Inhomogeneity of Plastic Deformation after Yielding in Low-carbon Martensitic Steels

Tanaka, Masaki; Morikawa, Tatsuya; Yoshioka, Shimpei; Takashima, Katsutoshi; Kaneko, Shigeo

doi:10.2355/isijinternational.isijint-2021-287

Cited by 4 publications

(2 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Hardness testing is widely used to evaluate the plastic deformability of materials. In the last few decades, nanoindentation testing methods [ 8 , 9 , 10 , 11 , 12 , 13 , 14 , 15 , 16 , 17 , 18 ] have been developed and are rapidly becoming widespread for the evaluation of various materials, including steels [ 19 ], tungsten [ 20 ], copper [ 21 ], and NiTi alloys [ 22 ]. This has produced new metallurgical knowledge about nanoscale deformation that is useful for the development of superior materials.…”

Section: Introductionmentioning

confidence: 99%

Hardness–Deformation Energy Relationship in Metals and Alloys: A Comparative Evaluation Based on Nanoindentation Testing and Thermodynamic Consideration

2021

Self Cite

View full text Add to dashboard Cite

Nanoindentation testing using a Berkovich indenter was conducted to explore the relationships among indentation hardness (H), elastic work energy (We), plastic work energy (Wp), and total energy (Wt = We + Wp) for deformation among a wide range of pure metal and alloy samples with different hardness, including iron, steel, austenitic stainless steel (H ≈ 2600–9000 MPa), high purity copper, single-crystal tungsten, and 55Ni–45Ti (mass%) alloy. Similar to previous studies, We/Wt and Wp/Wt showed positive and negative linear relationships with elastic strain resistance (H/Er), respectively, where Er is the reduced Young’s modulus obtained by using the nanoindentation. It is typically considered that Wp has no relationship with We; however, we found that Wp/We correlated well with H/Er for all the studied materials. With increasing H/Er, the curve converged toward Wp/We = 1, because the Gibbs free energy should not become negative when indents remain after the indentation. Moreover, H/Er must be less than or equal to 0.08. Thermodynamic analyses emphasized the physical meaning of hardness obtained by nanoindentation; that is, when Er is identical, harder materials show smaller values of Wp/We than those of softer ones during nanoindentation under the same applied load. This fundamental knowledge will be useful for identifying and developing metallic materials with an adequate balance of elastic and plastic energies depending on the application (such as construction or medical equipment).

show abstract

Section: Introductionmentioning

confidence: 99%

Hardness–Deformation Energy Relationship in Metals and Alloys: A Comparative Evaluation Based on Nanoindentation Testing and Thermodynamic Consideration

2021

Self Cite

View full text Add to dashboard Cite

show abstract

“…31) On the other hand, the tensile strength is gradually increased with silicon addition for all Q&P conditions. For a given silicon content, the tensile strength is decreased at higher T P , [32][33][34] which is more clearly seen at higher T Q condition.…”

Section: Tensile Propertymentioning

confidence: 84%

Influence of Silicon Contents on the Microstructure and Tensile Properties of Quenching and Partitioning (Q&P) Processed Low Carbon Steel

Yu,

Seo,

et al. 2024

ISIJ Int.

View full text Add to dashboard Cite

Formation of plate-like high-strain region in polycrystalline α-titanium and its relation to high-strain bands on surface

Kawano,

Mayama,

Mitsuhara

2024

Materials Today Communications

View full text Add to dashboard Cite

Inhomogeneity of Plastic Deformation after Yielding in Low-carbon Martensitic Steels

Cited by 4 publications

References 22 publications

Hardness–Deformation Energy Relationship in Metals and Alloys: A Comparative Evaluation Based on Nanoindentation Testing and Thermodynamic Consideration

Hardness–Deformation Energy Relationship in Metals and Alloys: A Comparative Evaluation Based on Nanoindentation Testing and Thermodynamic Consideration

Influence of Silicon Contents on the Microstructure and Tensile Properties of Quenching and Partitioning (Q&P) Processed Low Carbon Steel

Formation of plate-like high-strain region in polycrystalline α-titanium and its relation to high-strain bands on surface

Contact Info

Product

Resources

About