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哪些因素會影響C4鋼材料的性能

文章出處:www.oahu-luau.com  |  發布時間:2021/7/22 16:46:08  |  瀏覽次數:0

    隨著各類建筑的發展,也在不斷的發展,C4鋼材料的種類有很多種,性能也是完全不一樣,大家可能不太了解C4鋼材料的性能,今天C4鋼價格,C4鋼廠家就來和大家分析分析影響性能的因素.


    一、溫度的影響:C4鋼材料性能隨溫度改變而有所變化.總的來說,溫度升高,鋼 材強度降低,應變增大;相反,溫度降低,C4鋼材料強度會略有增 加,塑性和韌性卻會降低因而變脆.在250°C時,C4鋼材料的抗拉強 度略有提高,塑性則降低,因而C4鋼材料出現脆性,稱為蘭脆.在此 時對C4鋼材料進行熱加工,C4鋼材料可能產生裂縫,在250?350°C時, C4鋼材料將出現徐變現象.

    二、冶金缺陷:常見的冶金缺陷有偏析、非金屬雜質、裂紋和起層,C4鋼材料中將化學雜質元素分布的不均勻性稱為偏析.主要的偏 析是硫和磷,會使偏析區的C4鋼材料的塑性、韌性及可焊性變壞.

    三、殘余應力影響:殘余應力是由于C4鋼材料在加工過程中溫度不均而冷卻產生的, 是一種自相平衡的應力,不影響構件的承載力,但會降低構件的 剛度和穩定性.

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