CST MWS材質料庫中的COPPER電導率
請教一下
我軟體中的COPPER(annealed) & COPPER(hard-down)
El.cond都是5.96e+007[S/m]
照道理數值應該會不一樣吧?
知道這些，希望對你有幫助
1. 退火銅COPPER(annealed): Annealing, in metallurgy and materials science, is a heat treatment wherein a material is altered, causing changes in its properties such as strength and hardness. It is a process that produces conditions by heating to above the recrystallization temperature, maintaining a suitable temperature, and then cooling. Annealing is used to induce ductility, soften material, relieve internal stresses, refine the structure by making it homogeneous, and improve cold working properties.
In the cases of copper, steel, silver, and brass, this process is performed by substantially heating the material (generally until glowing) for a while and allowing it to cool. Unlike ferrous metals—which must be cooled slowly to anneal—copper, silver and brass can be cooled slowly in air or quickly by quenching in water. In this fashion the metal is softened and prepared for further work such as shaping, stamping, or forming.
2. 退火銅是有自然冷卻（heating the material (generally until glowing) for a while and allowing it to cool.）。印象里hard-down銅是硬拉制銅，未經退火，這兩種銅只是加工工藝的區別，具體到MW仿真時電參數應該一樣，仿真結果應該也相同，這點不太確定，等熟悉者進一步解答。
請問我看銅料中的導電百分比(IACS)為27
改如何輸入到軟體中? 不知如何換算5.96e+007[S/m] ?
1. IACS (international annealing copper standard)國際退火銅標準,
2. %IACS 是導電 率 conductivity .
3. 試 樣 電 導率與某一標準值的比值的百分數稱為該試樣的導電率。(注意電導率和導電率不同)
4. 導 電率 ( %IACS)=0.017241/ ρ*100%（國際退火銅標準），ρ是材料的電阻率。
5. 電導率γ=1/ρ，其單位為 S/m.
因此可以得出 %IACS=27% 電導率γ=1/ρ=0.27/0.017241=15.6603445 S/m （
與e+7差的有點大，等待牛人糾錯）
所以我要在El.cond裡面輸入15.6603445 S/m 是嗎?
不清楚小編使用的是什么版本，我所見過的CST版本退火銅是5.8，冷拉銅是5.96。
舊貼參考：http://bbs.rfeda.cn/read.php?tid=58276&page=2#531080。
銅料中的導電百分比(IACS)為27 =>換算成CST El.cond等於15.6603445 S/m 對嗎?
還是有其他換算方法?
