr-Mo-C alloys Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 30, pp. 611- 620 ,(1999) , 10.1007/S11661-999-0052-6
D. Gaude-Fugarolas, H. K. D. H. Bhadeshia, A model for austenitisation of hypoeutectoid steels Journal of Materials Science. ,vol. 38, pp. 1195- 1201 ,(2003) , 10.1023/A:1022805719924
Nobuo Nakada, Naoki Hirakawa, Toshihiro Tsuchiyama, Setsuo Takaki, None, Grain refinement of nickel-free high nitrogen austenitic stainless steel by reversion of eutectoid structure Scripta Materialia. ,vol. 57, pp. 153- 156 ,(2007) , 10.1016/J.SCRIPTAMAT.2007.03.022
A. de J. Saldívar García, A. Maní Medrano, A. Salinas Rodríguez, Formation of Hcp martensite during the isothermal aging of an Fcc Co-27Cr-5Mo-0.05C orthopedic implant alloy Metallurgical and Materials Transactions A-physical Metallurgy and Materials Science. ,vol. 30, pp. 1177- 1184 ,(1999) , 10.1007/S11661-999-0267-6