2090 – 05 – When Does Pearlite Form? скачать в хорошем качестве

2090 – 05 – When Does Pearlite Form?

At room temperature, steel contains both ferrite and cementite. As steel cools from the cementite to the austenite phase, part of the ferrite and cementite turns into pearlite. Pearlite has equal rows of ferrite and cementite. Austenite will become pearlite in between 1000 and 1341 degrees Fahrenheit. Pearlite formation occurs differently in hypoeutectoid and hypereutectoid steels. Since hypoeutectoid steel has less carbon, it forms ferrite first. The rest of the austenite will change to pearlite when temperatures are below 1341 Fahrenheit. This creates steel with a mix of ferrite and pearlite. Hypereutectoid steels have more carbon content, so cementite makes at austenite grain boundaries at the start of the cooling process. When steel dips below the eutectic temperature, the last parts of austenite will change to pearlite, creating a mixture of pearlite and cementite. 👉 𝗧𝗲𝘀𝘁 𝘆𝗼𝘂𝗿 𝗸𝗻𝗼𝘄𝗹𝗲𝗱𝗴𝗲 𝗯𝘆 𝘁𝗮𝗸𝗶𝗻𝗴 𝘁𝗵𝗲 𝗤𝘂𝗶𝘇 https://sawbladeuniversity.com/videos... 👉 𝗝𝗼𝗶𝗻 𝗦𝗮𝘄𝗯𝗹𝗮𝗱𝗲𝗨𝗻𝗶𝘃𝗲𝗿𝘀𝗶𝘁𝘆.𝗰𝗼𝗺 https://sawbladeuniversity.com/register/ Create your FREE account today and get full access to 300+ lessons in precision metal working, which can include training in tool and die making, welding and sheet metal working. 👉 𝗦𝘂𝗯𝘀𝗰𝗿𝗶𝗯𝗲 𝘁𝗼 𝗦𝗮𝘄𝗯𝗹𝗮𝗱𝗲.𝗰𝗼𝗺 𝗰𝗵𝗮𝗻𝗻𝗲𝗹 𝗳𝗼𝗿 𝗺𝗼𝗿𝗲 𝘂𝗽𝗱𝗮𝘁𝗲𝘀    / sawblade   Follow Our Social Media: Facebook: @sawbladecom Instagram: @sawbladecom_ Twitter: @SawBladecom Visit Our Websites: https://sawblade.com https://sawbladeracing.com https://sawblade.tv #SawbladeUniversity #Sawbladecom #SawbladeTV