Results 91 to 100 of about 264,889 (342)
Journal of Materials Research and Technology, 2020 In this study, the hot deformation behavior of an as-cast and hot rolled β21S alloy (Ti–15Mo–3Al–3Nb–0.2Si) was investigated. Based on the hot compression tests, which were conducted at high temperatures (800–1200 °C) using different strain rates (10−2 ...
Chan Woong Park +5 more
doaj +1 more source
Laboratory verification of predicted permanent deformation in asphalt materials following climate change. [PDF]
, 2011 In the past a change in temperature of 5°C most often occurred over intervals of thousands of years. According to estimates by the IPCC, in the XXI century is expected an increase in average temperatures in Europe between 1.8 and 4.0°C in the best case ...
Anastasio, Sara
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An experimental investigation of the behaviour of steels over large temperature and strain rate ranges [PDF]
, 2013 During forging and machining manufacturing processes, the material is subject to large strains at high strain rates which provoke local heating and microstructural changes.
GERMAIN, Guénaël +3 more
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Advanced Engineering Materials, EarlyView.The present study investigates recycling of NiTi shape memory alloys via vacuum induction melting. An ingot was synthesized from elemental Ni and Ti and subjected to three subsequent remelting cycles. Remelting increases process durations and impurity levels and adversely affects microstructures and functional properties.
Sakia Sophia Noorzayee +7 more
wiley +1 more source
Hot Deformation Behavior and Hot Rolling Properties of a Nano-Y2O3 Addition Near-α Titanium Alloy
, 2021 The hot deformation behavior and hot rolling based on the hot processing map of a nano-Y2O3 addition near-α titanium alloy were investigated. The isothermal compression tests were conducted at various deformation temperatures (950–1070 °C) and strain ...
Yuyong Chen +4 more
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Advanced Engineering Materials, EarlyView.Graphene nanoplatelet (0.1 wt.%) reinforcement significantly enhances the performance of β Ti‐28Nb‐35.4Zr alloy. Grain refinement, reduced water contact angle, and improved surface characteristics promote osteoblast adhesion and complete surface coverage after 7 days.
Khurram Munir +5 more
wiley +1 more source
Effect of in-situ TiC particles on hot deformation behavior of spray formed 7075 Al alloy
, 2013 The hot deformation behavior of in-situ reactive spray formed 7075+4.4%TiC Al alloy and spray formed 7075 Al alloy was studied by isothermal compression test on a Gleeble-1500 thermal-mechanical simulator.
Li, Zhi-peng, Liu, Hui-min, Wang, Hao
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Characteristics and thermomechanical modes of aluminum alloys hot deformation [PDF]
, 2019 The widespread use of aluminum alloys is determined by their technical, physical and mechanical properties. The purpose of this paper is to present the characteristics of thermomechanical models of aluminum alloys hot deformation and to explain how they ...
Pylypets, Mykhaylo, Shvets, Lyudmyla
core
Flow Stress Behavior of the Normalized and Tempered as-Cast 42CrMo Steel during Hot Deformation
, 2011 The purpose of this study is to find the hot deformation behavior of as-cast 42CrMo steel. The thermal simulation experiments of as-cast 42CrMo steel were done on the Gleeble-1500 thermo-mechanical simulation machine.
Yong Tang Li +3 more
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Hot Deformation Behavior and Hot Processing Map of 4Cr5MoSiV1 Steel
Material Sciences, 2013 利用Gleeble-1500D热模拟试验机对4Cr5MoSiV1钢在950℃~1100℃，应变速率为0.01~10.0 s−1，最大应变量为50%的条件下进行了热压缩实验。结果表明：真应变–应力曲线在应变速率为10 s−1时出现波动现象；经计算得到4Cr5MoSiV1钢的激活能为416.16 kJ·mol−1，建立该合金的本构方程形式为，经验证与实验结果吻合较好；基于动态材料模型建立的热加工图可分为两个区域，在低应变速率0.01 s−1和0.1 s−1时为加工稳定区，且变形温度为1050℃时，能量耗散功率达到最大值0.3；在高应变速率1 s−1和10 s−1时为加工失稳区。结合变形组织的分析，合金在稳定区下具有较好的热加工性能。 The hot deformation characteristics
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