Radiological quiz - thorax

Padma, N; Venkat, H; Nagendra, K; Hombal, AG; Hegde, KK

doi:10.4103/0971-3026.29106

Cited by 1 publication

(2 citation statements)

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“…[1] The samples analyzed from early iron age show high slag inclusion due to low firing temperature (1100-1300°C) and insufficient metallurgical skill. [2][3][4] In incidental cases, pearlite was observed in the early iron probably due to repeated heating and hammering during forging. [5] The iron artifacts recovered from excavations of early iron age sites like Hastinapur and Atranjikhera from northern India Ganga valley have yielded only a few small fragmentary unidentifiable object.…”

Section: Introductionmentioning

confidence: 99%

“…[8] The archeological records of the period unearthed at Taxila, Ruper, Hastinapur, Mathura, Kansambi, Rajghat, and Ujjain have revealed large findings of arrowheads, spearheads, dragger, and knives. [4] The European metallurgists studied the metallurgical properties, manufacturing process, and corrosion behavior of India's preindustrial wootz steel. [9][10][11] Several books on the state of ancient iron technology heralded the primacy of iron technology in the Indian subcontinent.…”

Section: Introductionmentioning

confidence: 99%

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Microscopic examination of the 2,300‐year‐old excavated steel plowshare from northern India

Singh¹,

Singh²,

Preeti³

2019

X-Ray Spectrometry

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In the present investigation, X‐ray diffractometer, optical microscope, and scanning electron microscope were used to analyze the plowshare excavated from Ganwaria, UP, India. The main objective of the investigation was to determine the type of alloy, analysis of slag inclusion, and corrosion behavior. X‐ray diffraction analysis showed the presence of α‐iron. Microstructure consists of ferrite and pearlite grains; ferrite phase was soft in comparison to the pearlite. Optical micrograph at lower magnification revealed slag inclusions aligned in a specific direction, which indicates that the forge welding technique was used in the manufacturing of the object. The microstructural examination revealed that the object was manufactured from carbon steel. Entrapped slag inclusions were observed by scanning electron microscope and X‐ray mapping, and slags were identified as SiO2 and MgO. Goethite and lepidocrocite corrosion compound were found on the surface of the object.

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Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%