title: ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ° ÑÑÐ°Ð»Ð¸ ÑÐ¾ ÑÐ²ÐµÑÑ Ð½ÐµÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÐ¼ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð·Ð¾ÑÐ°
title: Ð²ÑÐ¿ÑÑÐºÐ½Ð°Ñ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð°Ñ ÑÐ°Ð±Ð¾ÑÐ° Ð¼Ð°Ð³Ð¸ÑÑÑÐ°
titleType: Subtitle
title: Ivestigation of the process of plasma sphe-roidization of steel powder with superequilibrium nitrogen content
Creators: name: ÐÐ·ÐµÑÑÐºÐ¾Ð¹, ÐÐ¸ÐºÐ¾Ð»Ð°Ð¹
Publisher: name: Ð¡Ð°Ð½ÐºÑ-ÐÐµÑÐµÑÐ±ÑÑÐ³ÑÐºÐ¸Ð¹ Ð¿Ð¾Ð»Ð¸ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ½Ð¸Ð²ÐµÑÑÐ¸ÑÐµÑ ÐÐµÑÑÐ° ÐÐµÐ»Ð¸ÐºÐ¾Ð³Ð¾
Year: 2022
Subjects: Ð¡ÑÐ°Ð»Ñ
Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¾Ðµ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ðµ
Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð°Ñ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸Ñ
Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÐµ ÑÐµÑ Ð½Ð¾Ð»Ð¾Ð³Ð¸Ð¸
Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÐµ ÑÑÐ°Ð»Ð¸
mechanical alloying
plasma spheroidization
additive technologies
high-nitrogen steels

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ° ÑÑÐ°Ð»Ð¸ ÑÐ¾ ÑÐ²ÐµÑÑÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÐ¼ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð·Ð¾ÑÐ°Â». Ð ÑÐ°Ð±Ð¾ÑÐµ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÑÑÑ ÑÐ¿Ð¾ÑÐ¾Ð± Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÐµÐ¹ ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¾ÑÐ¼Ñ Ð´Ð»Ñ Ð´Ð°Ð»ÑÐ½ÐµÐ¹ÑÐµÐ³Ð¾ Ð¸Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ñ ÑÐµÐ¾ÑÐµÑÐ¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÑÑÑÑ Ð¼Ð°ÐºÑÐ¸Ð¼Ð°Ð»ÑÐ½Ð¾ Ð²Ð¾Ð·Ð¼Ð¾Ð¶Ð½Ð¾Ð³Ð¾ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ Ð°Ð·Ð¾ÑÑ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸ÑÑ. ÐÐ°Ð´Ð°ÑÐ¸ Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: â Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð°ÑÑÐ½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð¸Ð½ÑÐ¾ÑÐ¼Ð°ÑÐ¸Ð¸ Ð¾ Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÑÑ, Ð¼ÐµÑÐ¾Ð´Ð°Ñ Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ, Ð¾ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ð¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÐµÐ¹ ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¾ÑÐ¼Ñ Ð´Ð»Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ; â Ð²ÑÐ±Ð¾Ñ Ð¸ÑÑÐ¾Ð´Ð½ÑÑ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¹ Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÐµÐ¹; â Ð²ÑÐ±Ð¾Ñ Ð¼ÐµÑÐ¾Ð´Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¸ÑÑÐ¾Ð´Ð½Ð¾Ð¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¸; â Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ ÑÐµÐ¶Ð¸Ð¼Ð¾Ð² Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÐµÐ¹ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ; â Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð²Ð»Ð¸ÑÐ½Ð¸Ñ Ð¿Ð°ÑÐ°Ð¼ÐµÑÑÐ¾Ð² Ð¿ÑÐ¾ÑÐµÑÑÐ° Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸Ð¸ Ð½Ð° Ð¿Ð¾Ð»ÑÑÐ°ÐµÐ¼ÑÐµ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸ Ð²ÑÑÐ¾ÐºÐ¾Ð°Ð·Ð¾ÑÐ¸ÑÑÑÑ ÑÑÐ°Ð»ÐµÐ¹ Ð´Ð»Ñ Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸Ð¹; â Ð°Ð½Ð°Ð»Ð¸Ð· Ð½Ð¾ÑÐ¼Ð°ÑÐ¸Ð²Ð½Ð¾-ÑÐµÑÐ½Ð¸ÑÐµÑÐºÐ¾Ð¹ Ð»Ð¸ÑÐµÑÐ°ÑÑÑÑ Ð¿Ð¾ ÐºÐ¾Ð½ÑÑÐ¾Ð»Ñ ÐºÐ°ÑÐµÑÑÐ²Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð². ÐÐ±ÑÐµÐºÑÐ¾Ð¼ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ²Ð»ÑÑÑÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸ ÑÑÐ°Ð»ÐµÐ¹ ÐºÐ¾Ð¼Ð¿Ð¾Ð·Ð¸ÑÐ¸Ð¹ Fe-CrN-Ni-Mn-Mo Ð¸ Fe-FeCr-Ni-Mn-Mo, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÐµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ð¼ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ñ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐµÐ¹ Ð¿Ð»Ð°Ð·Ð¼ÐµÐ½Ð½Ð¾Ð¹ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸ÐµÐ¹.Â Ð¦ÐµÐ»Ñ ÑÐ°Ð±Ð¾ÑÑ - ÑÐ°Ð·ÑÐ°Ð±Ð¾ÑÐºÐ° ÑÐ¿Ð¾ÑÐ¾Ð±Ð° Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² ÑÑÐ°Ð»ÐµÐ¹ ÑÐ¾ ÑÐ²ÐµÑÑÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÐ¼ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð·Ð¾ÑÐ° ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¾ÑÐ¼Ñ Ð´Ð»Ñ Ð¸Ñ Ð¿Ð¾ÑÐ»ÐµÐ´ÑÑÑÐµÐ³Ð¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ Ð² Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ. Ð Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ÑÑ ÑÐºÑÐ¿ÐµÑÐ¸Ð¼ÐµÐ½ÑÑ Ð¿Ð¾ Ð²Ð²ÐµÐ´ÐµÐ½Ð¸Ñ Ð°Ð·Ð¾ÑÐ° Ð² ÑÑÐ°Ð»Ð¸ Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¼ÐµÐ»ÑÐ½Ð¸ÑÑ Ð°ÑÑÑÐ¸ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ ÑÐ¸Ð¿Ð° Union Process SD-5. ÐÐ»Ð°Ð·Ð¼ÐµÐ½Ð½Ð°Ñ ÑÑÐµÑÐ¾Ð¸Ð´Ð¸Ð·Ð°ÑÐ¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð² ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ Ð»ÐµÐ³Ð¸ÑÐ¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð°ÑÑ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÑÑÐ°Ð½Ð¾Ð²ÐºÐ¸ Tekna TekSphero-15. ÐÑÐ¾Ð²ÐµÐ´ÐµÐ½Ð¾ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ðµ Ð¼Ð¾ÑÑÐ¾Ð»Ð¾Ð³Ð¸Ð¸ ÑÐ°ÑÑÐ¸Ñ, Ð° ÑÐ°ÐºÐ¶Ðµ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð³Ð¾ ÑÐ¾ÑÑÐ°Ð²Ð°, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð½Ð° ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÑÐ°Ð´Ð¸ÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² ÑÑÐ°Ð»ÐµÐ¹ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ ÑÐºÐ°Ð½Ð¸ÑÑÑÑÐµÐ³Ð¾ ÑÐ»ÐµÐºÑÑÐ¾Ð½Ð½Ð¾Ð³Ð¾ Ð¼Ð¸ÐºÑÐ¾ÑÐºÐ¾Ð¿Ð° (SEM, Tescan Mira 3) Ñ Ð´ÐµÑÐµÐºÑÐ¾ÑÐ¾Ð¼ ÑÐ»ÑÐ¾ÑÐµÑÑÐµÐ½ÑÐ½Ð¾Ð³Ð¾ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ (Bruker X-Flash 6/10). Ð ÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¸Ð¹ Ð´Ð¸ÑÑÐ°ÐºÑÐ¾Ð¼ÐµÑÑ Bruker D8 Advance Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»ÑÑ Ð´Ð»Ñ ÑÐµÐ½ÑÐ³ÐµÐ½Ð¾Ð²ÑÐºÐ¾Ð³Ð¾ Ð°Ð½Ð°Ð»Ð¸Ð·Ð° Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð¸Ð·Ð»ÑÑÐµÐ½Ð¸Ñ Cu Ka (1,5406 Ã) Ð² Ð´Ð¸Ð°Ð¿Ð°Ð·Ð¾Ð½Ðµ 2Î¸. ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¾ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ ÑÐ³Ð»ÐµÑÐ¾Ð´Ð° Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð°Ð±ÑÐ¾ÑÐ±ÑÐ¸Ð¸ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ° CS-230 ÑÐ¸ÑÐ¼Ñ LECO (Ð¡Ð¨Ð). ÐÐ¿ÑÐµÐ´ÐµÐ»ÐµÐ½Ð¸Ðµ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ñ ÐºÐ¸ÑÐ»Ð¾ÑÐ¾Ð´Ð° Ð¸ Ð°Ð·Ð¾ÑÐ° Ð¿ÑÐ¾Ð²Ð¾Ð´Ð¸Ð»Ð¸ Ð¼ÐµÑÐ¾Ð´Ð¾Ð¼ Ð²Ð¾ÑÑÑÐ°Ð½Ð¾Ð²Ð¸ÑÐµÐ»ÑÐ½Ð¾Ð³Ð¾ Ð¿Ð»Ð°Ð²Ð»ÐµÐ½Ð¸Ñ Ð² Ð¿Ð¾ÑÐ¾ÐºÐµ Ð¸Ð½ÐµÑÑÐ½Ð¾Ð³Ð¾ Ð³Ð°Ð·Ð°-Ð½Ð¾ÑÐ¸ÑÐµÐ»Ñ (Ð³ÐµÐ»Ð¸Ñ) Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð½Ð°Ð»Ð¸Ð·Ð°ÑÐ¾ÑÐ° TC-500 Ð¾Ñ ÐºÐ¾Ð¼Ð¿Ð°Ð½Ð¸Ð¸ LECO (Ð¡Ð¨Ð). ÐÑÐ°Ð½ÑÐ»Ð¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ¾ÑÑÐ°Ð² Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¿Ð¾ÑÐ¾ÑÐºÐ° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½ Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸ÐµÐ¼ Ð»Ð°Ð·ÐµÑÐ½Ð¾Ð³Ð¾ Ð´Ð¸ÑÑÐ°ÐºÑÐ¾Ð¼ÐµÑÑÐ° (Fritsch Analysette 22). Ð ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐµ Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð¸Ñ Ð¿Ð¾Ð»ÑÑÐµÐ½Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¸ ÑÑÐ°Ð»ÐµÐ¹ ÑÐ¾ ÑÐ²ÐµÑÑÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÐ¼ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð·Ð¾ÑÐ° ÑÑÐµÑÐ¸ÑÐµÑÐºÐ¾Ð¹ ÑÐ¾ÑÐ¼Ñ; Ð¿Ð¾ÑÑÑÐ¾ÐµÐ½Ñ Ð³ÑÐ°ÑÐ¸ÐºÐ¸ Ð´Ð¸ÑÐ¿ÐµÑÑÐ½Ð¾Ð³Ð¾ ÑÐ¾ÑÑÐ°Ð²Ð° Ð¿Ð¾ÑÐ¾ÑÐºÐ°, ÑÑÐµÑÐ¸ÑÐ½Ð¾ÑÑÐ¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð²; ÑÐ¾ÑÑÐ°Ð²Ð»ÐµÐ½Ñ ÑÐ°Ð±Ð»Ð¸ÑÑ Ñ ÑÐµÐ·ÑÐ»ÑÑÐ°ÑÐ°Ð¼Ð¸ Ð¿Ð¾ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¼Ñ Ð°Ð½Ð°Ð»Ð¸Ð·Ñ Ð¸ÑÑÐ»ÐµÐ´ÑÐµÐ¼ÑÑ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð², Ð³ÑÐ°Ð½ÑÐ»Ð¾Ð¼ÐµÑÑÐ¸ÑÐµÑÐºÐ¾Ð¼Ñ ÑÐ¾ÑÑÐ°Ð²Ñ, ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÐ¼Ð¸ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ°Ð¼Ð¸, Ð½ÐµÐ¾Ð±ÑÐ¾Ð´Ð¸Ð¼ÑÐ¼Ð¸ Ð´Ð»Ñ Ð¾ÑÐµÐ½ÐºÐ¸ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð². ÐÐ±Ð»Ð°ÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ñ: Ð¿ÑÐµÐ´Ð»Ð¾Ð¶ÐµÐ½Ð½ÑÐ¹ Ð¼ÐµÑÐ¾Ð´ Ð¿Ð¾Ð»ÑÑÐµÐ½Ð¸Ñ Ð¿Ð¾ÑÐ¾ÑÐºÐ¾Ð² ÑÑÐ°Ð»ÐµÐ¹ ÑÐ¾ ÑÐ²ÐµÑÑÑÐ°Ð²Ð½Ð¾Ð²ÐµÑÐ½ÑÐ¼ ÑÐ¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸ÐµÐ¼ Ð°Ð·Ð¾ÑÐ° Ð¼Ð¾Ð¶ÐµÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÑÑÑÑÑ Ð´Ð»Ñ Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð½Ð¸Ñ Ð² Ð°Ð´Ð´Ð¸ÑÐ¸Ð²Ð½ÑÑ ÑÐµÑÐ½Ð¾Ð»Ð¾Ð³Ð¸ÑÑ.
description: The topic of the final qualifying work: "Investigation of the process of plasma spheroidization of steel powder with superequilibrium nitrogen content". The paper considers the technology of obtaining spherical powders of high-nitrogen steels for their further use in additive technologies. Theoretical calculations of the maximum possible nitrogen content in various compositions have been made. Tasks of the final qualification work: â analysis of scientific and technical information on high-nitrogen steels, methods of their production, on the production of spherical powders of high-nitrogen steels for use in additive technologies; â choice of initial compositions of high-nitrogen steels; â choice of the method of obtaining the original composition; â select modes for obtaining powders of highly nitrogenous compounds; â to select modes for obtaining powders of high-nitrogen compounds for additive technologies; â analysis of normative and technical literature on quality control of the obtained powders. The object of the study is steel powders of the composition Fe-CrN-Ni-Mn-Mo and Fe-FeCr-Ni-Mn-Mo obtained by mechanical alloying with the following plasma spheroidization. The aim of the work is to develop a technique for obtaining spherical powders of steels with a superequilibrium nitrogen content for their later use in additive technologies. During the study, experiments were carried out on the introduction of nitrogen into steel during mechanical alloying using a Union Process SD-5 attritor mill.Â Plasma spheroidization of powders obtained as a result of mechanical alloying was carried out using the Tekna TekSphero-15 installation. A study of the morphology of particles, as well as the chemical composition of steel powders obtained at various stages using a scanning electron microscope (SEM, Tescan Mira 3) with a fluorescent radiation detector (Bruker X-Flash 6/10) was carried out. The Bruker D8 Advance X-ray diffractometer was used for X-ray analysis using Cu Ka (1,5406 Ã) radiation in the 2Î¸ range. The carbon content was determined by the absorption method using the LECO CS-230 analyzer. The oxygen and nitrogen content were determined by the method of forced melting in a stream of inert carrier gas (helium) using a TC-500 analyzer from LECO. The granulometric composition of the resulting powder was investigated using a laser diffractometer (Fritsch Analysette 22). As a result of the study, powders of steels with a super-nonequilibrium nitrogen content of spherical shape were obtained; graphs of the dispersed composition of the powder, the sphericity of the powders were constructed; tables with the results of the chemical analysis of the powders; granulometric composition, various characteristics necessary for the evaluation of powders under study were compiled. Scope of application: the proposed method for obtaining powders of steels with a superequilibrium nitrogen content can be used for use in additive technologies.