…When the activity of oxygen contained in this cast iron is reduced by using a deoxidizer such as magnesium, graphite precipitates in a spherical shape, eliminating the variation in material strength and creating ductility. This is called spheroidal graphite cast iron. By changing the cooling rate and other heat treatment conditions, the structure can be made into pearlite and graphite, increasing the strength. … *Some of the terminology that refers to "spheroidal graphite cast iron" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…この鋳鉄に含まれる酸素の活量をマグネシウムなどの脱酸材を用いて下げると,黒鉛が球状に析出し,材料強度のばらつきがなくなり,延性が生じてくる。これを球状化黒鉛鋳鉄という。冷却速度などの熱処理条件を変えることにより,組織をパーライトと黒鉛にして強度を上昇させることもできる。… ※「球状化黒鉛鋳鉄」について言及している用語解説の一部を掲載しています。 出典|株式会社平凡社世界大百科事典 第2版について | 情報 |
Volunteer soldiers of the Qing Dynasty in China. ...
…These hardline measures drew opposition from the...
A god of direction that must be avoided and feare...
The name of the lava distributed on the northern ...
It is a form of beauty whose essence is the expre...
...In addition, management research in the United...
Russian painter, set designer, photographer, and ...
American jazz tenor saxophonist. Born in New York...
…(2) The name of a school of Noh performers who p...
A US artificial satellite for observing the sun. O...
ACM is a common market among Arab countries. It w...
French author and archbishop. Born into an old no...
The major philosophical work of the British philo...
...The chemical composition of the part excluding...
...Even in compounds with stoichiometric composit...