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哈氏合金简介[0]

Posted on 2023年11月14日 by

本篇基于AI进行的修正。斜体是人工编写,其余为AI生成。

哈氏合金是由英国冶金学家哈利·布莱斯·哈氏(Harry Brearley Hass)于1913年发明的一种不锈钢。哈氏合金是一种高合金钢,其中包含至少10.5%的铬,这使其能够形成一层致密的氧化铬层,从而防止钢锈的形成。

哈氏合金除了铬之外,还包含其他元素,如镍、钼和钴等,以增加其强度和耐蚀性。这些元素还可以改善其加工性能和耐磨性。哈氏合金的用途广泛,包括制造刀具、炼油设备、化工设备、医疗器械和厨房用具等。

哈氏合金的优点包括:耐蚀性好、强度高、易于加工、容易清洁和维护、抗菌性强等。由于其广泛应用和优良性能,哈氏合金已成为不锈钢中最常用的类型之一。

哈氏合金的物理特性如下:

  1. 密度:哈氏合金的密度约为7.8克/立方厘米。
  2. 热膨胀系数:哈氏合金的热膨胀系数约为17×10^-6/℃,与大多数金属相似。
  3. 热导率:哈氏合金的热导率比一般钢材低,约为15到20瓦特/(米·开)。
  4. 电导率:哈氏合金的电导率比铜低,约为2.4×10^6西门子/米。
  5. 磁性:哈氏合金通常是非磁性的,但也有一些磁性的哈氏合金。
  6. 硬度:哈氏合金的硬度比一般钢材高,通常在HB 200-300之间。
  7. 强度:哈氏合金的强度很高,通常可以承受高达1000MPa的拉伸应力。

总的来说,哈氏合金具有优异的耐腐蚀性、高强度、良好的加工性能、抗菌性等特点,使其成为广泛应用于制造化工设备、石油加工设备、刀具、医疗器械、食品加工设备和厨房用具等领域的一种重要材料。

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