Understanding crack growth within the γ′ Fe4N layer in a nitrided low carbon steel during monotonic and cyclic tensile testing. - Varanasi, Rama Srinivas; Koyama, Motomichi; Yokoi, Mizuho; Ootani, Yusuke; Kubo, Momoji; Tanahara, Kento; Umezawa, Osamu (Journal of Materials Science, 2024)