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Industry adopts low-carbon goals it once shunned as natural disaster losses exceed $100bn a year

Reduced majority could impair the prime minister’s ability to tackle economic and demographic challenges

Sales of top brands on DeWu make up estimated 70% of country’s grey market as consumers hunt for lower prices

タイトル: Real-time Observation of Stress-strain Behavior beyond Necking in Martensitic Steel by in-situ Synchrotron X-ray Diffraction著者: Lavakumar, Avala; Hwang, Sukyoung; Okada, Kazuho; Park, Myeong-heom; Chokshi, Atul Haris; Tsuji, Nobuhiro抄録: In general, the stress-strain relationship of materials obtained by standard uniaxial tensile test, which can identify the hardening behavior only up to necking. Beyond necking, the material behavior is usually estimated by extrapolating or numerical modelling based on hardening behavior prior to the uniform elongation. This study investigated the post-necking hardening behavior of a fully martensitic steel by in-situ synchrotron X-ray diffraction during tensile deformation. From the in-situ results, the dislocation density, lattice strain and phase stress were calculated within the necked region and outside the necked region. A near steady-state flow with some hardening was observed within the necked region of a martensitic steel. ...

Pressure rises on agriculture and industry to reduce pollution and cut its share of use from 59%

Relations between two countries at new low after allegations by Canadian police of ‘clandestine activities’ by envoys

Starmer’s investment summit guests express both praise and doubt — but many say they will wait to pass judgment

Deal could be among year’s largest private equity buyouts as contact-lens maker looks to split from indebted parent

Renewed confidence over health of world’s biggest economy brings fresh momentum to megacap stocks