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Preheating Modeling of Forming Region and Design of Electrode Structure During Integral Electric Hot Incremental Forming [PDF]

Nanomaterials
Recently, integral electric hot incremental forming technology has been proposed to form hard-to-form sheet metals and to eliminate some defects obtained through the local heating method via current, such as inhomogeneous temperature distribution, arc ...
Zhengfang Li, Lijia Liu, Jiangpeng Song, Shuang Wu, Li Liu, Xinhao Zhai   +5 more
doaj   +2 more sources

Investigation into the Hot-Forming Limit for 22MnB5 Hot-Forming Steel under a Stamping Process

Metals
Hot-forming technology for 22MnB5 hot-forming steel (22MnB5 HF steel) plates has been widely used in the automobile manufacturing industry in recent years.
Wenwu He, Bin Yang, Xuezhong Zhang, Min Li, Shuli Sun, Bao Wang, Qingxian Ma   +6 more
doaj   +2 more sources

Hot forming recrystallization kinetics in steel [PDF]

Metalurgija, 2010
The theory of kinetics of static recrystallization of steel during hot forming links the phenomenon to certain critical strain, grain size, strain rate, activation energy and temperature. The basic description is provided by the Avrami equation.
J. Kliber, R. Fabík, I. Vitez, K. Drozd
doaj   +1 more source

Cracking behavior and mechanism of the layered microstructure of Ti2AlNb-based alloy containing large stripped α2 and O phases

Journal of Materials Research and Technology, 2022
Ti2AlNb-based alloys have complex phase compositions and are sensitive to temperature changes. This makes it easy to form a gradient microstructure, especially during the hot-working of large thin-walled workpieces, owing to local phase transition ...
Wei Tang, Bin Shao, Yingying Zong, Jiwei Wang   +3 more
doaj   +1 more source

The effect of 0.02–0.37 strain on the precipitation law of O phase colonies in Ti2AlNb-based alloy during aging

Journal of Materials Research and Technology, 2023
O phase is the main strengthening phase of the lightweight high-temperature structural material—Ti2AlNb-based alloy, its morphology, size and distribution have significant impact on the mechanical properties of the alloy.
Wei Tang, Bin Shao, Yingying Zong
doaj   +1 more source

Fabrication of NiAl alloy hollow thin-walled component through hot gas forming of Ni/Al laminated tube and conversion process

Journal of Materials Research and Technology, 2023
The NiAl intermetallic compounds have higher service temperature and lower density than traditional Ni-based super-alloy. In this work, for overcoming the fabricating bottleneck of NiAl alloy hollow thin-walled component, a typical NiAl alloy square ...
Bao Wang, Dongjun Wang, Shuai Wang, Jie Zhao, Gang Liu   +4 more
doaj   +1 more source

Study on fast gas forming with in-die quenching for titanium alloys and the strengthening mechanisms of the components

Journal of Materials Research and Technology, 2022
The rapid development of the aerospace industry has led to a dramatic increase in the demand for complex thin-walled structural parts made of titanium alloys.
Kexin Dang, Kehuan Wang, Wentao Chen, Gang Liu   +3 more
doaj   +1 more source

Damage evolution of titanium alloy laser-welded joint during hot deformation: Experiment and modeling

Journal of Materials Research and Technology, 2023
The damage evolution of TA15 titanium alloy laser-welded joint during hot deformation was studied by tensile tests and the GTN model. Tensile tests of the welded joint at 900 °C with different strain rates were carried out, and the evolution of cracks ...
Di Wu, Kehuan Wang, Baosheng Liu, Haitao Qu, Xiaosong Wang, Gang Liu   +5 more
doaj   +1 more source

The evolution of microstructure and mechanical properties at elevated temperature of cast Al–Li–Cu–Mg alloys with Ni addition

Journal of Materials Research and Technology, 2020
The effect of Ni content on the microstructure and mechanical properties at elevated temperature of cast Al–2.5Li–1Cu–1.5Mg–xNi alloys (x = 0, 0.2, 0.4 and 0.8 wt.%) was investigated.
Xuejian Zhang, Hongwei Wang, Chunming Zou, Zunjie Wei, tao Chang   +4 more
doaj   +1 more source

Study on the Phase Selection and Debye Temperature of Hyper-Peritectic Al-Ni Alloy under High Pressure

Metals, 2021
The phase selection of hyper-peritectic Al-47wt.%Ni alloy solidified under different pressures was investigated. The results show that Al3Ni2 and Al3Ni phases coexist at ambient pressure, while another new phase α-Al exists simultaneously when solidified
Xiaohong Wang, Zhipeng Chen, Duo Dong, Dongdong Zhu, Hongwei Wang, Zunjie Wei   +5 more
doaj   +1 more source