Effects of Zr Additions on the Microstructure and the Mechanical Behavior of PM Mo-Si-B Alloys

被引：42

作者：

Krueger, M. ^{[1
]}

Schliephake, D. ^{[2
]}

Jain, P. ^{[3
]}

Kumar, K. S. ^{[3
]}

Schumacher, G. ^{[4
]}

Heilmaier, M. ^{[2
]}

机构：

[1] Univ Magdeburg, Inst Mat & Joining Technol, D-39104 Magdeburg, Germany

[2] Karlsruhe Inst Technol, Inst Appl Mat, D-76128 Karlsruhe, Germany

[3] Brown Univ, Sch Engn, Providence, RI 02912 USA

[4] Inst Werkstoffe, Helmholtz Zentrum Berlin Mat & Energie, D-14109 Berlin, Germany

来源：

JOM | 2013年 / 65卷 / 02期

关键词：

Alloying elements - Silicon alloys - Nickel alloys - Zirconium alloys;

D O I：

10.1007/s11837-012-0475-1

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In this article, our current understanding on the effects of Zr additions on the properties of three-phase Mo-Si-B alloys is reported. This novel group of materials having high melting points around 2000A degrees C have been identified as potential alloy systems for structural applications at temperatures beyond 1200A degrees C, e.g., for substituting or supplementing state-of-the-art nickel-base superalloys in the power generation industry. In earlier work, we developed various Mo-Si-B materials with very good high-temperature deformation behavior and, in addition, that satisfy oxidation performance. Minimum brittle-to-ductile transition temperatures of around 950A degrees C, however, do not meet the requirements for high-grade stressed structural materials. Therefore, in a second trial, we investigate the influence of the alloying element Zr (which was already proven to increase the strength as well as the ductility of a single-phase Mo-Si alloy) on three-phase Mo-Si-B alloys.

引用

页码：301 / 306

页数：6

共 20 条

[1]

Berczik D.M., 1997, US Patent, Patent No. [5.595.616, 5595616]

[2]

Berczik D.M., 1997, US Patent, Patent No. [5.693.156, 5693156]

[3] Oxidation behavior of Mo-Si-B-(X) alloys: Macro- and microalloying (X= Cr, Zr, La2O3) [J].

Burk, S. ;

Gorr, B. ;

Krueger, M. ;

Heilmaier, M. ;

Christ, H. -J. .

JOM, 2011, 63 (12) :32-36

[4] A computational search for ductilizing additives to Mo [J].

Geller, CB ;

Smith, RW ;

Hack, JE ;

Saxe, P ;

Wimmer, E .

SCRIPTA MATERIALIA, 2005, 52 (03) :205-210

[5]

Guha A., 1985, METALS HANDBOOK MECH, V8, P132

[6] Phase continuity in high temperature Mo-Si-B alloys: A FIB-Tomography Study [J].

Hassomeris, O. ;

Schumacher, G. ;

Krueger, M. ;

Heilmaier, M. ;

Banhart, J. .

INTERMETALLICS, 2011, 19 (04) :470-475

[7] DIRECT VERSUS INDIRECT DISPERSION HARDENING [J].

HAZZLEDINE, PM .

SCRIPTA METALLURGICA ET MATERIALIA, 1992, 26 (01) :57-58

[8]

Heilmaier M, 2010, MATER SCI FORUM, V633-634, P549, DOI 10.4028/www.scientific.net/MSF.633-634.549

[9]

Hochmuth C., 2012, UNPUBLISHED RESEARCH

[10] Assessment of the high temperature deformation behavior of molybdenum silicide alloys [J].

Jehanno, P. ;

Heilmaier, M. ;

Saage, H. ;

Boening, M. ;

Kestler, H. ;

Freudenberger, J. ;

Drawin, S. .

MATERIALS SCIENCE AND ENGINEERING A-STRUCTURAL MATERIALS PROPERTIES MICROSTRUCTURE AND PROCESSING, 2007, 463 (1-2) :216-223

← 1 2 →