13问答网 > 40Cr材料调质处理后硬度合格但金相不合格是怎么回事?硬度要求HRC26-34

40Cr材料调质处理后硬度合格但金相不合格是怎么回事?硬度要求HRC26-34

一般为5级和6级，但要求1到4级
2025-03-15 17:41:00
推荐回答（3个）
回答1：

你热处理温度多高啊，如果温度过高的话晶粒组织粗大，，其他性能合格金相也有可能不合格。此外原材料是什么？是本质粗晶粒钢还是本质细晶粒钢。这些都会影响你最终热处理的结果。

回答2：

正比例函数，y=kx和一次函数y=kx+b的图像都经过点A（1，2）且一次函数的图像交x轴于点B(4,0）求正比例函数和一次函数

回答3：

.

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