Improving corrosion and wear resistance of FV520B steel by high current pulsed electron beam surface treatment

Hao, Shuai; Zhao, Limin; Zhang, Yanlong; Wang, Huihui

doi:10.1016/j.nimb.2015.04.046

Cited by 35 publications

(15 citation statements)

References 24 publications

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“…Heating the work piece surface is realized also due to other types of effects: acoustic, mechanical, electromagnetic and beam [7,8]. Also, the pulse plasma system modifies grain size of the layer [4]. The grain structure is very thin and dense in modified layer.…”

Section: Resultsmentioning

confidence: 99%

“…Especially, pulse plasma has been proved to be a powerful tool for surface treatment of materials [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

“…The steel is a medium carbon, medium tensile steel with good strength and toughness. The steel is used for the manufacture of forged shafts and gears and for a wide range of applications that can make use of its good combination of mechanical properties [4,5]. The heat treatment is carried out on this grade to render it suitable for machining and to impart it to specified mechanical properties.…”

Section: Introductionmentioning

confidence: 99%

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Effect of Heat Treatment and Pulse Plasma Process on Surface Properties of Steels

Özbek

2017

Acta Phys. Pol. A

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Section: Resultsmentioning

confidence: 99%

“…Especially, pulse plasma has been proved to be a powerful tool for surface treatment of materials [2][3][4][5].…”

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Effect of Heat Treatment and Pulse Plasma Process on Surface Properties of Steels

Özbek

2017

Acta Phys. Pol. A

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“…Papers of recent years on this subject are devoted both to studying the technological features of surface strengthening by traditional methods of plastic deformation of metal (for instance, shot blasting), and to investigation of new treatments [1][2][3][4][5]. Compared to such costly and unproductive treatments as surface melting by nanopulsed laser [3] or high-power pulsed electron beam [4], steel ball attrition treatment with vacuum chamber application [5], swaging in the hot or cold state [6][7][8], application of high-frequency mechanical peening [9,10] has a number of advantages.…”

mentioning

confidence: 99%

Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening

Knysh¹,

Solovej²,

Nyrkova³

et al. 2016

The Paton Welding J.

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We studied the effectiveness of application of high-frequency mechanical peening to improve fatigue resistance characteristics of tee welded joints in metal structures which are operated in a sea climate. Corrosion damage characteristic for such structures after long-term service was produced by soaking the welded joints in KST-1 salt spray chamber for 1200 h. Metallographic studies were conducted of weld zone and HAZ of welded joints in the initial (unstrengthened) state and in the state of strengthening by the HFMP technology after the impact of corrosive environment. It was established that strengthening by this technology does not improve the joint resistance to the impact of neutral salt spray. Fatigue testing of welded joints were performed in the initial and strengthened state after the impact of neutral salt spay. It was found that strengthening tee welded joints by HFMP before the corrosive impact allows increasing their fatigue strength at 2•10 6 cycles by 48 % and increasing cyclic fatigue life by 2-5 times. Compactness, mobility and low cost of equipment for high-frequency mechanical peening (HFMP) allows strengthening parts of machines and metal structures in any spatial position in the field, in particular under the water [11]. Works [12][13][14][15] give the results of experimental studies of the effectiveness of application of HFMP technology, known in foreign publications as «ultrasonic shock treatment», to improve corrosion resistance and characteristics of corrosion fatigue resistance of welded joints. In these studies assessment of corrosion resistance, corrosion rate and corrosion fatigue of welded joints was performed in NaCl solutions.Analysis of polarization fatigue curves showed that strengthening by HFMP technology increases the corrosion potential and lowers the corrosion rate of peening zone (line of weld metal transition to HAZ). Here, cyclic fatigue life of butt welded joints of pipes rises 2 times, and that of tee joints -up to 6 times. It should be noted that the above data of accelerated corrosion testing do not give an idea about lowering of service properties of HFMP-treated welded joints as the strengthened metal layer is destroyed.Influence of partial corrosion loss of HFMP-strengthened metal layer on residual stress fields and cyclic fatigue life of welded joints is considered in [16,17]. In [16] it is shown that corrosion damage of welded joints of low-alloyed shipbuilding steel equivalent to 7.5 years of operation leads to reduction of the thickness of surface layer of metal with induced residual compressive stresses approximately from 1.5 to 1.0 mm, and lowering of their maximum level. The authors came to the conclusion about the rationality of welded joint treatment by HFMP, as compressive residual stresses are induced in the peening zone instead of tensile residual stresses, and they are preserved even at partial loss of the strengthened layer. In [17] metallographic studies showed that soaking of welded joints of weather-resistant steel in moisture chamber G4 at elevat...

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“…Статьи последних лет по данной тематике посвящены как изучению технологических особенностей упроч-нения поверхности традиционными методами пластического деформирования металла (напри-мер, дробеструйной обработкой), так и исследова-нию новых обработок [1][2][3][4][5]. в сравнении с такими затратными и малопроизводительными обработ-ками, как оплавление поверхности нанопульси-рующим лазером [3] или пульсирующим элек-тронным лучом высокой мощности [4], притирка стальными шариками с применением вакуумной камеры [5], обжатие в холодном или горячем со-стоянии [6][7][8], применение высокочастотной меха-нической проковки [9,10] имеет ряд преимуществ. Компактность, мобильность и низкая стоимость оборудования для высокочастотной механической проковки (вмп) позволяет проводить упрочнение деталей машин и металлоконструкций в любых пространственных положениях, в полевых усло-виях, в том числе под водой [11].…”

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Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening

Knysh¹,

Solovej²,

Nyrkova³

et al. 2016

Avtom. svarka (Kiev)

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Improving corrosion and wear resistance of FV520B steel by high current pulsed electron beam surface treatment

Cited by 35 publications

References 24 publications

Effect of Heat Treatment and Pulse Plasma Process on Surface Properties of Steels

Effect of Heat Treatment and Pulse Plasma Process on Surface Properties of Steels

Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening

Influence of corrosion damage on cyclic fatigue life of tee welded joints treated by high-frequency mechanical peening

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