Secondary recrystallization of pure molybdenum wires

Ohba, Yukio

doi:10.1016/0001-6160(86)90020-9

Cited by 5 publications

(2 citation statements)

References 8 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…Until now, many emphases related to it have been put on the ductile-brittle transition temperature, recrystallization temperature increment and so on. It is found that the brittleness of molybdenum is mainly influenced by the material purity, interstitial phase, process method and heat-treatment procedure [6][7][8][9][10][11][12][13][14][15][16]. High purity and proper treatment can result in molybdenum bars with high performance in the longitudinal direction, while the other indispensable aspect, transverse mechanical property has not been effectively improved, though the transverse performance of molybdenum materials is vital to their application as important parts in many…”

Section: Introductionmentioning

confidence: 99%

The annealing characteristics of pure molybdenum bars manufactured by a modified technique

Wang¹,

Guo²,

Cao³

et al. 2008

Journal of Alloys and Compounds

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

The annealing characteristics of pure molybdenum bars manufactured by a modified technique

Wang¹,

Guo²,

Cao³

et al. 2008

Journal of Alloys and Compounds

View full text Add to dashboard Cite

“…Outros estudos envolvendo crescimento anormal de fios de metais com estrutura ccc encontraram a textura tipo fibra em torno de <110> e relacionam sua intensificação com o crescimento anormal (OHBA, 1986;GANGLI, 1991;ZIDANI et al, 2007…”

unclassified

Crescimento de grão num fio de ferro comercialmente puro trefilado a frio

Junior¹,

de²

View full text Add to dashboard Cite

This Dissertation aims follow the microstructural changes occurring during isothermal annealing of commercially-pure cold-drawn iron wire, with emphasys on grain growth phenomena. The grain size data were obtained by means of the linear intercept method. The orientations scanning were done by means of electron backscatter diffraction patterns (EBSD). Isothermal annealing was performed within the temperature range 823-1173 K for several times. The material displays full recrystallization at temperatures above 873 K. Normal grain growth was observed above 1023 K, although this growth did not evolve through longer annealing times. The results of the linear intercept method show the grain size distribution has a log-normal shape. For samples annealed above 1123 K, abnormal grain growth occurs. The first signs of secondary recrystallization appear close to the center of the wire, growing towards the surface. Changes in the wire diameter and annealing atmosphere were performed to assess the effect of these variables on abnormal grain growth. Results point out that abnormal grain growth is driven by solid-state wetting. These morphological observations were also confirmed by micro and mesotexture analyses. The microtexture also shows the presence of two major fiber texture components <001> || WD and <111> || WD, were WD is the axial wire-drawn direction. The first one is the most intense and its strengthening seems to be related with abnormal grain growth. The second one is weaker and it seems to be most related with small primary recrystallized grains. Theoretical and analytical features about grain growth are presented and discussed in light of literature and experimental results.

show abstract