Diffusion of boron in alloys
Creators
- 1. Univ. of Science and Technology, Beijing (China). Dept. of Material Physics
Description
By means of particle tracking autoradiography (PTA), the diffusion coefficients of boron between 900 and 1,200 C were measured in 04MnNbB steel, 25MnTiB steel, Ni-B, Fe-30%Ni-B and Fe-3%Si-B alloys, and the frequency factor D0 and activation energy Q were obtained respectively. The experiment results indicated that there was an obvious difference between the present result and the result obtained by Busby (in 1953). It was found that the boron diffusivity in γ-Fe increased as Ni was added. The diffusivity of boron in Fe-3%Si-B alloy with b.c.c. structure was much slower than one obtained by Busby in α-Fe (1954), which, however, was much faster than the results obtained in γ-Fe (with f.c.c. structure). Based on the present data of boron diffusion coefficients, the mechanism of segregation of boron to grain boundaries is discussed
Additional details
Publishing Information
- Journal Title
- Acta Metallurgica et Materialia
- Journal Volume
- 43
- Journal Issue
- 4
- Journal Page Range
- p. 1693-1699.
- ISSN
- 0956-7151
- CODEN
- AMATEB
INIS
- Country of Publication
- United States
- Country of Input or Organization
- United States
- INIS RN
- 26058611
- Subject category
- S36: MATERIALS SCIENCE;
- Descriptors DEI
- ACTIVATION ENERGY; AUTORADIOGRAPHY; BORON ALLOYS; CRYSTAL STRUCTURE; DIFFUSION; IRON ALLOYS; MANGANESE ALLOYS; NICKEL ALLOYS; NIOBIUM ALLOYS; SAMPLE PREPARATION; SEGREGATION; SILICON ALLOYS; TITANIUM ALLOYS
- Descriptors DEC
- ALLOYS; ENERGY; TRANSITION ELEMENT ALLOYS