{"id":5050,"date":"2023-10-31T15:18:34","date_gmt":"2023-10-31T06:18:34","guid":{"rendered":"https:\/\/unit.nifs.ac.jp\/research\/?post_type=articles&p=5050"},"modified":"2023-10-31T15:18:34","modified_gmt":"2023-10-31T06:18:34","slug":"articles-5050","status":"publish","type":"articles","link":"https:\/\/unit.nifs.ac.jp\/research\/archives\/articles\/articles-5050","title":{"rendered":"\u8ad6\u6587\u7d39\u4ecb"},"content":{"rendered":"\n
\n
<\/div>\n\n\n\n
\n

\u201cEffects of titanium concentration on microstructure and mechanical properties of high-purity vanadium alloys\u201d Jingjie Shen, Takuya Nagasaka, Masayuki Tokitani, Takeo Muroga, Ryuta Kasada, Seiji Sakurai, Materials & Design, 224, 111390, (2022). <\/strong><\/p>\n\n\n\n

<\/div>\n\n\n
\n
\"\"<\/a>
Figure. TEM images of high-purity vanadium alloys with various titanium concentrations.<\/figcaption><\/figure>\n<\/div>\n\n\n

In this study, effects of titanium (Ti) concentration on microstructure and mechanical properties of high-purity vanadium (V) alloys (V-4Cr-xTi, x= 0 ~ 4 wt%) are investigated. As shown in the figure, precipitate formation is related to Ti concentration. There are no precipitates in V-4Cr-0Ti alloy, in contrast, precipitates are observed in V-4Cr-1Ti and higher Ti-added alloys, suggesting 1 wt% Ti addition enables to scavenge the interstitial impurities (eg., carbon, nitrogen, oxygen) in the matrix. Moreover, hardness and tensile strength increase with increasing Ti concentration. Strengthening mechanisms of the recrystallized vanadium alloys including solid solution strengthening, grain boundary strengthening, and precipitation strengthening are discussed.<\/p>\n\n\n\n

<\/div>\n\n\n\n

https:\/\/doi.org\/10.1016\/j.matdes.2022.111390<\/a><\/p>\n\n\n\n

<\/div>\n\n\n\n
\n\n\n\n

\u3000<\/p>\n\n\n\n

“Effects of annealing temperature on microstructure and hardness of cold rolled high-purity V-4Cr-xTi alloys” Jingjie Shen, Kazuki Saito, Masayuki Tokitani, Takeo Muroga, Fusion Engineering and Design, 194, 113905, (2023).<\/strong><\/p>\n\n\n\n

<\/p>\n\n\n\n

<\/div>\n\n\n
\n
\"\"
Figure. SEM images of cold rolled high-purity vanadium alloys after annealing for 1 h at 873 \u2013 1273 K.<\/figcaption><\/figure>\n<\/div>\n\n\n

In this study, to reveal the recrystallization behavior of the recently developed high-purity vanadium (V) alloys (V-4Cr-xTi, x= 0 ~ 4 wt%) after cold rolling, microstructural evolution and hardness changes upon annealing temperature in the range of 873 \u2013 1273 K are investigated. As shown in the figure, recovery and recrystallization occur as increasing the annealing temperature in both V-4Cr-0Ti and V-4Cr-4Ti alloys. Microstructures such as precipitates, grains, and hardness variations,
which are dependent on annealing temperature and Ti concentration, are characterized. Furthermore, effects of purification on the recrystallization behavior and hardness are discussed in comparison with previous vanadium alloys.<\/p>\n\n\n\n

<\/div>\n\n\n\n

https:\/\/doi.org\/10.1016\/j.fusengdes.2023.113905<\/a><\/p>\n\n\n\n

<\/div>\n<\/div>\n\n\n\n
<\/div>\n<\/div>\n","protected":false},"author":10,"featured_media":0,"menu_order":0,"template":"","meta":{"_acf_changed":false,"footnotes":""},"ppma_author":[348],"class_list":["post-5050","articles","type-articles","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/articles\/5050","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/articles"}],"about":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/types\/articles"}],"author":[{"embeddable":true,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/users\/10"}],"version-history":[{"count":4,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/articles\/5050\/revisions"}],"predecessor-version":[{"id":5056,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/articles\/5050\/revisions\/5056"}],"wp:attachment":[{"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/media?parent=5050"}],"wp:term":[{"taxonomy":"author","embeddable":true,"href":"https:\/\/unit.nifs.ac.jp\/research\/wp-json\/wp\/v2\/ppma_author?post=5050"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}