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Transcripts For BBCNEWS The 20240704

Private travis king as a Prisoner Of War despite him being taken into north korea in custody after causing into the country last month. Before we move onto the rest of the news lets show was these images of pope francis who is currently in lisbon as the ed ward seventh and park. He is in portugal at 45 days for a youth summit and you can see all those young people there lining the streets of the Eduardo The Seventh Park Cheering and theyjust completed a performance. Emotional scenes there of young people getting quite emotional the pontiff there. He given sir newman earlier and sermon, earlierand he given sir newman earlier and sermon, earlier and he will be there to preside over position. You can see all the fee for their in lisbon for pope francis s a trip to portugal and this is a ward of the seventh park. Eduardo the seventh. Scientists say the average Surface Temperature of the worlds oceans has hit a record high, with alarming implications for the planet. The average temperature

The abnormal carbon redistribution in lath martensite during tempering by Dezhen Yang, Chao Zhang et al

Martensite tempering is a critical step to achieve high strength with decent ductility. It is well-known that, during tempering, the carbon is sequentially arranged as segregation, transition carbide and cementite. Abnormally, this study shows the absence of carbide precipitation in Mn-depleted martensite during tempering when Mn distribution is heterogeneous between austenite and martensite. After fast heating and short austenitization from Mn-depleted ferrite and Mn-enriched cementite, the high-temperature austenite with Mn heterogeneous distribution has formed, resulting in the formation of alternating Mn-depleted lath martensite and Mn-enriched film retained austenite (RA) after quenching. In comparison with the carbide precipitation in conventional lath martensite with Mn homogeneous distribution during tempering at 150–500°C, carbide formation is completely inhibited in Mn-depleted lath martensite. Instead, carbon atoms diffuse from Mn-depleted martensite to its neighboring Mn

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