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Online since: February 2021
Authors: Shabbar Abbas, Shaheed Khan, Khalid Mehmood, Mudassir Rauf, Sabah Zaman
This study focuses on the effect of deposition time and heat treatment on Ni3Al coatings with respect to mechanical and microstructural properties of the material.
These complex alloy coatings validate significant structural properties such as low density, increase in yield strength with temperature, high strength in relation to the specific mass, oxidation resistance and excellent creep properties [8-12].
Both coated and heat treated samples were characterized for their structure, morphology and mechanical properties.
Suuthoff, Mechanical Properties of Intermetallics at High Temperatures, Vortrag ASM Materials Week, Indianapolis, (1989)
Natesan, Critical Factors Affecting the High-Temperature Corrosion performance of iron aluminides, Mater.
These complex alloy coatings validate significant structural properties such as low density, increase in yield strength with temperature, high strength in relation to the specific mass, oxidation resistance and excellent creep properties [8-12].
Both coated and heat treated samples were characterized for their structure, morphology and mechanical properties.
Suuthoff, Mechanical Properties of Intermetallics at High Temperatures, Vortrag ASM Materials Week, Indianapolis, (1989)
Natesan, Critical Factors Affecting the High-Temperature Corrosion performance of iron aluminides, Mater.
Online since: May 2011
Authors: Yi Fang Feng, Hua Zhi Zhang, Yu Wang, Qing Jun Zuo
Reliability analysis method of slope stability
The fundamental principle of Monte-Carlo
Slope stability factor F is the function controlled and affected by numerous variables.
Corresponding stability factor Fj can be calculated from formula (1).
As all parameters affecting stability of slope are random variables, however, not all random variables have the same degree of influence, the variables having little influence can be taken as the definite values to simplify the calculation.
Physical and mechanical property index and shear strength statistics of slip soil of landslide is respectively shown in table 1and table 2.
Stability factor F is equal to 0.890.
Corresponding stability factor Fj can be calculated from formula (1).
As all parameters affecting stability of slope are random variables, however, not all random variables have the same degree of influence, the variables having little influence can be taken as the definite values to simplify the calculation.
Physical and mechanical property index and shear strength statistics of slip soil of landslide is respectively shown in table 1and table 2.
Stability factor F is equal to 0.890.
Online since: May 2012
Authors: Wen Xi Fu, Hong Chun Zheng, Yu Long Cui, Jin Bing Wei
Based on field investigations and laboratory studies, this paper discusses the factors that affected slope stability of Guantianba and suggests that some monitoring and remedial measures should be taken to protect the wealth and life of residents.
In order to evaluate the possible damages that the landslides may cause and to protect the wealth and life of residents after the first impoundment of the reservoir, it is undoubtedly necessary to investigate the influence factors of the slide.
Fig.6 Part of a house moved away Fig.7 Tensile deformation in the region C Possible triggering factors on the deformation and slip of the landslide In terms of triggering factors, it can be the combined effect of intensive rainfall, manual load at the rear edge of the landslide, vegetation, excavation and vibration of the highway.
Stability evaluation of the landslide Two samples which are slide mass a and slide mass b from the site of the Guantianba landslide were tested for index properties including water content(w), osmotic coefficient (k), specific gravity(Gs), void ratio(e), modulus of compression(E0.1-0.2), compressibility coefficient(a0.1-0.2) and the granular composition, as shown in Table 1.
Some mechanical parameters, such as cohesion(c), friction angle (φ) and the unit weight were also measured, as shown in Table 2.
In order to evaluate the possible damages that the landslides may cause and to protect the wealth and life of residents after the first impoundment of the reservoir, it is undoubtedly necessary to investigate the influence factors of the slide.
Fig.6 Part of a house moved away Fig.7 Tensile deformation in the region C Possible triggering factors on the deformation and slip of the landslide In terms of triggering factors, it can be the combined effect of intensive rainfall, manual load at the rear edge of the landslide, vegetation, excavation and vibration of the highway.
Stability evaluation of the landslide Two samples which are slide mass a and slide mass b from the site of the Guantianba landslide were tested for index properties including water content(w), osmotic coefficient (k), specific gravity(Gs), void ratio(e), modulus of compression(E0.1-0.2), compressibility coefficient(a0.1-0.2) and the granular composition, as shown in Table 1.
Some mechanical parameters, such as cohesion(c), friction angle (φ) and the unit weight were also measured, as shown in Table 2.
Online since: December 2024
Authors: Rodlian Jamal Ikhwani, Alamsyah Alamsyah, Muhammad Zubair Muis Alie, Muhammad Zhafran Juliansyah, Andi Ardianti, Muhammad Uswah Pawara
The hull shape and main dimensions of the deck barge as well as the mechanical properties of the material are listed in Table 1, Table 2 and for further visualization, Figure 2 serta Figure 3.
Mechanical properties material Pole Data Size Unit Plate thickness 4 - 26 mm Yield strength 235 MPa Tensile strength 400-520 MPa elongation 22 % Fig. 2.
Scantling of profile and plate dimensions and the mechanical properties of the material are applied according to the working drawings to provide actual conditions in the field.
Corrosive environmental factors also affect the equivalent stress value in the deck barge model, represented by the reduction plate.
Lu, “Mechanical properties analysis of the naval ship similar model with an integrated sandwich composite superstructure,” Ocean Eng., vol. 232, no. 109101, 2021, [Online].
Mechanical properties material Pole Data Size Unit Plate thickness 4 - 26 mm Yield strength 235 MPa Tensile strength 400-520 MPa elongation 22 % Fig. 2.
Scantling of profile and plate dimensions and the mechanical properties of the material are applied according to the working drawings to provide actual conditions in the field.
Corrosive environmental factors also affect the equivalent stress value in the deck barge model, represented by the reduction plate.
Lu, “Mechanical properties analysis of the naval ship similar model with an integrated sandwich composite superstructure,” Ocean Eng., vol. 232, no. 109101, 2021, [Online].
Online since: June 2013
Authors: Yu Sheng Shi, Kai Liu, Chen Hui Li, Wen Ting He
Experiments on selective laser sintering (SLS) and CIP were carried out to probe the influencing factors in the processes of forming alumina green parts.
Relative density was intricately affected by scanning speed.
As well-known, the monotonic change caused by the three factors above had the same reason as SLS parts’ relative density.
Fig. 3(b) shows that the densification of SLS alumina specimens was affected by CIP pressure.
Barbieri RA, Perottoni CA, Zorzi JE (2012) Influence of sintering Temperature on the mechanical properties of alumina springs.
Relative density was intricately affected by scanning speed.
As well-known, the monotonic change caused by the three factors above had the same reason as SLS parts’ relative density.
Fig. 3(b) shows that the densification of SLS alumina specimens was affected by CIP pressure.
Barbieri RA, Perottoni CA, Zorzi JE (2012) Influence of sintering Temperature on the mechanical properties of alumina springs.
Online since: October 2013
Authors: Mei Shen Wang, Hong Ru Wang, Shuang Peng
The main factor to affect the spray is the amount of the mixed gas jet of the spray nozzle, and the impingement angle of jet of spray nozzle has a direct relationship with the mixed gas.
For roads, the site testing during the laying and the roadbed stability will be affected by water.
Factors of the harmfulness of industrial harmful substances to human health Dust particle size, composition and properties of hazardous substances, harmful content, harmful effects on the human body time workplace meteorological conditions, human labor intensity and individual factors.
Factors Factors: Imports wind speed, the feature of dusty gas, the rigor at the bottom of dust remover, the cylinder diameter and the exhaust pipe diameter, the cylinder and the cone height of cyclone.
Mechanical Engineering and Safety Engineering In mechanical engineering, machinery and mechanics also have a bond.
For roads, the site testing during the laying and the roadbed stability will be affected by water.
Factors of the harmfulness of industrial harmful substances to human health Dust particle size, composition and properties of hazardous substances, harmful content, harmful effects on the human body time workplace meteorological conditions, human labor intensity and individual factors.
Factors Factors: Imports wind speed, the feature of dusty gas, the rigor at the bottom of dust remover, the cylinder diameter and the exhaust pipe diameter, the cylinder and the cone height of cyclone.
Mechanical Engineering and Safety Engineering In mechanical engineering, machinery and mechanics also have a bond.
Online since: February 2011
Authors: Zhen Kai Wan, Yi Li, Jia Lu Li
FBG embedded in the 3D braided composite materials has not more effect mechanical property of materials.
In the internal structure of FBG into measurement, fiber grating is due to the effect of matrix and the yarn around, the actual measurement results will be affected by many factors.
(2) Experimental results show that the 3D braided composite material under tensile load with the internal strain and FBG change, have excellent sensing properties due to the FBG. .
(3) Implanted fiber to the mechanical properties of composite, so less influence on 3D braided composites state health monitoring provides a good basis.
REFERENCES [1] Wan Zhenkai .Acoustic emission analysis of the flexural and tensile properties of 3-D braided composite materials[J].Journal of Textile Research,2007,28(4):53-55
In the internal structure of FBG into measurement, fiber grating is due to the effect of matrix and the yarn around, the actual measurement results will be affected by many factors.
(2) Experimental results show that the 3D braided composite material under tensile load with the internal strain and FBG change, have excellent sensing properties due to the FBG. .
(3) Implanted fiber to the mechanical properties of composite, so less influence on 3D braided composites state health monitoring provides a good basis.
REFERENCES [1] Wan Zhenkai .Acoustic emission analysis of the flexural and tensile properties of 3-D braided composite materials[J].Journal of Textile Research,2007,28(4):53-55
Online since: January 2014
Authors: Quan Duan, Li Chan Li, Meng Yu Chai, Wen Jie Bai
A series of research has been conducted on properties of 316L including the microstructure of the base metal and the weldment and that under the condition of intergranular corrosion.
Introduction The security of nuclear power equipment is an important factor which directly affects the normal operation of nuclear power plants. 316L stainless steel has been widely used in nuclear power equipments.
Many factors such as the high-temperature and high-pressure operating condition, the defect and the heat effect during the welding process may lead to the intergranular corrosion in the base metal and the weldment.
In the last few years, we have conducted a series of research on properties of 316L stainless steel.
[5] Welding branch of China Mechanical Engineering Society.
Introduction The security of nuclear power equipment is an important factor which directly affects the normal operation of nuclear power plants. 316L stainless steel has been widely used in nuclear power equipments.
Many factors such as the high-temperature and high-pressure operating condition, the defect and the heat effect during the welding process may lead to the intergranular corrosion in the base metal and the weldment.
In the last few years, we have conducted a series of research on properties of 316L stainless steel.
[5] Welding branch of China Mechanical Engineering Society.
Online since: March 2004
Authors: Jian Sheng Wu, Ai Dang Shan, Hai Bo Yang, Wei Li
Nb/Nb5Si3 in-situ composites are very attractive structural materials for these materials
perform a good balance in mechanical properties, including a high strength at high temperature
(>1373K) and reasonably high fracture toughness at room temperature.
Metastable phase Nb3Si plays an important role in the properties of Nb/Nb5Si3 composites by affecting microstructure and volume fracture of ductile phase.
The properties and fractography of binary and ternary of +Corresponding author : liweiwei@sjtu.edu.cn � � � � � � � � � � � � � � K1c(MPa � m) as-cast annealed Nb-10Si Nb-10Si-15Mo Nb-18Si-5Mo Nb-18Si-15Mo Fig. 2.
The reason might be that Mo addition cannot obviously affect the microstructure of Nbss particles before heat treatment.
Affecting on the size of Nbss particles; c.
Metastable phase Nb3Si plays an important role in the properties of Nb/Nb5Si3 composites by affecting microstructure and volume fracture of ductile phase.
The properties and fractography of binary and ternary of +Corresponding author : liweiwei@sjtu.edu.cn � � � � � � � � � � � � � � K1c(MPa � m) as-cast annealed Nb-10Si Nb-10Si-15Mo Nb-18Si-5Mo Nb-18Si-15Mo Fig. 2.
The reason might be that Mo addition cannot obviously affect the microstructure of Nbss particles before heat treatment.
Affecting on the size of Nbss particles; c.
Online since: November 2011
Authors: Zhi Wang Zheng, Li Xiao, Min Li Wang
., Xichang, Sichuan ,615041, China
awangminli00@163.com, bzhiwangzheng@126.com, cxiaolipzh@163.com
Keywords: high strength Nb-IF steel; coiling temperature; cold reduction ratio
Abstract: Hot rolled 260MPa grade high strength Nb-IF steel sheet was used to study the effect of coiling temperature and cold reduction ratio on the microstructures and mechanical properties.
That obtains optimally match of high strength and punching property.
Mechanical properties test The tensile samples were prepared for 0°, 45°, 90° three different directions from the annealed testing steels according to the standard of GB/T228-2002.
Therefore, to improve the mechanical properties of high-strength IF steel, take the control of the coiling temperature is very key factor.
The cold reduction ratio is also the key affect factor of cold rolling, final performance in the appropriate composition and hot rolling process only guarantee and cold reduction ratio after the best match next rate, can obtain the high r value.
That obtains optimally match of high strength and punching property.
Mechanical properties test The tensile samples were prepared for 0°, 45°, 90° three different directions from the annealed testing steels according to the standard of GB/T228-2002.
Therefore, to improve the mechanical properties of high-strength IF steel, take the control of the coiling temperature is very key factor.
The cold reduction ratio is also the key affect factor of cold rolling, final performance in the appropriate composition and hot rolling process only guarantee and cold reduction ratio after the best match next rate, can obtain the high r value.