Chapter 7: FEM of Rotary Sinter-Forging of Cylindrical Preforms

2021 ◽  
pp. 128-144
Keyword(s):  
Sinter Forging

Microhardness Enhancement in Fully Dense Fe-Based Nanophase Metallic Alloys

1995 ◽  
Vol 400 ◽  
Author(s):  
L. He ◽  
E. Ma
Keyword(s):  
Grain Size ◽  
High Energy ◽  
Metallic Alloys ◽  
Full Density ◽  
Strengthening Effect ◽  
Two Phase ◽  
Grain Sizes ◽  
Sinter Forging ◽  
Interphase Boundaries ◽  
Energy Ball

AbstractNano-grained Fe-29Al-2Cr intermetallic and Fe-Cu two-phase composites have been consolidated to full density from powders produced by high-energy ball milling, using a sinter forging procedure developed recently in our laboratory. Grain sizes remained within nanophase range (<100 nm) after consolidation. Microhardness tests of Fe-29Al-2Cr samples consolidated to different density levels indicate a significant strengthening effect due to nanoscale grain size and a monotonic microhardness increase with decreasing residual porosity. Fully dense Fe-Cu composites exhibit enhanced microhardness as compared with rule-of-mixtures predictions, which may be attributable to interface strengthening at fcc-bcc interphase boundaries.

ChemInform Abstract: Submicrometer Transparent Alumina by Sinter Forging Seeded γ- Al2O3 Powders.

ChemInform ◽  
2010 ◽  
Vol 27 (18) ◽  
pp. no-no
Author(s):  
O.-H. KWON ◽  
C. S. NORDAHL ◽  
G. L. MESSING
Keyword(s):  
Sinter Forging ◽  
Transparent Alumina

Semisolid Sinter-Forging of Hyper-Eutectic Al-Si Alloy Using Rapid Resistance Heating

2010 ◽  
Vol 654-656 ◽  
pp. 1408-1411
Author(s):  
Seijiro Maki ◽  
Masayuki Noda ◽  
Eitoku Nakanishi
Keyword(s):  
Mechanical Properties ◽  
Alloy Powder ◽  
Green Compact ◽  
Resistance Heating ◽  
Heating Condition ◽  
Semisolid State ◽  
Sinter Forging ◽  
Primary Si

In casting of hyper-eutectic Al-Si alloys, primary Si grains often grow, which deteriorates mechanical properties of the castings. In this study, an attempt was made to obtain hyper-eutectic Al-Si alloy parts without coarse primary Si grains by taking another route of sinter-forging. The sinter-forging taken up here is semisolid one. In this sinter-forging, a green compact billet of hyper-eutectic Al-25mass% Si alloy powder is rapidly resistance-heated into a semisolid state to promote the sintering and then upset-forged into a disc shape, and the performance was examined by paying special attention to the behavior of primary Si grains in the relation to the resistance heating condition.

Densification of Bi1.8(Pb)0.35Sr1.9Ca2.1Cu3Oxand Texture Development through Sinter-Forging

1993 ◽  
Vol 32 (Part 1, No. 10) ◽  
pp. 4490-4495 ◽  
Author(s):  
Anna Tampieri ◽  
Roberto Masini ◽  
Lucangelo Dimesso ◽  
Stefano Guicciardi ◽  
M. Cristina Malpezzi
Keyword(s):  
Texture Development ◽  
Sinter Forging
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