| 1. |
|
|
| 2. |
|
|
| 3. |
- Navara, Eric, et al.
(författare)
-
The effect of alloying additions on the inclusion-matrix bond in oxide dispersion hardened alloys
- 1974
-
Ingår i: IV. Medzinárodná Konferencia o Práskovej Metalurgii, Československá Socialistická Republika 1974, [Vysoké Tatry, 1 - 3.X]. - : Slovenska Vedeckotechnicka Spolocnost; Kosice. ; , s. 265-280
-
Konferensbidrag (refereegranskat)abstract
- The factors contributing to strength and ductility of a series of Fe-Al2O3 dispersion hardened alloys are investigated. It is found that the bonding strength between the phases is of particular importance in alloys produced by powder metallurgy techniques, and this aspect of the problem is studied in detail using electron microscopy. The nature of bonding strength is then discussed and a model of diffuse interface postulated in order to account for improvements in the work of adhesion, caused by alloying the matrix with interface active elements. The diffuse-interface bond increases the strain required for the onset of void formation, and in extreme cases fracture occurs within the particles
|
|
| 4. |
- Porter, D.A., et al.
(författare)
-
The mechanism of deformation of pearlite
- 1979
-
Ingår i: Mechanisms of deformation and fracture. - Oxford : Pergamon Press. - 0080242588 ; , s. 87-96
-
Konferensbidrag (refereegranskat)
|
|
| 5. |
- Roberts, W., et al.
(författare)
-
An in situ sem study of void development around inclusions in steel during plastic deformation
- 1976
-
Ingår i: Acta Metallurgica. - : Elsevier BV. - 0001-6160. ; 24:8, s. 745-758
-
Tidskriftsartikel (refereegranskat)abstract
- Void development around ellipsoidal inclusions (mainly MnS) in steel has been investigated by means of in situ SEM tensile tests using specimens such that the tensile axis is the short-transverse direction in rolled plate. By simultaneous video recording of the microscope image and a load-elongation curve, the nucleation and growth of cavities has been monitored quantitatively. Careful investigation reveals that the behaviour at a free surface as regards cavitation is rather accelerated in comparison to that observed internally; this can be reconciled with a modified interfacial stress distribution around those hard particles in a plastically deformed matrix which lie at or near the specimen surface. In addition, some observations pertaining to the coalescence of cavities as a prerequisite to terminal ductile separation, are described and considered.
|
|
