title: ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð² Ð½Ð° ÑÐ²Ð¾Ð»ÑÑÐ¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð¸ Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÐ¿Ð»Ð°Ð²Ð° Al-Zn-Mg-Cu, ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐ¾Ð¹ ÑÑÐµÐ½Ð¸ÐµÐ¼ Ñ Ð¿ÐµÑÐµÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸ÐµÐ¼
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: Impact of impulses on microstructural evolution and mechanical performance of Al-Zn-Mg-Cu alloy joined by impulse friction stir welding
Creators: name: ÐÐ°Ð½ ÐÑÑÐ¸
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¡Ð²Ð°ÑÐºÐ°
Ð¡Ð¿Ð»Ð°Ð²Ñ
ÑÐ¿Ð»Ð°Ð² Al-Zn-Mg-Cu
Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð°Ñ ÑÐ²Ð°ÑÐºÐ° ÑÑÐµÐ½Ð¸ÐµÐ¼ Ñ Ð¿ÐµÑÐµÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸ÐµÐ¼
ÑÐ¿ÑÐ¾ÑÐ½ÑÑÑÐ¸Ðµ ÑÐ°ÑÑÐ¸ÑÑ Ð²ÑÐ¾ÑÐ¾Ð¹ ÑÐ°Ð·Ñ
ÑÐ²Ð¾Ð»ÑÑÐ¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ
Ð¼ÐµÑ Ð°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ Ñ Ð°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸
Al-Zn-Mg-Cu alloy
impulse friction stir welding
precipitation
microstructure evolution
mechanical performance

description: Ð¢ÐµÐ¼Ð° Ð²ÑÐ¿ÑÑÐºÐ½Ð¾Ð¹ ÐºÐ²Ð°Ð»Ð¸ÑÐ¸ÐºÐ°ÑÐ¸Ð¾Ð½Ð½Ð¾Ð¹ ÑÐ°Ð±Ð¾ÑÑ: Â«ÐÐ»Ð¸ÑÐ½Ð¸Ðµ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð² Ð½Ð° ÑÐ²Ð¾Ð»ÑÑÐ¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð¸ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑÐ¸ÑÑÐ¸ÐºÐ¸ ÑÐ¿Ð»Ð°Ð²Ð° Al-Zn-Mg-Cu, ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ½Ð¾Ð¹ ÑÐ²Ð°ÑÐºÐ¾Ð¹ ÑÑÐµÐ½Ð¸ÐµÐ¼ Ñ Ð¿ÐµÑÐµÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸ÐµÐ¼Â». ÐÐ¼Ð¿ÑÐ»ÑÑÐ½Ð°Ñ ÑÐ²Ð°ÑÐºÐ° ÑÑÐµÐ½Ð¸ÐµÐ¼ Ñ Ð¿ÐµÑÐµÐ¼ÐµÑÐ¸Ð²Ð°Ð½Ð¸ÐµÐ¼ (ÐÐ¡Ð¢Ð) Ð¸ÑÐ¿Ð¾Ð»ÑÐ·Ð¾Ð²Ð°Ð»Ð°ÑÑ Ð´Ð»Ñ ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ñ Ð¿Ð»Ð°ÑÑÐ¸Ð½ Ð¸Ð· ÑÐ¿Ð»Ð°Ð²Ð° 7075âT6 (AlZnMgCu1,5) Ð¿ÑÐ¸ ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ ÑÐ°ÑÑÐ¾ÑÐ°Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð². ÐÑÐ»Ð¸ÑÐ¸ÑÐµÐ»ÑÐ½Ð¾Ð¹ Ð¾ÑÐ¾Ð±ÐµÐ½Ð½Ð¾ÑÑÑÑ ÐÐ¡Ð¢Ð ÑÐ²Ð»ÑÐµÑÑÑ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ñ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð², ÑÑÐ¸Ð»Ð¸Ð²Ð°ÑÑÐ¸Ñ Ð¿ÑÐ¾ÐºÐ¾Ð²ÑÐ²Ð°ÑÑÐµÐµ Ð´ÐµÐ¹ÑÑÐ²Ð¸Ðµ Ð¸Ð½ÑÑÑÑÐ¼ÐµÐ½ÑÐ° Ð¸ ÑÐµÐ¼ ÑÐ°Ð¼ÑÐ¼ Ð¸Ð·Ð¼ÐµÐ½ÑÑÑÐ¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ ÑÐ²Ð°. ÐÑÐ»Ð° Ð¸ÑÑÐ»ÐµÐ´Ð¾Ð²Ð°Ð½Ð° ÑÐ²Ð¾Ð»ÑÑÐ¸Ñ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð² ÑÐ°Ð·Ð»Ð¸ÑÐ½ÑÑ Ð·Ð¾Ð½Ð°Ñ ÑÐ²Ð°ÑÐ½Ð¾Ð³Ð¾ ÑÐ²Ð° Ñ Ð¾ÑÐ¾Ð±ÑÐ¼ Ð²Ð½Ð¸Ð¼Ð°Ð½Ð¸ÐµÐ¼ Ð½Ð° Ð¿Ð¾Ð²ÐµÐ´ÐµÐ½Ð¸Ðµ ÑÐ¿ÑÐ¾ÑÐ½ÑÑÑÐ¸Ñ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Ð¸ Ð¾Ð±ÑÐ¸Ðµ Ð¼ÐµÑÐ°Ð½Ð¸ÑÐµÑÐºÐ¸Ðµ ÑÐ²Ð¾Ð¹ÑÑÐ²Ð° ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ð¹ ÐÐ¡Ð¢Ð. ÐÐ¾ÐºÐ°Ð·Ð°Ð½Ð¾, ÑÑÐ¾ Ð¿ÑÐ¸Ð¼ÐµÐ½ÐµÐ½Ð¸Ðµ Ð¸Ð¼Ð¿ÑÐ»ÑÑÐ¾Ð² Ð² Ð¿ÑÐ¾ÑÐµÑÑÐµ ÐÐ¡Ð¢Ð Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº ÑÑÐºÐ¾ÑÐµÐ½Ð¸Ñ Ð¿ÑÐ¾ÑÐµÑÑÐ¾Ð² Ð¿Ð¾Ð²ÑÐ¾ÑÐ½Ð¾Ð³Ð¾ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ñ ÑÐ°ÑÑÐ¸Ñ Ð²ÑÐ¾ÑÐ¾Ð¹ ÑÐ°Ð·Ñ Ð¸ Ð´Ð¸Ð½Ð°Ð¼Ð¸ÑÐµÑÐºÐ¾Ð¹ ÑÐµÐºÑÐ¸ÑÑÐ°Ð»Ð»Ð¸Ð·Ð°ÑÐ¸Ð¸, ÑÑÐ¾ Ð¿ÑÐ¸Ð²Ð¾Ð´Ð¸Ñ Ðº Ð¾Ð±ÑÐ°Ð·Ð¾Ð²Ð°Ð½Ð¸Ñ ÑÐ¿ÑÐ¾ÑÐ½ÑÑÑÐ¸Ñ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Ð¸ Ð¾Ð´Ð½Ð¾ÑÐ¾Ð´Ð½Ð¾Ð¹ Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÑ Ð·ÐµÑÐµÐ½ Ð² ÐÐ ÑÐ¾Ð¾ÑÐ²ÐµÑÑÑÐ²ÐµÐ½Ð½Ð¾. ÐÐ¢Ð ÑÐ²Ð°ÑÐ½ÑÑ ÑÐ²Ð¾Ð², Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ Ð¡Ð¢Ð Ð¸ ÐÐ¡Ð¢Ð, Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÑÑ ÑÐ¾Ð±Ð¾Ð¹ Ð·ÐµÑÐ½Ð° ÑÐ²Ð¾Ð±Ð¾Ð´Ð½ÑÐµ Ð¾Ñ Ð´Ð¸ÑÐ»Ð¾ÐºÐ°ÑÐ¸Ð¹. Ð¡Ð¾Ð´ÐµÑÐ¶Ð°Ð½Ð¸Ðµ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Ð² ÐÐ¢Ð ÑÐ²Ð°ÑÐ½ÑÑ ÑÐ²Ð¾Ð², Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½ÑÑ ÑÑÐ°Ð´Ð¸ÑÐ¸Ð¾Ð½Ð½ÑÐ¼Ð¸ Ð¡Ð¢Ð Ð¸ ÐÐ¡Ð¢Ð, ÑÐ¾Ð²ÐµÑÑÐµÐ½Ð½Ð¾ ÑÐ°Ð·Ð»Ð¸ÑÐ½Ð¾. ÐÐ¢Ð ÑÐ²Ð°ÑÐ½Ð¾Ð³Ð¾ ÑÐ²Ð°, Ð¿Ð¾Ð»ÑÑÐµÐ½Ð½Ð¾Ð³Ð¾ Ð¾Ð±ÑÑÐ½Ð¾Ð¹ Ð¡Ð¢Ð, Ð¸Ð¼ÐµÐµÑ Ð¿Ð¾ÑÑÐ¸ ÑÐ°ÐºÐ¾Ð¹ Ð¶Ðµ ÑÐ°ÑÐ°ÐºÑÐµÑ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ñ, ÑÑÐ¾ Ð¸ ÐÐ - Ð±Ð¾Ð»ÑÑÐ°Ñ ÑÐ°ÑÑÑ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Ð¸Ð¼ÐµÐµÑ ÑÐ¸Ð¼Ð¸ÑÐµÑÐºÐ¸Ð¹ ÑÐ¾ÑÑÐ°Ð² Zn, Mg Ð¸ Cu Ð¸ Ð¿ÑÐµÐ´ÑÑÐ°Ð²Ð»ÑÐµÑ ÑÐ¾Ð±Ð¾Ð¹ ÑÑÐ°Ð±Ð¸Ð»ÑÐ½ÑÑ Î·-ÑÐ°Ð·Ñ. Ð Ð¾ÑÐ»Ð¸ÑÐ¸Ðµ Ð¾Ñ ÑÑÐ¾Ð³Ð¾, Ð² Ð¼Ð¸ÐºÑÐ¾ÑÑÑÑÐºÑÑÑÐµ ÐÐ¢Ð ÑÐ¾ÐµÐ´Ð¸Ð½ÐµÐ½Ð¸Ñ ÐÐ¡Ð¢Ð Ð±ÑÐ»Ð° Ð¾Ð±Ð½Ð°ÑÑÐ¶ÐµÐ½Ð° Ð²ÑÑÐ¾ÐºÐ°Ñ ÐºÐ¾Ð½ÑÐµÐ½ÑÑÐ°ÑÐ¸Ñ Ð¼ÐµÑÐ°ÑÑÐ°Ð±Ð¸Ð»ÑÐ½ÑÑ Ð²ÑÐ´ÐµÐ»ÐµÐ½Ð¸Ð¹ Î·'.
description: The topic of the qualification work is: Â«Impact of impulses on microstructural evolution and mechanical performance of Al-Zn-Mg-Cu alloy joined by impulse friction stir weldingÂ». Impulse Friction Stir Welding (IFSW) was utilized to join 7075âT6 (AlZnMgCu1,5) alloy plates at various impulse frequencies. A distinctive feature of IFSW is a generation of mechanical impulses that enhances forging action of the tool and thereby alters the weld microstructure. The microstructural evolution in the different zones of the weld with special focus on the strengthening precipitation behavior, and overall mechanical properties of the IFSW joints have been investigated. It was demonstrated that the application of impulses in the IFSW process entailed the acceleration of the reprecipitation and dynamic recrystallization processes resulted in the formation of the strengthening precipitates and the homogeneous grain microstructure in the SZ, respectively. HAZ of the welds obtained by the FSW and IFSW represent dislocation free grains interior. The precipitation content in the HAZ of the welds obtained by conventional FSW and IFSW is completely different. The HAZ of the weld obtained by conventional FSW has almost the same precipitation behavior as BM - the most part of the precipitates has Zn, Mg and Cu as a chemical composition and represent stable Î· phase. In contrast, the high concentration of metastable Î·' precipitates were found in the HAZ microstructure of the IFSW joint.