A.K. Mondal

Research Field

Immersion

10.1016/j.corsci.2020.108444

Cite

Citations (28)

Observation of Anomalous Excitonic Emission in V-Doped Ws2 Qds Synthesized by Hydrothermal Method and Subsequent Mechanical Exfoliation

Prarbdh Bhatt A.K. Mondal N. C. Halder

Exfoliation joint

10.2139/ssrn.4888978

Cite

Citations (0)

Ratcheting induced cyclic softening behaviour of 42CrMo4 steel

IOP Conference Series Materials Science and Engineering (2015)

R. Kreethi A.K. Mondal Krishna Dutta

Ratcheting is an important field of fatigue deformation which happens under stress controlled cyclic loading of materials. The aim of this investigation is to study the uniaxial ratcheting behavior of 42CrMo4 steel in annealed condition, under various applied stresses. In view of this, stress controlled fatigue tests were carried out at room temperature up to 200 cycles using a servo-hydraulic universal testing machine. The results indicate that accumulation of ratcheting strain increases monotonically with increasing maximum applied stress however; the rate of strain accumulation attains a saturation plateau after few cycles. The investigated steel shows cyclic softening behaviour under the applied stress conditions. The nature of strain accumulation and cyclic softening has been discussed in terms of dislocation distribution and plastic damage incurred in the material.

Cyclic stress

Saturation (graph theory)

10.1088/1757-899x/75/1/012027

Cite

Citations (3)

Sliding wear behavior of submicron-grained aluminain biological environment (Vol 83A, p 257,2007)

R. Singha Roy A.K. Mondal Abhra Chanda Debabrata Basu M.K. Mitra

Source

Cite

Citations (0)

On the comparative assessment of ratcheting-induced dislocation density in 42CrMo4 steel by X-ray diffraction profile analysis and hardness measurement

The Philosophical Magazine A Journal of Theoretical Experimental and Applied Physics (2018)

R. Kreethi Srimant Kumar Mishra A.K. Mondal Krishna Dutta

The phenomenon of ratcheting occurs under the influence of non-zero mean stress during cyclic loading; it singificantly reduces the low cycle fatigue life of engineering structures. The present investigation deals with a detailed comparison on the estimation of dislocation densities in the 42CrMo4 steel induced by ratcheting using two different methods, i.e. X-ray diffraction (XRD) profile analysis and hardness. The dislocation densities in the ratcheted specimens were assessed using XRD profile analysis following the modified Williamson–Hall method as well as hardness measurements following the modified Nix and Gao model. The results showed that dislocation density increased in the ratcheted specimens as compared to the unratcheted ones and increase in accumulation of ratcheting strain was correlated with the increase in dislocation densities in the ratcheted specimens. It was established that both hardness and X-ray diffraction profile analysis methods can very effectively be used to assess the dislocation densities in the ratcheted specimens.

Strain (injury)

10.1080/14786435.2018.1497308

Cite

Citations (10)

Microstructure evolution and assessment of creep behaviour of SiC nanoparticles dispersed squeeze-cast Mg-5.0Al-2.0Ca-0.3Mn alloy

Materials Science and Engineering A (2024)

Purnendu Nasker A.K. Mondal

10.1016/j.msea.2024.146894

Cite

Citations (2)

Interrupted creep behaviour of Mg alloys developed for powertrain applications

Materials Science and Engineering A (2009)

A.K. Mondal Daniel Fechner S. Kumar Hajo Dieringa Petra Maier

Die casting

Powertrain

10.1016/j.msea.2009.12.010

Cite

Citations (25)

Lithium fluoride (LiF) target preparation for nuclear physics experiment

arXiv (Cornell University) (2022)

Lalit Kumar Sahoo A.K. Mondal Dipali Basak Chinmay Basu Suraj Kumar Karan

The LiF target preparation on self-supporting Ag backing (LiF/Ag) is discussed in a detailed manner using vacuum evaporation process. The target thickness is measured using the energy loss of three line alpha source. 183.74 μg/cm 2 thickness of LiF is achieved through the evaporation process. Good uniformity of targets is observed. Non-uniformity in targets is found within 6 %. The XPS analysis confirms the presence of both the F and Li atoms on sample surface.

Lithium fluoride

10.48550/arxiv.2208.03425

Cite

Citations (0)

Microstructural characterization and creep behavior of dispersion strengthened MRI230D magnesium alloy

Materials Science and Engineering A (2024)

Saumya Sanjay Shukla Purnendu Nasker Hajo Dieringa Sanjeev Kumar A.K. Mondal

Characterization

10.1016/j.msea.2024.147341

Cite

Citations (1)

Ratcheting life prediction of quenched–tempered 42CrMo4 steel