Effect of Multi-Stage Deformation During the Pipe Processing on Mechanical Properties of Steels Strength Grade X70-X80

2019 ◽  
Author(s):  
G. Khadeev
Keyword(s):  
Mechanical Properties ◽  
Strength Grade ◽  
Multi Stage ◽  
Pipe Processing

Effect of Multistage Deformation during the Pipe Processing on Mechanical Properties of Steels Strength Grade X70-X80

2016 ◽  
Vol 716 ◽  
pp. 957-962 ◽  
Author(s):  
Grigorii Khadeev ◽  
Dmitrii Ringinen ◽  
Leonid Efron
Keyword(s):  
Experimental Data ◽  
Mechanical Properties ◽  
Yield Stress ◽  
Rolling Mill ◽  
Strength Properties ◽  
Mill Product ◽  
Rolled Metal ◽  
Strength Grade ◽  
Deformed State ◽  
Pipe Processing

In this research effect of the pipe forming on strength properties of rolled metal was investigated. Deformed state of metal during pipe processing was analyzed and tests with specimens from plate were performed. Analysis of the experimental data was exploited to evaluate effect of the strain on yield stress in each stage of the pipe forming and specimen flattening. The model for estimation of mechanical properties of the rolling mill product based on the required mechanical properties of the pipe was created.

The Influence of the Strain Aging on the Mechanical Properties upon Extension in the Metal of X80 Strength Grade Pipes

2019 ◽  
Vol 10 (4) ◽  
pp. 939-944 ◽  
Author(s):  
V. A. Khotinov ◽  
O. N. Polukhina ◽  
O. V. Selivanova ◽  
V. M. Farber
Keyword(s):  
Mechanical Properties ◽  
Strain Aging ◽  
Strength Grade

Effect of multi-stage aging treatments on the precipitation and mechanical properties of Al-Zn-Mg alloys

2020 ◽  
Vol 785 ◽  
pp. 139394 ◽  
Author(s):  
Zhen Zhang ◽  
Yunlai Deng ◽  
Lingying Ye ◽  
Lin Sun ◽  
Tao Xiao ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Mg Alloys ◽  
Multi Stage

Influence of pipe processing on the mechanical properties of K60 steel sheet

2012 ◽  
Vol 42 (6) ◽  
pp. 536-540 ◽  
Author(s):  
Yu. I. Matrosov ◽  
V. I. Levchenko ◽  
A. Yu. Loskutov ◽  
V. V. Volodarskii ◽  
N. V. Kolyasnikova ◽  
...  
Keyword(s):  
Mechanical Properties ◽  
Steel Sheet ◽  
Pipe Processing

Effect of Annealing on the Transformation Behavior and Mechanical Properties of Two Nanostructured Ti-50.8at.%Ni Thin Wires Produced by Different Methods

2013 ◽  
Vol 738-739 ◽  
pp. 306-310 ◽  
Author(s):  
Xie Bin Wang ◽  
Behnam Amin Ahmadi ◽  
Dominique Schryvers ◽  
Bert Verlinden ◽  
Jan Van Humbeeck
Keyword(s):  
Mechanical Properties ◽  
Annealing Treatment ◽  
Total Elongation ◽  
Ultimate Tensile Stress ◽  
Transformation Behavior ◽  
Recoverable Strain ◽  
Plateau Stress ◽  
Annealing Conditions ◽  
Multi Stage ◽  
The One

A Ti-50.8at.%Ni wire produced using a co-drawing method and a commercial Ti-50.8at.%Ni wire were annealed between 450°C and 700°C. Grains with diameter less than 100nm were revealed by TEM for both wires before annealing treatment. However, the microstructural heterogeneity of the co-drawn wire is more obvious than that of the commercial wire. The transformation behavior and mechanical properties of both wires were found to be sensitive to the annealing temperature. Multi-stage martensitic transformation was observed in the co-drawn wire, compared with the one-stage A↔M transformation in the commercial wire after annealing at 600°C for 30min. Moreover, the ultimate tensile stress and plateau stress of the commercial wire were found to be higher than that of the co-drawn wire under the same annealing conditions. The differences of total elongation, plateau strain and pseudoelastic recoverable strain between the commercial wire and the co-drawn wire were also observed. The differences of the transformation behavior and mechanical properties between the commercial wire and the co-drawn wire are attributed to the microstructural difference between these two wires.

Robuste W-Temper-Umformung von hochfestem Aluminium/Robust W-Temper forming of high-strength aluminum – How time and quenching method affect the mechanical properties of EN AW-7075

2020 ◽  
Vol 110 (10) ◽  
pp. 697-703
Author(s):  
Janosch Günzel ◽  
Timon Suckow ◽  
Ciarán-Victor Veitenheimer ◽  
Joachim Hauß ◽  
Peter Groche
Keyword(s):  
Mechanical Properties ◽  
Aluminum Alloys ◽  
Process Control ◽  
Temperature Control ◽  
Process Parameters ◽  
High Strength ◽  
Multi Stage ◽  
Quenching Method ◽  
High Strength Aluminum Alloys

Aufgrund ihrer geringen Kaltumformbarkeit werden hochfeste Aluminiumlegierungen in temperaturunterstützten Prozessrouten umgeformt. Bei mehrstufigen Prozessen führt dies zu komplexen und störanfälligen Prozessfolgen. Eine Umformung im W-Temper-Zustand vereinfacht die Temperaturführung und steigert die Robustheit. Die hierbei möglichen Prozessführungen sowie die Einflüsse der relevanten Prozessparameter (Zeit und Abschreckmethode) sind Inhalt dieses Beitrags.   Due to their low cold formability, high-strength aluminum alloys are formed in temperature-supported process routes. This leads to complex and failure-prone process sequences in multi-stage processes. Forming in the W-Temper state simplifies temperature control and increases robustness. This paper deals with the possible process control as well as the influences of the relevant process parameters (time and quenching method).

Effect of Low Temperature on Mechanical Properties of Concrete with Different Strength Grade

2011 ◽  
Vol 477 ◽  
pp. 308-312 ◽  
Author(s):  
Xiao Ping Cai ◽  
Wen Cui Yang ◽  
Jie Yuan ◽  
Yong Ge ◽  
Bao Sheng Zhang
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Elastic Modulus ◽  
Low Temperature ◽  
Flexural Strength ◽  
Splitting Tensile Strength ◽  
Growth Ratio ◽  
Strength Grade

The effect of low temperature (-35°C) on the mechanical properties of concrete with different strength grade such as compressive strength, flexural strength, splitting tensile strength and elastic modulus was studied. The results showed that all of the mechanical properties were improved at -35°C. It was also can be found from the tests, as the strength grade increased, the growth ratios at -35°C of compressive strength, flexural strength and splitting tensile strength decreased. But the growth ratio of elastic modulus increased with the increasing of strength grade.

Influence of Nano-SiO2 and Nano-CaCO3 on the Mechanical Properties of Concrete with Different Strength Grades

2011 ◽  
Vol 250-253 ◽  
pp. 480-484 ◽  
Author(s):  
Miao Zhou Huang ◽  
Tao Meng ◽  
Xiao Qian Qian ◽  
Jin Jian Zhang
Keyword(s):  
Mechanical Properties ◽  
The Other ◽  
Early Age ◽  
Nano Materials ◽  
Strength Grade ◽  
Other Hand

The flow ability, mechanical properties and microstructure of concrete with different strength grades affected by nano-SiO2and nano-CaCO3was studied. The experiment results showed that the strength of concrete at early age was increased by adding the nano-materials if the strength grade of concrete was not high. But the strength at the age of 28 days was not affected a lot by adding these nano-materials. On the other hand, it was not useful to the strength if the strength grade of concrete was high.

Evaluation of Relations among Basic Mechanical Properties of Fly-Ash Concrete with Machine-Made Sand

2013 ◽  
Vol 438-439 ◽  
pp. 15-19
Author(s):  
Chun Jie Liu ◽  
Chun Yan Jia ◽  
Chang Yong Li
Keyword(s):  
Mechanical Properties ◽  
Tensile Strength ◽  
Compressive Strength ◽  
Elastic Modulus ◽  
Fly Ash ◽  
Concrete Structures ◽  
Ordinary Concrete ◽  
Strength Grade ◽  
Fly Ash Concrete ◽  
Axial Compressive Strength

Although the machine-made sand was widely used for concrete in recent years in China, it was short of studies on the relations among the basic mechanical properties of fly-ash concrete with machine-made sand (MSFAC). However, these relations such as the compressive strength, the tensile strength and the elastic modulus with the cubic compressive strength (i.e. strength grade) are the basis of design for concrete structures. This paper summarizes the test data from the published references, and discusses the relations among these properties by statistical analyses compared with those of ordinary concrete. The results show that only the tensile strength of MSFAC can be safely forecasted by the same formula of ordinary concrete specified in current Chinese design code. When the strength grade is higher than C45, the axial compressive strength of MSFAC is largely forecasted by the formula of ordinary concrete. The elastic modulus of MSFAC is larger than that of ordinary concrete, which should be prospect by the formula in this paper. This work gives out some cautions for the proper use of the MSFAC in concrete structures.

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