德國FISCHER便攜式電磁感應鐵素體測試儀的特點:
- 在現(xiàn)場或實驗室中快速、無損地測量鐵素體含量
- 測量范圍: 0.1 - 80% Fe 或 0.1 - 110 FN
- 可以以鐵素體百分比“%Fe”或是以鐵素體數(shù)“FN”作為測量單位
- 根據(jù) ISO 17655標準或“巴塞爾標準”進行測量
- 校準用標準片可溯源到 TWI 二級標準,符合標準ISO 8249 以及 AWS A4.2M 的要求。
- 可以使用客戶自有的標準進行校準.
德國FISCHER便攜式電磁感應鐵素體測試儀典型應用領域
測量以下材料內(nèi)的鐵素體含量:
- 雙相鋼
- 奧氏體焊縫(鋼管或鋼片上)
- 有奧氏體鉻合金鋼焊覆層的普通鋼(鍋爐、容器)
Chemical, energy and processing plants are often
subject to heat, aggressive media and high pressure.
These circumstances demand steel with high corrosion
and acid resistance that are resilient even at high
temperatures. If the ferrite content is too low, then
the welded material is susceptible to hot-cracking, if
the ferrite content is too high, the toughness, ductility
as well as the corrosion resistance of the steel are
reduced. For duplex steel, a ferrite deficit in the area
of the weld seam results in stress corrosion cracking
and reduction in strength.