百度作业网中碳钢 硬度 question
来源：学生作业帮 编辑：百度作业网作业帮 分类：英语作业 时间：2024/05/29 07:19:01
中碳钢 硬度 question
Sorry cant type Chinese in this computer.I got a question comparing the hardness of alloy steel 1045 and 4140.From the published data I can see that 4140 is harder.I just wanna know why.is it related to the composition?like weight percent of carbon.
cheers
thanks for 才过正午十三点 but when I compare 1045 and 4140,1045 has a larger carbon proportion but actually its hardness is less than the 4140.why?anyone help me.
Sorry cant type Chinese in this computer.I got a question comparing the hardness of alloy steel 1045 and 4140.From the published data I can see that 4140 is harder.I just wanna know why.is it related to the composition?like weight percent of carbon.
cheers
thanks for 才过正午十三点 but when I compare 1045 and 4140,1045 has a larger carbon proportion but actually its hardness is less than the 4140.why?anyone help me.
对钢材来讲,含碳量越高,强度、硬度越大,塑性、韧性越差