Concept of Collective Pinning Applied to Solution Hardening of Crystals

1986 ◽  
Vol 56 (13) ◽  
pp. 1381-1384 ◽  
Author(s):  
E. H. Brandt
Keyword(s):  
Solution Hardening ◽  
Collective Pinning

A Tem Study of Slip Systems in MoSi2/WSi2 Alloys

1991 ◽  
Vol 49 ◽  
pp. 942-943
Author(s):  
Stuart A. Maloy
Keyword(s):  
Solid Solution ◽  
Solid Solution Hardening ◽  
Slip Systems ◽  
High Melting ◽  
Group 14 ◽  
Solution Hardening ◽  
Brittle To Ductile Transition ◽  
High Melting Temperature ◽  
Tetragonal Unit Cell ◽  
Structural Applications

MoSi2 has recently been investigated as a potential material for high temperature structural applications. It has excellent oxidation resistance up to 1700°C, a high melting temperature, 2030°C, and a brittle-to-ductile transition temperature at 900-1000°C. WSi2 is isomorphous with MoSi2 and has a body-centered tetragonal unit cell of the space group 14/mmm. The lattice parameters are a=3.20 Å and c=7.84 Å for MoSi2 and a=3.21 Å and c=7.88 Å for WSi2. Therefore, WSi2 was added to MoSi2 to improve its strength via solid solution hardening. The purpose of this study was to investigate the slip systems in polycrystalline MoSi2/WSi2 alloys.

scholarly journals Solution hardening due to fixed and rotating impurity—Vacancy dipoles in NaCl crystals

1984 ◽  
Vol 64 (2) ◽  
pp. 223-228 ◽  
Author(s):  
A. Tóth ◽  
T. Keszthelyi ◽  
P. Kálmán ◽  
J. Sárközi
Keyword(s):  
Solution Hardening

Collective pinning theory and magnetic pinning interaction in NbTi

1994 ◽  
Vol 194-196 ◽  
pp. 1817-1818 ◽  
Author(s):  
C. Bormio Nunes ◽  
D.G. Pinatti
Keyword(s):  
Collective Pinning

Phase Constitution and Transformation Behavior of Ni2MnGa-Cu2MnAl Pseudobinary Intermetallic Compounds

2005 ◽  
Vol 475-479 ◽  
pp. 841-844 ◽  
Author(s):  
Hideki Hosoda ◽  
Yuji Higaki ◽  
Shuichi Miyazaki
Keyword(s):  
Continuous Solid Solution ◽  
Lattice Parameter ◽  
The Other ◽  
Phase Decomposition ◽  
Martensitic Transformation Temperature ◽  
Transformation Behavior ◽  
Solution Hardening ◽  
Phase Constitution ◽  
Heat Treated ◽  
Curie Temperature Tc

The phase constitution, lattice parameter, martensitic and magnetic transformation behavior and hardness of the Ni2MnGa-Cu2MnAl pseudobinary alloys designed as (Ni2MnGa)x(Cu2MnAl)1-x were investigated in order to improve magnetic properties of Ni2MnGa. It was revealed that L21 Ni2MnGa and Cu2MnAl make a continuous solid solution of (Ni,Cu)2Mn(Ga,Al) when heat treated at 1073K, and that the lattice parameter of the L21 phase increases monotonously with increasing the compositional ratio x, that is, the amount of Cu2MnAl. Curie temperature TC also increases with increasing x. On the other hand, the martensitic transformation temperature of Ni2MnGa seems to decrease rapidly by adding Cu2MnAl. Hardness of the alloys heat-treated at 1073K ranges from HV200 to HV370, and solution hardening was recognized by mixing. When heat treated at 773K, a phase decomposition from L21 phase to Cu9Al4 and b-Mn was confirmed in the Cu2MnAl-rich alloys. The phase decomposition causes a decrease in the lattice parameter of L21 phase and TC and a significant increase in hardness.

Solid solution hardening and softening in MoSi2 alloys

2001 ◽  
Vol 44 (6) ◽  
pp. 879-884 ◽  
Author(s):  
A.A Sharif ◽  
A Misra ◽  
J.J Petrovic ◽  
T.E Mitchell
Keyword(s):  
Solid Solution ◽  
Solid Solution Hardening ◽  
Solution Hardening ◽  
Hardening And Softening

Solid-solution hardening in b c c metals

1980 ◽  
Vol 15 (1) ◽  
pp. 253-254 ◽  
Author(s):  
M. Z. Butt ◽  
P. Feltham
Keyword(s):  
Solid Solution ◽  
Solid Solution Hardening ◽  
Solution Hardening
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