Results 31 to 40 of about 6,832 (262)

A Study on the Brittle-to-Ductile Transition Temperature of Forged β-Solidifying TiAlMn and TNM Alloys

Crystals, 2022
To further determine the brittle-to-ductile transition temperature, the microstructures and mechanical properties of typical forged β-solidifying Ti-42Al-5Mn (TiAlMn) and Ti-43Al-4Nb-1Mo-0.5B (TNM) alloys were studied.
Xiang Su, Pei Li, Hongjie Qu, Chenming Feng, Rui Hou, Weidong Song, Bo Tian, Hao Xu   +7 more
doaj   +1 more source

Characterizing the Brittle Fracture and the Ductile to Brittle to Ductile Transition of Heat-Treated Binary Aluminum-Lithium Alloys

Engineering Transactions, 2015
An aluminum alloy containing 2.6wt.% Li and 0.09wt.% Zr exhibited a very low value in tensile ductility consistently prior to the peakaged strength independent of thermal treatment.
J.M. Fragomeni
doaj   +1 more source

Critical Depth of Hard Brittle Materials on Nano Plastic Forming

Journal of Advanced Mechanical Design, Systems, and Manufacturing, 2008
This paper reports on ductile to brittle transition of hard brittle materials in nano plastic forming process. Formability of some hard brittle materials, i.e., glasses, silicon and quartz wafers, were examined through a specially designed and developed ...
Masahiko YOSHINO, Aravindan SIVANANDAM, Yuki KINOUCHI, Takashi MATSUMURA   +3 more
doaj   +1 more source

Brittle–ductile transitions in polycrystalline tungsten

Philosophical Magazine, 2010
The strain rate dependence of the brittle-to-ductile transition (BDT) temperature was investigated in notched and un-notched miniature bars made of high-purity polycrystalline tungsten and in notched bars of less-pure sintered material. The activation energy, E BDT, for the process controlling the BDT in pure tungsten was equal to 1.0 eV both in un ...
Giannattasio, A, Yao, Z, Tarleton, E, Roberts, S   +3 more
openaire   +1 more source

Dislocation dynamics and brittle-to-ductile transitions

Materials Science and Engineering: A, 1993
Abstract The validity of different types of models for crack-dislocation interactions and their effect on fracture is discussed. The brittle-to-ductile transition (BDT) in precracked silicon and sapphire can be described by a two-stage dynamic model based on dislocation motion to and around the crack tip.
Roberts, S, Ellis, M, Hirsch, P
openaire   +1 more source

Burial depth interval of the shale brittle–ductile transition zone and its implications in shale gas exploration and production

Petroleum Science, 2017
Brittleness and ductility of shale are closely related to shale gas exploration and production. How to predict brittleness and ductility of shale is one of the key issues in the study of shale gas preservation and hydraulic fracturing treatments.
Yu-Song Yuan, Zhi-Jun Jin, Yan Zhou, Jun-Xin Liu, Shuang-Jian Li, Quan-You Liu   +5 more
doaj   +1 more source

Improvement of Hoek-Brown strength criterion considering critical state for rock brittle-ductile transition

Meitan xuebao
The Hoek-Brown strength criterion is widely used in the field of rock engineering, but its application in the brittle-to-ductile transition of deep rock is relatively limited.
Jing ZHANG, Zonghong ZHOU, Yansong HAN, Hai LIU, Zhihua OUYANG   +4 more
doaj   +1 more source

Application of a Tensile Test Method to Identify the Ductile-Brittle Transition of Caramel

Foods, 2022
During cutting of foods, tensile stresses in front of the blade are responsible for the separation of the material. Therefore, tensile tests can be helpful to gain knowledge on deformation properties related to pre-fracture cutting behavior as well as on
Dennis Schab, Lydia Tiedemann, Harald Rohm, Susann Zahn   +3 more
doaj   +1 more source

Study on impact properties of Ti6211 titanium alloy at different temperatures [PDF]

MATEC Web of Conferences, 2020
In this paper, Charpy notched pendulum test was used to study the impact properties of Ti6211 titanium alloy at -60 ℃, -40 ℃, -20 ℃, 23 ℃, 100 ℃, 200 ℃ and 300 ℃, respectively, and the fracture morphology was analyzed.
Tian Yanwen, Hao Fang, Xu Enen, Du Junqi
doaj   +1 more source

Ductile-to-brittle transition in aluminum alloys

Materials Research Letters
Here we exploited room (298 K) – and cryogenic (77 K) – temperature mechanical behaviors of binary Al-Mg alloys across a wide range of magnesium concentration (i.e. 2.8–13.1 at.%). We observed ductile-to-brittle transition at 77 K as Mg content increases
Dengshan Zhou, Xiuzhen Zhang, Xueyong Pang, Zitong Zhao, Xinren Chen, Shaolou Wei, Chao Yang, Wu Gong, Stefanus Harjo, Rongguang Li, Deliang Zhang, Gaowu Qin   +11 more
doaj   +1 more source