Phase boundary structure of γ′-particles in Cu-10 at.% Be

1995 ◽  
Vol 43 (3) ◽  
pp. 1305-1311 ◽  
Author(s):  
V. Gröger ◽  
P. Fratzl ◽  
W. Pahl ◽  
O. Paris ◽  
G. Bischof ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Boundary Structure

Three-Dimensional Microstructure Reconstruction and Phase Boundary by Serial Sectioning and Numerical Approach

2017 ◽  
Vol 899 ◽  
pp. 395-399
Author(s):  
Daniele Aparecida Nogueira ◽  
Aline Aguiar Lopes ◽  
Wesley Luiz Conegundes ◽  
Fabiane Roberta Freitas Silva ◽  
Daniel Rodrigues ◽  
...  
Keyword(s):  
Heat Treatment ◽  
Phase Boundary ◽  
Three Dimensional ◽  
Numerical Approach ◽  
Boundary Structure ◽  
Powder Materials ◽  
Serial Sectioning ◽  
Stainless Steel 316L ◽  
Volume Fractions ◽  
Morphological Aspects

The microstructure and pores of the consolidated powder materials are important to determine the final properties of the pieces produced. Therefore, the control of their volume fractions and morphologies represent actual technological challenges. Besides the quantification of the phase and pores volume fractions there are important features related with the morphological aspects and the phase boundary structure that reveals the mechanisms of properties improvements, which are crucial for development of materials obtained by powder metallurgy techniques. In this paper, stereological measurements of pores present in the material stainless steel (316L) are obtained by combining serial sectioning technique and optical microscopy (OM). Dilatometric experiments were carried out in order to simulate heat treatment for sintering the material. The 3D microstructures are obtained by images reconstruction using numerical pixels treatment and stereological results of the porosities are presented.

Phase boundary structure in Nd–Fe–B sintered magnets

1999 ◽  
Vol 74 (14) ◽  
pp. 2056-2058 ◽  
Author(s):  
Ken Makita ◽  
Osamu Yamashita
Keyword(s):  
Phase Boundary ◽  
Boundary Structure ◽  
Sintered Magnets

Twinning, phase boundary structure and development of high coercivity in Fe-rich Sm2Co17-type magnets

2021 ◽  
Author(s):  
Haichen Wu ◽  
Zhuang Liu ◽  
Chaoyue Zhang ◽  
Qiqi Yang ◽  
Huanming Lu ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Boundary Structure ◽  
High Coercivity

Two Investigations into Grain Boundary Structure

1977 ◽  
Vol 35 ◽  
pp. 688-691
Author(s):  
P. Humble
Keyword(s):  
Grain Boundary ◽  
Dark Field ◽  
Boundary Structure ◽  
Boundary Dislocation ◽  
Bright Field ◽  
Intrinsic Structure ◽  
Weak Beam ◽  
Grain Boundary Structure ◽  
Independent Information ◽  
Diffraction Patterns

There has been sustained interest over the last few years into both the intrinsic (primary and secondary) structure of grain boundaries and the extrinsic structure e.g. the interaction of matrix dislocations with the boundary. Most of the investigations carried out by electron microscopy have involved only the use of information contained in the transmitted image (bright field, dark field, weak beam etc.). Whilst these imaging modes are appropriate to the cases of relatively coarse intrinsic or extrinsic grain boundary dislocation structures, it is apparent that in principle (and indeed in practice, e.g. (1)-(3)) the diffraction patterns from the boundary can give extra independent information about the fine scale periodic intrinsic structure of the boundary.In this paper I shall describe one investigation into each type of structure using the appropriate method of obtaining the necessary information which has been carried out recently at Tribophysics.

Sign in / Sign up

Export Citation Format

Share Document