Journal ArticleDOI
Correlation of Yield Strength and Tensile Strength with Hardness for Steels
Erik J. Pavlina,C.J. Van Tyne +1 more
Reads0
Chats0
TLDR
In this paper, the authors used regression analysis to determine the correlation of the yield strength and the tensile strength to the diamond pyramid hardness values for over 150 nonaustenitic, hypoeutectoid steels.Abstract:
Hardness values as well as yield and tensile strength values were compiled for over 150 nonaustenitic, hypoeutectoid steels having a wide range of compositions and a variety of microstructures. The microstructures include ferrite, pearlite, martensite, bainite, and complex multiphase structures. The yield strength of the steels ranged from approximately 300 MPa to over 1700 MPa. Tensile strength varied over the range of 450-2350 MPa. Regression analysis was used to determine the correlation of the yield strength and the tensile strength to the diamond pyramid hardness values for these steels. Both the yield strength and tensile strength of the steels exhibited a linear correlation with the hardness over the entire range of strength values. Empirical relationships are provided that enable the estimation of strength from a bulk hardness measurement. A weak effect of strain-hardening potential on the hardness-yield strength relationship was also observed.read more
Citations
More filters
Journal ArticleDOI
Tensile–Shear Fracture Behavior Prediction of High-Strength Steel Laser Overlap Welds
TL;DR: In this article, an analytical model was developed to predict the tensile-shear fracture location without destructive testing, and the critical interface bead width for avoiding interface fracturing was suggested with an accuracy higher than 90%.
Journal ArticleDOI
An Evaluation of Mechanical Properties with the Hardness of Building Steel Structural Members for Reuse by NDT
Masanori Fujita,Keiichi Kuki +1 more
TL;DR: In this paper, the performance of steel structural members of a gable frame is evaluated with a non-destructive test for reuse using a portable ultrasonic hardness tester, and the structural properties for reuse are estimated based on the proposed flow.
Thin film mechanics
TL;DR: Cooper et al. as mentioned in this paper employed a combination of dynamic nanoindentation and finite element analysis to determine the change in stiffness of polydimethylsiloxane (PDMS) microfilms as a function of electron beam irradiation.
Journal ArticleDOI
Surface polishing of AISI 304 stainless steel with micro plasma beam irradiation
TL;DR: In this article, the polishing abilities of micro-plasmine beam were verified, and AISI 304 stainless steel was chosen as the experimental material, and the results indicated that the surface roughness could decrease from 5.11´±´0.55´μm to 0.41´±''0.05''μm when the number of passes was 3.
Journal ArticleDOI
Wide Range Mechanical Customization of Mg-Gd Alloys With Low Degradation Rates by Extrusion
TL;DR: In this paper, the mechanical properties of binary Mg-Gd alloys by indirect extrusion is shown to obtain a property profile that is applicable to different biomedical applications. But only a few magnesium alloys have been approved for implant applications, and the choice of the alloying elements is a critical parameter and rare earth elements have proven to be mechanically suitable and biologically tolerable.
References
More filters
Book
The Science of hardness testing and its research applications : based on papers presented at a symposium of the American Society for Metals, October 18 to 20, 1971
J. H. Westbrook,Hans Conrad +1 more
The determination of yield strength from hardness measurements
TL;DR: In this paper, it was shown that the 0.2 pct offset yield strength of a material can be obtained from simple hardness measurements using the expression σ y = (H/3)(0.1) m-2cffff, where H is the Diamond pyramid hardness and m is Meyer's hardness coefficient.
Journal ArticleDOI
Microhardness mapping and the hardness-yield strength relationship in high-pressure diecast magnesium alloy AZ91
Carlos H. Cáceres,J.R. Griffiths,J.R. Griffiths,Amirreza Pakdel,Cameron Davidson,Cameron Davidson +5 more
TL;DR: In this article, microhardness maps of cross-sections of high pressure diecast test bars of AZ91 have been determined, and the mean hardness obtained by integrating the micro hardness maps over the entire cross-section increased with decreasing thickness of the bars, and was found to be in good correlation with each bar's yield strength.
Journal ArticleDOI
On the correlation of mechanical and physical properties of 7075-T6 Al alloy
R. Clark,B. Coughran,I. Traina,A. Hernandez,T. Scheck,C. Etuk,J. Peters,E.W. Lee,J. Ogren,Omar S. Es-Said +9 more
TL;DR: In this paper, the influence of varying the thermal processing parameters on the physical and mechanical properties of 7075 T6 aluminum alloy was studied and an excellent correlation was found between the tensile strength and hardness.
Related Papers (5)
The failure of brittle solids containing small cracks under compressive stress states
Michael F. Ashby,S.D. Hallam +1 more