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Keywords: shot peening
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eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2009
ISBN: 978-0-8031-3416-4
... to a shot peening process with varying shot intensities within the recommendations of the MIL-S-13165C and MIL-P-81985 specifications. It was observed that shot peening can result in both an improvement as well as a deterioration in fatigue strength, depending on the shot peening intensity and the type...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2007
ISBN-10: 0-8031-4472-5
ISBN: 978-0-8031-4472-9
... The effects of shot peening on fatigue crack growth in 7075-T735 single-edged notch bend (SENB) and three point bend (TPB) specimens are discussed. Fifty-one total fatigue tests were conducted with SENB and TPB specimens, which were machined from an 8.1 mm thick 7075-T7351 aluminum stock plate...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 2000
ISBN-10: 0-8031-2851-7
ISBN: 978-0-8031-2851-4
... by a factor of three for both materials. Sensitivity to microstructure in fretting fatigue is relatively low compared with plain fatigue. Shot peening improved fretting fatigue life, because of lower tangential force between the specimen and the contact pad and because of residual stress in compression...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1998
ISBN-10: 0-8031-2485-6
ISBN: 978-0-8031-2485-1
... For applications using 4340 steel where hardened surfaces are required in a marine environment, surface coatings are necessary. Coatings that resist corrosion and provide wear resistance generally degrade the fatigue performance of the substrate metal. Shot peening before plating was ineffective...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1448-6
ISBN: 978-0-8031-1448-7
... at predicting fatigue life in the presence of fretting corrosion. Means to avoid fretting corrosion were also explained. fretting corrosion constant amplitude tests load spectrum tests steel nodular cast iron shot peening fatigue life prediction Gerhard Fischer, ~Vatroslav Grubisic, ~and Otto...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1448-6
ISBN: 978-0-8031-1448-7
... Fretting fatigue tests at elevated temperature were carried out using shot-peened specimens to improve the high temperature fretting fatigue strength of 12Cr-Mo-W-V steam turbine steel. Shot peening improved fretting fatigue strengths by a factor of 1.8 at an elevated temperature (773 K) as well...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1992
ISBN-10: 0-8031-1448-6
ISBN: 978-0-8031-1448-7
... Fatigue and fretting tests were carried out with 15 Cr 11 MoV steam turbine blade steel in air and vapor environments. The steel was in the as-heat-treated and as-shot-peened conditions. Both testing ambience and shot peened residual stress could effect the fretting fatigue strength of the steel...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1990
ISBN-10: 0-8031-1402-8
ISBN: 978-0-8031-1402-9
... of these processes and how to achieve consistent improvements in post-weld treatments. shot peening fatigue fatigue strength post-weld stress relief Winfried H. Welsch 1 A Concept for Preventing Repeated Weld Repairs of Bridge Structures REFERENCE: Welsch, W. H., "A Concept for Preventing Repeated Weld...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-1195-9
ISBN: 978-0-8031-1195-0
... Procedures are presented for analyzing the cyclic stability and influence on fatigue resistance of residual stress patterns arising from mechanical and thermal surface processing treatments such as shot peening and induction hardening. Cyclic properties and behavioral trends developed using...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-1195-9
ISBN: 978-0-8031-1195-0
... A method of analysis for finding optimum shot peening specifications for given parts and loading conditions is explained. The method is applied to a part with fillets loaded in rotating bending. The computed optimum intensity is 9 C. Fatigue tests are reported which compare this intensity...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1988
ISBN-10: 0-8031-1195-9
ISBN: 978-0-8031-1195-0
... The damage that leads to crack initiation under fatigue loading generally occurs at or near the surface. The macrostresses and microstrains induced by machining and surface treatments such as shot peening play an important role in the initiation process. The initial distribution and subsequent...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1984
ISBN-10: 0-8031-0407-3
ISBN: 978-0-8031-0407-5
... and other industries. flaw detection shot peening crack propagation space shuttle fracture mechanics nondestructive evaluation radiographic inspection Collipriest equation Paris and Forman equations crack opening displacement Royce G. Forrnan^ and Tianlai Hu^ Application of Fracture...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1982
ISBN-10: 0-8031-0711-0
ISBN: 978-0-8031-0711-3
... on fatigue resistance in certain cases. The beneficial effects of compressive residual stresses due to shot-peening are well-known. For example, shot-peening of non-load-carrying fillet-welded carbon steel and butt-welded constructional alloy steel has increased the fatigue strengths at two million cycles...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1982
ISBN-10: 0-8031-0829-X
ISBN: 978-0-8031-0829-5
... amplitude were varied. Specimens in the as-received condition as well as shot-peened specimens were tested to study the effect of surface condition on resistance to fretting. An approximate analysis of the shear transfer process was developed, and predictions are compared with the measured size...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1978
ISBN-10: 0-8031-4480-6
ISBN: 978-0-8031-4480-4
... developed which employs shot peening of the part while it is restrained to a predetermined, elastic tensile stress. The process, called stress-peen forming, demonstrates excellent predictability by balancing the stress profile across the cross section, applying standard, strength-of-materials equations...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1974
ISBN-10: 0-8031-0367-0
ISBN: 978-0-8031-0367-2
... The fracture strength and cyclic crack-growth properties of surface-flawed, shot-peened D6AC steel plate were investigated. For short crack lengths (up to 1.5 mm) simple linear elastic fracture mechanics—based only on applied loading—did not predict the fracture strengths. Also, Paris' Law...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1973
ISBN-10: 0-8031-5528-X
ISBN: 978-0-8031-5528-2
.... High-frequency fatigue tests were conducted on bare specimens of Type 403 steel, both in a pure-steam environment at 250 F, and in steam contaminated with small quantities of sodium chloride. Tests were also conducted on shot-peened specimens diffusion-coated for corrosion protection. With 2000 ppm...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1971
ISBN-10: 0-8031-0722-6
ISBN: 978-0-8031-0722-9
..., temperature, stress concentration, shot peening, strains, residual stress, evaluation, fatigue tests The earlier papers in this volume have described the basic mechanism of fatigue [1 and 2] ,2 methods of detecting incipient fatigue damage[3], and some field statistics regarding fatigue occurrence in gas...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1970
ISBN-10: 0-8031-0030-2
ISBN: 978-0-8031-0030-5
.... An investigation showed that, over the range studied, maximum residual stress from heat treatment was produced with maximum hardness, medium carbon content, maximum section size (to 4-in. diameter), and minimum hardenability. At high hardness, cold working by shot peening was found to decrease the high residual...
eBook Chapter
Series: ASTM Selected Technical Papers
Publisher: ASTM International
Published: 1967
ISBN-10: 0-8031-6638-9
ISBN: 978-0-8031-6638-7
.... The comparison of steel types shows the maraging steel (300) to have the best life of the three alloys but not sufficient to overcome the environmental effects. stress corrosion corrosion bolts steels environmental testing salt water cadmium nickel gold plating rolling shot peening C. S. Lin...