Characterization of aging behaviour in M250 grade maraging steel using eddy current non-destructive methodology

Rajkumar, K.V.; Rao, B. P. C.; Sundaravel, B.; Kumar, Anish; Jayakumar, T.; Raj, Baldev; Ray, K. K.

doi:10.1016/j.msea.2007.02.006

Cited by 63 publications

(23 citation statements)

References 13 publications

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“…and 50 h. A fully martensitic solution annealed sample was used as a reference because aged samples contain some reverted austenite and precipitates which may affect the eddy current response [24,25]. An Olympus ® Omniscan MX equipment operating at 700 kHz was employed for the eddy current measurements.…”

mentioning

confidence: 99%

Hydrogen embrittlement of ultra high strength 300 grade maraging steel

et al. 2015

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confidence: 99%

Hydrogen embrittlement of ultra high strength 300 grade maraging steel

et al. 2015

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“…Furthermore, this method is applied for the prediction of mechanical properties of the various ferrous metals. Rajkumar [4] et al studied the aging behavior of the M250 grade maraging steel by using ECT method. This study helps us to find the good assessment in the heat treatment shop floor.…”

Section: Introductionmentioning

confidence: 99%

Characterization of Case Hardened AISI 4130 Steel Using Eddy Current Testing

Gukendran¹,

Parameshwaran²,

Ponappa³

2017

Archives of Metallurgy and Materials

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Casting is the manufacturing process of pouring the hot liquiduos state metal in to the mold cavity and then allowed it to solidify to obtain the final casting. There are many defects are found in the casting components during the inspection. Some defects are tolerated while others are required to repair. Otherwise the casting component is to be eliminated due to the poor quality level. The aim of the non-destructive inspection is to determine, the flaws, discontinuities on the material, and characteristics of the material. Based on the results by non-destructive evaluation the personnel take the decision on the material object is to be accepted or not as per the criteria. In this paper the hardness attribute of the case hardened AISI 4130 steel samples are studied using Vickers Hardness test. Then the hardness property is correlated with the Eddy Current Testing method. According to the acceptance criterion the suitability of the material is analyzed for the corresponding application or not. In this paper Eddy Current Testing response is analyzed for the AISI 4130 samples to determine the mechanical properties of the material. The main objective of the paper is to investigate the effect of the hardness property of the casting material during various case depth obtained via case hardening process. This technique is effective and best practice for the heat treatment shop floors. By this technique the results are investigated based on the cracks and microstructure of the casting material.

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“…high sensitivity; rapid scanning, contact-less inspection, and its versatility contribute to its widespread utilizations. This technique can also be utilized for the evaluation of metallurgical variations in addition to defect detection [11]. For example, Konoplyuk could establish an appropriate relation between the hardness of ductile cast iron and the primary and secondary voltages of eddy current signals [12].…”

Section: Introductionmentioning

confidence: 99%

Inspection of diesel engine injectors by several electromagnetic nondestructive methods

Vértesy

Balassa

Gasparics

et al. 2017

International Journal of Applied Electromagnetics and Mechanics

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Abstract. Improved eddy current techniques and a method of magnetic hysteresis measurement were applied for nondestructive inspection of thickness of the hardened surface layer of the steel injectors of diesel engines. A monotonic correlation was found with enough sensitivity and acceptable signal/noise ratio between the electromagnetic parameters and the thickness of the layer. Both the hysteresis and the eddy current methods show very similar types of the correlation. Based on these results, practical application of these novel methods can be realized instead of the presently used destructive tests for inspection of the steel injectors of diesel engines.

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Characterization of aging behaviour in M250 grade maraging steel using eddy current non-destructive methodology

Cited by 63 publications

References 13 publications

Hydrogen embrittlement of ultra high strength 300 grade maraging steel

Hydrogen embrittlement of ultra high strength 300 grade maraging steel

Characterization of Case Hardened AISI 4130 Steel Using Eddy Current Testing

Inspection of diesel engine injectors by several electromagnetic nondestructive methods

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