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Online since: December 2022
Authors: Kyoung Hee Gu, Gum Hwa Lee, Ki Woo Nam, Chang Seok Oh
The residual stress affects ahml: the larger the residual stress, the larger ahml will be.
The aspect ratio also affects ahlm.
The chemical compositions and mechanical properties are listed in Table 1 and 2, respectively.
C Si Mn P S Cu Ni Cr 0.57 0.25 0.86 0.022 0.019 0.3 0.11 0.82 Table 2 Mechanical properties.
Kong, The needs of power spectral density in fatigue life prediction of heavy vehicle leaf spring, Journal of Mechanical Science and Technology, 34 (2020) 2341-2346
Online since: October 2014
Authors: Elena Manuela Stanciu, Adrian Catalin Pavalache, Gabriel Marius Dumitru, Raúl López, Dan Petre, Mihai Vasile
The use of laser cladding (LC) technology for the improvement of surface properties in various mechanical design applications has given rise to the development of application-oriented composites.
Properties such as hardness, wear resistance, and strength are influenced primarily by the WC grain size and volume fraction and, in the case of laser cladded coatings, also by varying the porosity and (often unintentionally) the carbide and binder phase composition.
Materials One of the best methods by which the mechanical properties of the deposited layer can be improved is reducing the grain size of the grain size of the material.
Table 3 Penetration and heat affected zone extent measurements Exp.Set.
At high heat input values the tungsten carbide tends to grow thus improving the consolidation effect upon the microstructure of the cladded layer, further investigations in terms of microhardness and tribological properties will be achieved for further papers.
Online since: October 2009
Authors: Wolfgang Skorupa, Daniel Kropman, Tiit Kärner, E. Mellikov, K. Lott, Arthur Medvid, S. Zvyagin, E. Cizmar, M. Ozerov, J. Woznitsa, S. Prucnal, Tony Laas, Ivo Heinmaa
The interface properties may be improved by laser irradiation.
An attempt to improve the interface properties by laser irradiation (λ=520nm,10Mw/cm2) was made as well.
Their g-factors value coincide(g═1.999) but the signals intensity are different.
Their g-factor coincide (2.006).
Modification of the interface properties by laser irradiation allows to improve the interface properties.
Online since: January 2011
Authors: Dong Bing Geng, Hong Jun Guo, San Qing Zhang
BMI possess many desirable properties, which make them very attractive for various applications in high-temperature structural composites for aerospace.
These properties include high strength and modulus, excellent chemical radiation and corrosion resistance, good retention of thermo-mechanical properties even after long ageing times at 250°C [4-6].
Yue, Static and Dynamic Mechanical Properties of Modified and Cyanate Ester Interpenetrating Polymer Networks.
Thermal Behavior and Properties of Polymer.
Zhao, Thermal and Morphological Properties of Polyetherimide Modified Bismaleimide Resins.
Online since: October 2014
Authors: Li Min Zhang
For multilayer welding, welding droplet overlapping is an important factor affecting the dilution rate and the surfacing layer thickness.
The main advantages of surfacing technology are low cost, but there are welding defects with poor ductility, so its mechanical properties should be improved.
(4) With good mechanical properties, interlayer achieves metallurgical bonding.
At the same time, the microstructure and properties of the material is uniform, higher than that the traditional casting and forging parts.
The forging load change and not the same style of surfacing welding samples, the basic affecting factors are the same.
Online since: September 2005
Authors: Kyu Hwan Oh, Chang Gil Lee, Sung Joon Kim, Heung Nam Han, Woong Ho Bang, Suk Hoon Kang, Jae Hyung Cho
In thermo-mechanical affected zone, the change in grain size was not significant, however, large number of low angle grain boundaries were observed, which seems to be concerned with the formation of subgrains due to the development of dislocation cells.
The advantages of the solid-state FSW process also encompass better mechanical properties, low residual stress and deformation, weightsavings, and reduced occurrence of defects [1,2].
Microstructure evolution was observed at the three positions of weld zone (WZ), thermomechanically affected zone (TMAZ) and base metal (BM) as shown in Fig. 1.
The welding speed seems to be a decisive factor in determining the shape of TMAZ.
This result suggests that tool rotation rate is a decisive factor in determining the energy input rate from tool shoulder and probe to substrates.
Online since: January 2005
Authors: Zhen Hua Chen, Meiyan Zhan, Weijun Xia, Hong Ge Yan
The factors that contributed to the evolution of SiC particles distribution feather during plastic deformation were analyzed.
Introduction The attractive physical and mechanical properties of metal matrix composites(MMCs), such as high specific modulus, specific strength, wear resistance and low thermal expansion coefficient etc., have been documented extensively [1-5].
However, the subsequent cold and hot deformation are of great effects on the mechanical properties of the products[7].
As to the inhomogeneous distribution of SiCp of the as-deposited SiCp/7075Al in the deposition direction, there may be two main factors that affect the uniform distribution of SiCp.
(2) There may be two main factors, which result in the clustering distribution of SiCp during deformation.
Online since: November 2005
Authors: Yasuo Ochi, Takashi Matsumura, Kiyotaka Masaki
The fatigue properties of the SP-treated material were compared with fatigue properties of the non-peened material, the hot isostatic pressure (HIP) treated material and the semi-liquid (SL) die casting material. the main conclusions obtained were, (1) The fatigue properties of SP-treated material is most excellent in all materials. (2) The fatigue life property of AC4CH alloys is significantly affected by fatigue crack initiation behavior.
From the results, it was clear that the fatigue properties of AC4CH were improved remarkably by SP treatment.
Comparison of fatigue properties between SP treated materials and HIP treated materials.
Comparison of fatigue properties between SP treated materials and SL die-casting materials.
In this section, comparison of fatigue properties between the SP treatment and SL die-casting materials were conducted.
Online since: September 2014
Authors: Mohd Fadhil Nuruddin, Zakaria Man, Afshan Asif, Lukman Ismail, Khairun Azizi Azizli
During polymerization process, the synthesis parameters such as Si/Al ratio, solid/water ratio, alkali concentration, curing temperature and curing time determine the final properties of geopolymer material [2].
Then species react with each other and undergo a polycondensation reaction to form a polymer network [3].So far the effects of NaOH concentration on the physical and mechanical properties of concrete are reported, where geopolymer is used only as a binder in the presence of sand and aggregates.
Chaudhary, “Mechanism of geopolymerization and factors influencing its development: a review,” Journal of Materials Science, vol. 42, no. 3, pp. 729–746, Jan. 2007
"Factors affecting the immobilization of metals in geopolymerizedflyash." 
"Synthesis, characterization, and mechanical properties of red mud-based geopolymers."
Online since: November 2015
Authors: Balbir Singh, Md Israr Equbal, Raj Kumar Ohdar, Pinaki Talukdar
Kaynar et al. [5] found that the cooling rate after finishing deformation stage has a significant effect on the mechanical properties.
The cooling rate after finishing deformation stage has a significant effect on the mechanical properties.
The chemical composition and mechanical properties of as received steel is given in Table 1.
Table 1 Chemical Composition and Mechanical properties of Experimental 38MnVS6 steel 38MnVS6 C Mn Si S P V UTS (MPa) CVN I.S.
ANOVA for Grey Relational Grade reveals that the cooling rate is the most significant parameter affecting the responses.
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