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구조용강의 Waterjet Peening에 의한 압축잔류응력 유발조건

서용위, 신영삼, 윤호섭

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Abstract

Widely used structural steel SM45C was waterjet peened in air to investigate the optimum peening conditions for the induced compressive residual stress which is beneficial to improve the fatigue strength of the material. After peening the residual stresses generated by the waterjet peening on the surface were measured using X-ray diffraction technique and the results were analyzed to characterize the peening conditions for the maximum compressive stress. Also, the surface roughnesses of peened specimen were measured and the results showed the superior surface quality with minimal changes in surface topography before and after the waterjet peening process.

About this research paper

What this paper is about

Widely used structural steel SM45C was waterjet peened in air to investigate the optimum peening conditions for the induced compressive residual stress which is beneficial to improve the fatigue strength of the material. After peening the residual stresses generated by the waterjet peening on the surface were measured using X-ray diffraction technique and the results were analyzed to characterize the peening conditions for the maximum compressive stress. Also, the surface roughnesses of peened specimen were measured and the results showed the superior surface quality with minimal changes in surface topography before and after the waterjet peening process.

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OpenAlex reports 4 citations for this work. Citation counts describe recorded attention and do not establish research quality.

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Available abstract

Widely used structural steel SM45C was waterjet peened in air to investigate the optimum peening conditions for the induced compressive residual stress which is beneficial to improve the fatigue strength of the material. After peening the residual stresses generated by the waterjet peening on the surface were measured using X-ray diffraction technique and the results were analyzed to characterize the peening conditions for the maximum compressive stress. Also, the surface roughnesses of peened specimen were measured and the results showed the superior surface quality with minimal changes in surface topography before and after the waterjet peening process.

Key concepts: Peening, Residual stress, Materials science, Shot peening, Laser peening, Metallurgy, Fatigue limit, Composite material

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구조용강의 Waterjet Peening에 의한 압축잔류응력 유발조건 — Research Paper | ScholarLens