Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science

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Deformation and failure of Zr57Nb5Al10Cu15.4Ni12.6/W particle composites under quasi-static and dynamic compression
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 35 - Trang 3439-3444 - 2004
T. Jiao, L. J. Kecskes, T. C. Hufnagel, K. T. Ramesh
We have investigated the mechanical behavior of a composite material consisting of a Zr57Nb5Al10Cu15.4Ni12.6 metallic glass matrix with 60 vol pct tungsten particles under uniaxial compression over a range of strain rates from 10−4 to 104 s−1. In contrast to the behavior of single-phase metallic glasses, the failure strength of the composite increases with increasing strain rate. The composite sho...... hiện toàn bộ
Effect of Treatment Time on the Microstructure of Austenitic Stainless Steel During Low-Temperature Liquid Nitrocarburizing
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 45 - Trang 4525-4534 - 2014
Jun Wang, Yuanhua Lin, Qiang Zhang, Dezhi Zeng, Hongyuan Fan
The effect of treatment time on the microstructure of AISI 304 austenitic stainless steel during liquid nitrocarburizing (LNC) at 703 K (430 °C) was investigated using X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). Experimental results revealed that the modified layer was covered with the alloy surface and the modified layer depth increased...... hiện toàn bộ
The alpha ⇄ gamma transformation mechanisms in iron particles
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 18 - Trang 1151-1153 - 2013
Roch Angers, Dominique Dubé
Failure behavior of heat-affected zones within HSLA-100 and HY-100 steel weldments
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 32 - Trang 2229-2237 - 2001
D. Chae, C. J. Young, D. M. Goto, D. A. Koss
The deformation and fracture behavior of simulated heat-affected zones (HAZ) within HSLA-100 and HY-100 steel weldments has been studied as a function of stress state using notched and unnotched axisymmetric tensile specimens. For the case of the HSLA-100 steel, the results for fine-grained, as well as coarse-grain HAZ (CGHAZ) material, show that, despite large differences in the deformation behav...... hiện toàn bộ
Tính không đồng nhất trong biến dạng trên các mặt cắt ngang của hợp kim magiê được chế biến bằng phương pháp xoắn áp lực cao Dịch bởi AI
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 42 - Trang 3013-3021 - 2011
Roberto B. Figueiredo, Maria Teresa P. Aguilar, Paulo R. Cetlin, Terence G. Langdon
Các đĩa của hợp kim magiê AZ31 được ép đùn đã được xử lý bằng phương pháp xoắn áp lực cao (HPT) ở áp suất 6.0 GPa qua 1/4, 1 và 5 vòng quay, ở cả nhiệt độ phòng (296 K (23 °C)) và ở nhiệt độ cao hơn là 463 K (190 °C). Các mặt cắt ngang của các đĩa đã được kiểm tra sau khi chế biến, và cho thấy có một mức độ không đồng nhất cao trong tất cả các mẫu. Sự không đồng nhất này được thể hiện qua tính chấ...... hiện toàn bộ
Origin of Extended Tensile Ductility of a Fe-28Mn-10Al-1C Steel
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 40 - Trang 1520-1523 - 2009
J.D. Yoo, S.W. Hwang, K.-T. Park
Fully austenitic Fe-28Mn-10Al-1.0C steel with high stacking fault energy exhibited exceptionally high uniform elongations (85 to 100 pct) and total elongations (100 to 110 pct) at room temperature. The origin of such exceptional room-temperature ductility was rationalized in terms of strain accommodation mechanisms of reduction of glide plane spacing in Taylor lattice (TL) formation at low strains...... hiện toàn bộ
A Critical Assessment of Cyclic Softening and Hardening Behavior in a Near-α Titanium Alloy During Thermomechanical Fatigue
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - - 2016
Kartik Prasad, Rajdeep Sarkar, K. Bhanu Sankara Rao, M. Sundararaman
High-Temperature Fatigue of a Hybrid Aluminum Metal Matrix Composite
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 45 - Trang 501-509 - 2013
J. T. Clark, P. G. Sanders
An aluminum metal matrix composite (MMC) brake drum was tested in fatigue at room temperature and extreme service temperatures. At room temperature, the hybrid composite did not fail and exceeded estimated vehicle service times. At higher temperatures (62 and 73 pct of the matrix eutectic), fatigue of a hybrid particle/fiber MMC exhibited failure consistent with matrix overloading. Overaging of th...... hiện toàn bộ
Influence of temperature transients on the hot workability of a two-phase gamma titanium aluminide alloy
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - - 1996
V. Seetharaman, S. L. Semiatin
Hot Deformation Behavior and Microstructural Evolution of an Fe-Cr-W-Mo-V-C Steel
Metallurgical and Materials Transactions A: Physical Metallurgy and Materials Science - Tập 50 - Trang 2342-2355 - 2019
Shanju Zheng, Xiaohong Yuan, Xing Gong, Thiquynhxuan Le, A. V. Ravindra
The hot compression deformation behavior and microstructural evolution of an Fe-Cr-W-Mo-V-C steel have been investigated by hot compression deformation experiments carried out at 900 °C to 1150 °C and under strain rates varying from 10 to 0.1 s−1. The results revealed that the flow stress decreased with decreasing strain rate, while increasing deformation temperature led to a lower flow stress. An...... hiện toàn bộ
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